|
|
Product Numbers: PA-2CE1/PRI-75(=), PA-2CE1/PRI-120(=)
This document explains how to install and configure the channelized E1 Integrated Services Digital Network (ISDN) Primary Rate Interface (PRI) port adapters (PA-2CE1/PRI-75 and PA-2CE1/PRI-120), hereafter referred to as the 2CE1 port adapters, in the following platforms:
This configuration note is organized into three parts:
1. The following sections include general information and information about port adapter installation:
2. The following section includes information specific to the 2CE1 port adapter:
3. The following sections include information specific to the 2CE1 port adapter's use on the VIP2 in Cisco 7500 series routers and Cisco 7000 series routers using the RSP7000 and RSP7000CI, and in Cisco 7200 series routers:
The "Cisco Connection Online" section includes general reference information.
Your router and the Cisco IOS software running on it contain extensive features and functionality, which are documented in the following resources:
To view Cisco documentation or obtain general information about the documentation, see the "Cisco Connection Online" section, the "Documentation CD-ROM" section, or call Customer Service at 800 553-6387 or 408 526-7208. Customer Service hours are 5:00 a.m. to 6:00 p.m. Pacific time, Monday through Friday (excluding company holidays). You can also send e-mail to cs-rep@cisco.com, or refer to the Cisco Information Packet that shipped with your router.
The following sections discuss general information and information about port adapter installation requirements:
A Telecommunications Authority of Singapore (TAS) label is shipped with each PA-2CE1 and port adapter and signifies that each port adapter meets Singapore's requirements as specified for connecting to the public network.
Attach the TAS label to the rear of the host Cisco 7200 or Cisco 7500 series chassis next to the other agency approvals for the chassis. (See Figure 1.)

Table 1 lists the recommended minimum Cisco IOS software release required to use the 2CE1 port adapters in supported router platforms.
| Router Platform | Recommended Minimum Cisco IOS Release |
|---|---|
| Cisco 7000 series and Cisco 7500 series |
|
| Cisco IOS Release 11.1(10)CA or a later release of Cisco IOS Release 11.1 CA |
| Cisco IOS Release 11.1(14)CA or a later release of Cisco IOS Release 11.1 CA |
| Cisco 7200 series |
|
| Cisco IOS Release 11.1(9)CA1 or a later release of Cisco IOS Release 11.1 CA |
| Cisco IOS Release 11.1(19)CC1 or a later release of Cisco IOS Release 11.1 CC |
PA-3-NOTSUPPORTED: PA in slot1 (Channelized E1 (unbalanced)) is not supported on this chassis
PA-3-NOTSUPPORTED: PA in slot1 (Channelized E1 (balanced)) is not supported on this chassis
The 2CE1 port adapters can be used in the second-generation Versatile Interface Processor (VIP2) in all Cisco 7500 series routers and in Cisco 7000 series routers that use the RSP7000 and RSP7000CI, and in Cisco 7200 series routers.
2CE1 port adapters can be installed in port adapter slot 0 or slot 1 on the VIP2 motherboard, or in any available port adapter slot in Cisco 7200 series chassis.
Cisco 7000, Cisco 7500, and Cisco 7200 series routers support up to five installed 2CE1 port adapters that are running ISDN PRI (ten E1 ports total, including E1 ports on MultiChannel Interface Processors installed in Cisco 7000 series or Cisco 7500 series routers). There are no such limitations when installed 2CE1 port adapters are running channelized E1.
The specific VIP2 models recommended for the 2CE1 port adapters are VIP2-40(=), which has 2 MB of SRAM and 32 MB of DRAM, and VIP2-50(=), which has 4 to 8 MB of SRAM and 32 to 128 MB of SDRAM. The VIP2-40 and VIP2-50 support two installed 2CE1 port adapters that are running ISDN PRI with distributed services or channelized E1 with distributed switching or distributed services. The VIP2-20=, which has 1 MB of SRAM and 16 MB of DRAM, supports two installed 2CE1 port adapters that are running ISDN PRI or channelized E1 with distributed switching. The VIP2-15(=), which has 1 MB of SRAM and 8 MB of DRAM, supports one installed 2CE1 port adapter that is running ISDN PRI or channelized E1 without distributed switching.
Cisco 7200 series routers require a minimum of 32 MB of DRAM to support up to five installed 2CE1 port adapters that are running ISDN PRI or channelized E1.
Following are safety guidelines that you should observe when working with any equipment that connects to electrical power or telephone wiring.
Safety warnings appear throughout this publication in procedures that, if performed incorrectly, might harm you. A warning symbol precedes each warning statement.
![]() | Warning his warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device. |
Waarschuwing Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van standaard maatregelen om ongelukken te voorkomen. Voor vertalingen van de waarschuwingen die in deze publicatie verschijnen, kunt u het document Regulatory Compliance and Safety Information (Informatie over naleving van veiligheids- en andere voorschriften) raadplegen dat bij dit toestel is ingesloten.
Varoitus Tämä varoitusmerkki merkitsee vaaraa. Olet tilanteessa, joka voi johtaa ruumiinvammaan. Ennen kuin työskentelet minkään laitteiston parissa, ota selvää sähkökytkentöihin liittyvistä vaaroista ja tavanomaisista onnettomuuksien ehkäisykeinoista. Tässä julkaisussa esiintyvien varoitusten käännökset löydät laitteen mukana olevasta Regulatory Compliance and Safety Information -kirjasesta (määräysten noudattaminen ja tietoa turvallisuudesta).
Attention Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant causer des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez conscient des dangers posés par les circuits électriques et familiarisez-vous avec les procédures couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions d'avertissements figurant dans cette publication, consultez le document Regulatory Compliance and Safety Information (Conformité aux règlements et consignes de sécurité) qui accompagne cet appareil.
Warnung Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu einer Körperverletzung führen könnte. Bevor Sie mit der Arbeit an irgendeinem Gerät beginnen, seien Sie sich der mit elektrischen Stromkreisen verbundenen Gefahren und der Standardpraktiken zur Vermeidung von Unfällen bewußt. Übersetzungen der in dieser Veröffentlichung enthaltenen Warnhinweise finden Sie im Dokument Regulatory Compliance and Safety Information (Informationen zu behördlichen Vorschriften und Sicherheit), das zusammen mit diesem Gerät geliefert wurde.
Avvertenza Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. Prima di lavorare su qualsiasi apparecchiatura, occorre conoscere i pericoli relativi ai circuiti elettrici ed essere al corrente delle pratiche standard per la prevenzione di incidenti. La traduzione delle avvertenze riportate in questa pubblicazione si trova nel documento Regulatory Compliance and Safety Information (Conformità alle norme e informazioni sulla sicurezza) che accompagna questo dispositivo.
Advarsel Dette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan føre til personskade. Før du utfører arbeid på utstyr, må du vare oppmerksom på de faremomentene som elektriske kretser innebærer, samt gjøre deg kjent med vanlig praksis når det gjelder å unngå ulykker. Hvis du vil se oversettelser av de advarslene som finnes i denne publikasjonen, kan du se i dokumentet Regulatory Compliance and Safety Information (Overholdelse av forskrifter og sikkerhetsinformasjon) som ble levert med denne enheten.
Aviso Este símbolo de aviso indica perigo. Encontra-se numa situação que lhe poderá causar danos físicos. Antes de começar a trabalhar com qualquer equipamento, familiarize-se com os perigos relacionados com circuitos eléctricos, e com quaisquer práticas comuns que possam prevenir possíveis acidentes. Para ver as traduções dos avisos que constam desta publicação, consulte o documento Regulatory Compliance and Safety Information (Informação de Segurança e Disposições Reguladoras) que acompanha este dispositivo.
¡Advertencia! Este símbolo de aviso significa peligro. Existe riesgo para su integridad física. Antes de manipular cualquier equipo, considerar los riesgos que entraña la corriente eléctrica y familiarizarse con los procedimientos estándar de prevención de accidentes. Para ver una traducción de las advertencias que aparecen en esta publicación, consultar el documento titulado Regulatory Compliance and Safety Information (Información sobre seguridad y conformidad con las disposiciones reglamentarias) que se acompaña con este dispositivo.
Varning! Denna varningssymbol signalerar fara. Du befinner dig i en situation som kan leda till personskada. Innan du utför arbete på någon utrustning måste du vara medveten om farorna med elkretsar och känna till vanligt förfarande för att förebygga skador. Se förklaringar av de varningar som förkommer i denna publikation i dokumentet Regulatory Compliance and Safety Information (Efterrättelse av föreskrifter och säkerhetsinformation), vilket medföljer denna anordning.
Follow these basic guidelines when working with any electrical equipment:
Electrostatic discharge (ESD) damage, which can occur when electronic cards or components are improperly handled, results in complete or intermittent failures. Port adapters and processor modules comprise printed circuit boards that are fixed in metal carriers. Electromagnetic interference (EMI) shielding and connectors are integral components of the carrier. Although the metal carrier helps to protect the board from ESD, use a preventive antistatic strap during handling.
Following are guidelines for preventing ESD damage:
![]() | Caution For safety, periodically check the resistance value of the antistatic strap. The measurement should be between 1 and 10 megohms (Mohm). |
The following sections discuss information specific to the 2CE1 port adapter locations, LEDs, and cables:
The 2CE1 port adapters, shown in Figure 2 and Figure 3, provide up to two channelized E1 (unbalanced 75-ohm or balanced 120-ohm) or ISDN PRI interfaces for connecting Cisco 7000 series routers to channel service units (CSUs). Each 2CE1 interface can transmit and receive data bidirectionally at the E1 rate of 2.048 megabits-per-second (Mbps).
Each 2CE1 interface connects to external networks through a single port that has a 15-pin, D-shell receptacle. You must use G.703 serial interface cables to connect unbalanced 75-ohm or balanced 120-ohm 2CE1 interfaces to a CSU. 2CE1 interfaces are configurable for balanced and unbalanced connections by setting jumpers on the 2CE1 printed circuit board. See the ""Configuring 2CE1 Port Adapter Jumpers" section" for balanced and unbalanced 2CE1 jumper settings.


When running channelized E1, each 2CE1 interface provides up to 31 E1 channel groups, which are numbered from 0 to 30. Each channel group provides up to 31, 64 kilobit-per-second (kbps) timeslots (DS0 channels), which are numbered 1 to 31. Multiple DS0 channels can be mapped to a single channel group. Each channel group is presented to the system as a serial interface that can be configured individually. Usable bandwidth for each channel group is calculated as n x 64 kbps, where n is a number of DS0 channels (1 to 31).
When running ISDN PRI, each 2CE1 interface provides 30 bearer (B) channels that can transmit and receive data at the rate of 64 kbps, full duplex, and one data (D) channel that can transmit and receive data at the rate of 16 kbps, full duplex. The B channels are used for transmitting user data. The D channel is used for call setup control and network connection teardown, and provides the communication from the router to the ISDN switch. The B and D channels are presented to the system as serial interfaces that support High-Level Data Link Control (HDLC) and Point-to-Point protocol (PPP) encapsulation. The 2CE1 port adapter supports dial-on-demand routing (DDR) when running ISDN PRI.
This section provides information about where you can install the 2CE1 port adapters on the VIP2 and in Cisco 7200 series routers.
Figure 4 shows a VIP2-15 or VIP2-40 with two installed port adapters. Figure 5 shows a VIP2-50 with two installed port adapters. With the VIP2 oriented as shown, the left port adapter is in port adapter slot 0, and the right port adapter is in port adapter slot 1.


In Cisco 7200 series routers, port adapter slots are numbered from the lower left to the upper right, beginning with port adapter slot 1 and continuing through port adapter slot 2 for the Cisco 7202, slot 4 for the Cisco 7204 and Cisco 7204VXR, and slot 6 for the Cisco 7206 and Cisco 7206VXR. Port adapter slot 0 is reserved for the optional Fast Ethernet port on the I/O controller---if present.
Figure 6 shows a Cisco 7206 with installed port adapters and an I/O controller with a Fast Ethernet port. Not shown are the Cisco 7202, which has two port adapter slots, the Cisco 7204 and Cisco 7204VXR, which have four port adapter slots, and the Cisco 7206VXR, which has six port adapter slots. The 2CE1 port adapters can be installed in any available port adapter slot in Cisco 7200 series routers.

The 2CE1 port adapters have an enabled LED, standard on all port adapters, and three status LEDs for each port. (See Figure 7.)

After system initialization, the enabled LED goes on to indicate that the port adapter has been enabled for operation.
The following conditions must be met before a 2CE1 port adapter is enabled:
If any of the above conditions are not met, or if the initialization fails for other reasons, the enabled LED will not go on.
Table 2 lists port LED status indications.
| Port LED | Status |
LB (loopback) | This green LED comes on when the port is in loopback mode (line or local). The LED remains off during normal operation of the port adapter. |
LA (local alarm) | This green LED comes on when the incoming signal from a remote source has one of the following alarms: loss of frame (LOF), loss of signal (LOS), alarm indication signal (AIS). The LED remains off during normal operation of the port adapter. |
RA (remote alarm) | This green LED comes on when the remote source's incoming signal is contains a remote alarm (a yellow alarm). The LED remains off during normal operation of the port adapter. |
Three G.703 serial interface cables are available for use with the 2CE1 port adapters; two cables for balanced 120-ohm 2CE1 interface connections, and one cable for an unbalanced 75-ohm 2CE1 interface connection.
All three cables have a 15-pin, D-shell (DB-15) connector at the router (VIP2 or Cisco 7200 series) end and either twinaxial, RJ-45, or BNC connectors at the network end. Figure 8, Figure 9, and Figure 10 show the 2CE1 interface cables.
Following are the product numbers for the 2CE1 interface cables:



Table 2 lists connector pinouts for the 2CE1 interface cables.
| 2CE1 End | Network End | |||||
|---|---|---|---|---|---|---|
| DB-15 | Twinax | RJ-45 | BNC | |||
| Pin1 | Signal2 | Pin | Signal | Pin | Signal | Signal |
9 | Tx Tip | Tx-1 | Tx Tip | 1 | Tx Tip | Tx Tip |
2 | Tx Ring | Tx-2 | Tx Ring | 2 | Tx Ring | Tx Shield |
10 | Tx Shield | Shield | Tx Shield | 3 | Tx Shield | - |
8 | Rx Tip | Rx-1 | Rx Tip | 4 | Rx Tip | Rx Tip |
15 | Rx Ring | Rx-2 | Rx Ring | 5 | Rx Ring | Rx Shield |
7 | Rx Shield | Shield | Rx Shield | 6 | Rx Shield | - |
| 1Any pins not described in this table are not connected. 2Tx = transmit. Rx = receive. |
The following sections provide information specific to the 2CE1 port adapters and their use on the VIP2 in Cisco 7000 series and Cisco 7500 series routers:
The 2CE1 port adapters are used on the VIP2 and can be installed in port adapter slot 0 or port adapter slot 1. Figure 12 shows a 2CE1 port adapter installed on a VIP2-15 or VIP2-40 in port adapter slot 1.

Figure 13 shows two 2CE1 port adapters installed in port adapter slots 0 and 1, on a VIP2-50.

This section provides the standard procedures for installing or replacing a port adapter on the VIP2.
Depending on the circumstances, you might need to install a new port adapter on a VIP2 motherboard or replace a failed port adapter in the field. In either case, you need a number 1 Phillips screwdriver, an antistatic mat onto which you can place the removed interface processor, and an antistatic container into which you can place a failed port adapter for shipment back to the factory.
![]() | Caution To prevent system problems, do not remove port adapters from the VIP2 motherboard, or attempt to install other port adapters on the VIP2 motherboard, while the system is operating. To install or replace port adapters, first remove the VIP2 from its interface processor slot. |
![]() | Caution To prevent interface reconfiguration requirements, you should replace a port adapter with the same type of port adapter you removed, but this is not a requirement. |
When only one port adapter is installed on a VIP2, a blank port adapter must fill the empty slot to allow the VIP2 and router chassis to conform to electromagnetic interference (EMI) emissions requirements, and so that air flows through the chassis properly. If you plan to install a new port adapter, you must first remove the blank port adapter.
Use the following standard procedure to remove and replace any type of port adapter on a VIP2:
Step 1 Attach an ESD-preventive wrist strap between you and an unfinished chassis surface.
Step 2 For a new port adapter installation or a port adapter replacement, disconnect any interface cables from the ports on the front of the port adapter, although, this is not required. You can remove VIP2s with cables attached; however, we do not recommend it.
Step 3 Remove the VIP2 from the system. (Follow the steps in the section "Removing a VIP2" in the configuration note Second-Generation Versatile Interface Processor (VIP2) Installation and Configuration, which shipped with your VIP2.)
Step 4 Place the removed VIP2 on an antistatic mat.
Step 5 Locate the screw at the rear of the port adapter (or blank port adapter) to be replaced. (See Figure 14.) This screw secures the port adapter (or blank port adapter) to its slot.

Step 6 Remove the screw that secures the port adapter (or blank port adapter).
Step 7 With the screw removed, grasp the handle on the front of the port adapter (or blank port adapter) and carefully pull it out of its slot, away from the edge connector at the rear of the slot. (See Figure 15.)

Step 8 If you removed a port adapter, place it in an antistatic container for safe storage or shipment back to the factory. If you removed a blank port adapter, no special handling is required; however, store the blank port adapter for potential future use.
Step 9 Remove the new port adapter from its antistatic container and position it at the opening of the slot. (See Figure 15.)
Step 10 Carefully align the port adapter carrier between the upper and lower edges of the port adapter slot, as shown in Figure 15.
![]() | Caution To prevent jamming the carrier between the upper and lower edges of the port adapter slot, and to assure that the edge connector at the rear of the port adapter seats with the connector at the rear of the port adapter slot, make certain that the leading edges of the carrier are between the upper and lower slot edges, as shown in the cutaway in Figure 16. |

Step 11 Carefully slide the new port adapter into the port adapter slot until the connector on the port adapter is completely seated in the connector on the motherboard.

Step 12 Replace the screw in the rear of the port adapter slot. (See Figure 14 for its location.) Do not overtighten this screw.
Step 13 Reinstall the VIP2 in the system. (Follow the steps in the section "Installing a VIP2" in the configuration note Second-Generation Versatile Interface Processor (VIP2) Installation and Configuration, which shipped with your VIP2.)
Step 14 If disconnected, reconnect the interface cables to the port adapters.
This completes the procedure for installing a new port adapter or replacing a port adapter on a VIP2.
On a single 2CE1 port adapter, you can use up to two G.703 serial connections.
Use the following procedure to connect a 2CE1 interface cable:
Step 1 Attach the cable directly to the receptacle on the 2CE1 port adapter and tighten the strain-relief screws. (See Figure 18.)

Step 2 Attach the network end of the cable to your Primary Rate Interface (PRI) channel service unit (CSU) and tighten the strain-relief screws.
Step 3 Repeat Step 1 and Step 2 for additional cables you want to install.
This completes the procedure for attaching a 2CE1 interface cable.
Depending on the circumstances, you might need to change the configuration of both 2CE1 port adapter interfaces for balanced 120-ohm connections or unbalanced 75-ohm connections.
Configuring 2CE1 port adapter interfaces for balanced 120-ohm or unbalanced 75-ohm connections requires setting ten jumpers on the 2CE1 printed circuit board and attaching the appropriate interface cable (balanced or unbalanced) to both 2CE1 ports. See the ""2CE1 Port Adapter Cables and Pinouts" section," for 2CE1 interface cable types. The following steps explain how to set 2CE1 jumpers for balanced 120-ohm or unbalanced 75-ohm connections.
Step 1 Attach an ESD-preventive wrist strap between you and an unfinished chassis surface.
Step 2 Remove the VIP2 from the chassis. To do so, follow the steps in the section "Removing a VIP2" in the configuration note Second-Generation Versatile Interface Processor (VIP2) Installation and Configuration, which shipped with your VIP2.
Step 3 Remove the installed 2CE1 port adapter from the VIP2. See the earlier section ""Installing or Replacing a Port Adapter on a VIP2" section" for port adapter removal procedures.
Step 4 With the 2CE1 port adapter on an antistatic mat, use a number 1 Phillips screwdriver to remove the three screws that secure the plastic jumper cover to the 2CE1 printed circuit board. (See Figure 19.) Save the screws.

Step 5 Set the ten jumpers on the 2CE1 printed circuit board for balanced 120-ohm or unbalanced 75-ohm interface connections.
Jumper locations J2, J3, J5, J8, J9, J11, J12, and J14 have three pins, and jumper locations J4 and J10 have two pins. Each jumper location is configured by placing an insulated jumper over two pins (leaving the third pin of a three-pin jumper location exposed). In balanced 120-ohm configurations, the insulated jumper covers both pins of jumper locations J4 and J10. In unbalanced 75-ohm configurations, the insulated jumper is not present on jumper locations J4 and J10. Table 3 lists the 2CE1 jumper locations and their jumper settings. Figure 20 and Figure 21 show balanced 120-ohm and unbalanced 75-ohm 2CE1 jumper configurations, respectively.
| Balanced 120-Ohm Configuration | Unbalanced 75-Ohm Configuration | ||
|---|---|---|---|
| Jumper Location | Jumper Setting | Jumper Location | Jumper Setting |
J2 | Right two pins | J2 | Left two pins |
J3 | Right two pins | J3 | Left two pins |
J5 | Right two pins | J5 | Left two pins |
J7 | Left two pins | J7 | Left two pins |
J8 | Right two pins | J8 | Left two pins |
J9 | Right two pins | J9 | Left two pins |
J11 | Right two pins | J11 | Left two pins |
J12 | Right two pins | J12 | Left two pins |
J13 | Left two pins | J13 | Left two pins |
J14 | Right two pins | J14 | Left two pins |
J4 | Present | J4 | Not present |
J10 | Present | J10 | Not present |
J15 | Not present | J15 | Not Present |


Step 6 Replace the plastic jumper cover over the 2CE1 jumpers and secure it to the port adapter's printed circuit board using a number 1 Phillips screwdriver and the screws that you saved in Step 4.
Step 7 Replace the 2CE1 port adapter in the VIP2. See the "Installing or Replacing a Port Adapter on a VIP2" section for port adapter replacement procedures.
Step 8 Replace the VIP2 in the chassis. To do so, follow the steps in the section "Installing a VIP2" in the configuration note Second-Generation Versatile Interface Processor (VIP2) Installation and Configuration, which shipped with your VIP2.
This completes the procedure for configuring 2CE1 port adapter jumpers.
Use the show controllers cbus command to identify the E1 cable type (balanced or unbalanced) attached to the 2CE1. Following is an example of the show controllers cbus command that shows an E1 interface port (3/1/0) with an unbalanced cable attached:
Router# show controllers cbus
slot3: VIP2, hw 2.2, sw 21.40, ccb 5800FFA0, cmdq 480000C0, vps 8192
software loaded from flash slot0:muck/amcrae/vip2_21-40.mxt
FLASH ROM version 255.255
E1 3/1/0, applique is Channelized E1 - unbalanced
gfreeq 48000138, lfreeq 48000180 (1536 bytes), throttled 0
rxlo 4, rxhi 99, rxcurr 0, maxrxcurr 0
[display text omitted]
You modify the configuration of your router through the software command interpreter called the EXEC. You must enter the privileged level of the EXEC command interpreter with the enable command before you can use the configure command to configure a new interface or to change the existing configuration of an interface. The system prompts you for a password if one has been set.
The system prompt for the privileged level ends with a pound sign (#) instead of an angle bracket (>). At the console terminal, use the following procedure to enter the privileged level:
Step 1 At the user-level EXEC prompt, enter the enable command. The EXEC prompts you for privileged-level passwords:
Router> enable
Password:
Step 2 Enter the password (the password is case sensitive). For security purposes, the password is not displayed.
When you enter the correct password, the system displays the privileged-level system prompt (#):
Router#
Proceed to the following section to configure the new interfaces.
If you installed a new 2CE1-equipped VIP2 or if you want to change the configuration of an existing interface, you must use the privileged-level configure command. If you replaced a 2CE1 port adapter that was previously configured, the system will recognize the new 2CE1 port adapter interfaces and bring each of them up in their existing configuration.
After you verify that the new 2CE1 port adapter is installed correctly (the enabled LED goes on), use the configure command to configure the new interfaces. Be prepared with the information you will need, such as the following:
| Keywords by Area | Switch Type |
|---|---|
Australia
|
Australian TS013 switches |
Europe
|
German 1TR6 ISDN switches |
Japan
|
Japanese NTT ISDN switches |
North America
|
AT&T basic rate switches |
New Zealand
|
New Zealand NET3 switches |
For complete descriptions of interface commands and the configuration options available for Cisco 7000 series and Cisco 7500 series-related interfaces, refer to the publications listed in the "Related Documentation" section.
This section describes how to identify chassis slot, port adapter, and 2CE1 port adapter interface numbers.
In the router, physical port addresses specify the actual physical location of each interface port on the port adapter end. (See Figure 22.) This address is composed of a three-part number in the format chassis slot number/port adapter number/interface port number.
Interface ports on 2CE1 port adapters maintain the same address regardless of whether other interface processors are installed or removed. However, when you move a VIP2 to a different slot, the first number in the address changes to reflect the new slot number.
Figure 22 shows some of the port adapter slots and interface ports of a sample Cisco 7505 system. For example, on the 2CE1-equipped VIP2 in chassis slot 3, the addresses for the interface ports are 3/1/0 through 3/1/1 (chassis slot 3, port adapter slot 1, and interface ports 0 through 1). If the port adapter was in port adapter slot 0, these same interface ports would be numbered 3/0/0 through 3/0/1.
The first port adapter slot number is always 0; the second port adapter slot number is always 1. The individual interface port numbers always begin with 0. The number of additional ports depends on the number of ports on a port adapter. Port adapters can occupy either port adapter slot; there are no restrictions.

You can identify interface ports by physically checking the slot/port-adapter/interface port location on the back of the router or by using show commands to display information about a specific interface or all interfaces in the router.
Before you replace an interface cable, replace port adapters, or remove an interface that you will not replace, use the shutdown command to shut down (disable) the interfaces. Doing so prevents anomalies from occurring when you reinstall the new or reconfigured VIP2. You can shut down all 30 interfaces of a controller by specifying the controller before issuing the shutdown command. You can shut down individual interfaces of a controller by specifying the channel group or PRI group assigned to each controller (channel groups and PRI groups are treated as serial interfaces by the system). When you shut down an interface, it is designated administratively down in the show command displays.
Follow these steps to shut down an interface:
Step 1 Enter the privileged level of the EXEC command interpreter. (See the ""Using the EXEC Command Interpreter" section" for instructions.)
Step 2 At the privileged-level prompt, enter configuration mode and specify that the console terminal will be the source of the configuration commands as follows:
Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#
Step 3 Specify the slot/port address of the controller that you want shut down by entering the command controller, followed by the type (e1) and chassis slot number/port adapter number/interface port number. The example that follows is for a 2CE1 in chassis slot 3:
Router(config)# controller e1 3/1/0
Step 4 Enter the shutdown command as follows:
Router(config-cont)# shutdown
Step 5 To shut down existing individual controller interfaces, enter the slot/port:channel-group or pri-group address of each interface followed by the shutdown command. When you have entered all the interfaces to be shut down, press Ctrl-Z (hold down the Control key while you press Z) or enter end to exit configuration mode and return to the EXEC command interpreter prompt as follows:
Router(config)# interface serial 3/1/0:0 Router(config-if)# shutdown Ctrl-Z Router#
Step 6 Write the new configuration to memory as follows:
Router# copy running-config startup-config [OK] Router#
The system displays an OK message when the configuration has been stored.
Step 7 To verify that new interfaces are now in the correct state (shutdown), use the show interfaces serial chassis slot number/port adapter number/interface port number:channel-group or pri-group command to display the specific interface, or use the show controller command, followed by the type (e1) and chassis slot number/port adapter number/interface port number, to display the status of all interfaces of the controller.
Router# show interfaces serial 3/1/0:0 Serial3/1/0:0 is down, line protocol is down Hardware is cxBus E1 [display text omitted]
Step 8 To reenable the interfaces, repeat the above steps, but use the no shutdown command in Step 4; then write the new configuration to memory as follows:
Router(config)# interfaces serial 3/1/0:0 Router(config-if)# no shutdown Ctrl-Z Router# Router# copy running-config startup-config [OK] Router# show interfaces serial 3/1/0:0 Serial3/1/0:0 is up, line protocol is up Hardware is cxBus E1 [display text omitted]
For complete descriptions of software configuration commands, refer to the publications listed in the section ""Related Documentation" section".
Following are instructions for a basic channelized E1 configuration: enabling a controller and specifying IP routing. You might also need to enter other configuration commands depending on the requirements for your system configuration and the protocols you plan to route on the interface. For complete descriptions of configuration commands and the configuration options available, refer to the publications listed in the section "Related Documentation" on page 2.
The channel groups must be mapped before the 2CE1 controller can be configured. Following are controller commands used to map the channel group (the default variable is listed first):
In the following procedure, press the Return key after each configuration step:
Step 1 At the privileged-level prompt, enter configuration mode and specify that the console terminal will be the source of the configuration commands as follows:
Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#
Step 2 At the prompt, specify the controller to configure by entering the command controller, followed by e1, and chassis slot number/port adapter number/interface port number. The following example is for the 2CE1 in chassis slot 3, port adapter slot 1, interface port 1.
Router(config)# controller e1 3/1/1
Step 3 Specify the controller's framing type by entering the framing command:
Router(config-controller)# framing crc4
Step 4 Specify the controller's linecode format by entering the linecode command:
Router(config-controller)# linecode hdb3
Step 5 Specify a channel group and map timeslots to the channel group by entering the channel-group command. The following example specifies channel group 0 and maps timeslots 1, 3 through 5, and 7 to channel group 0:
Router(config-controller)# channel-group 0 timeslots 1,3-5,7
Router(config-controller)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/1/1:0,
changed state to down
%LINK-3-UPDOWN: Interface Serial3/1/1:0, changed state to up
Step 6 If IP routing is enabled on the system, assign an IP address and subnet mask to the channel group with the interface and ip address commands as follows:
Router(config-controller)# interface serial 3/1/1:0 Router(config-if)# ip address 10.1.15.1 255.255.255.0 Router(config-if)#
Step 7 Add any additional configuration commands required to enable routing protocols and adjust the interface characteristics.
Step 8 Use the no shutdown and exit commands respectively to reenable the interface and return to configuration mode as follows:
Router(config-if)#no shutdown Router(config-if)# exit Router(config)# %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/1/1:0,
changed state to up %LINK-3-UPDOWN: Interface Serial3/1/1:0, changed state to up
Step 9 Repeat Step 5 through Step 8 for additional channel groups and timeslots.
Step 10 After configuring additional channel groups and timeslots, map all unused timeslots to an unused channel group and shut down the unused channel group by entering the channel-group and shutdown commands, respectively.
In the following example, unused timeslots 2, 6, and 8 through 31 are mapped to unused channel group 1, and channel group 1 is shut down:
Router(config)# controller e1 3/1/1 Router(config-controller)# channel-group 1 timeslots 2,6,8-31
Router(config-controller)# Router(config-controller)# int serial 3/1/1:1 Router(config-if)# shutdown Router(config-if)# exit Router(config)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/1/1:1,
changed state to down
%LINEPROTO-5-UPDOWN: Interface Serial3/1/1:1, changed state to
administratively down
Step 11 After including all of the configuration commands, to complete the configuration, press Ctrl-Z (hold down the Control key while you press Z) or enter end to exit configuration mode and return to the EXEC command interpreter prompt as follows:
Router(config)# Ctrl-Z Router#
Step 12 Write the new configuration to memory as follows:
Router# copy running-config startup-config [OK] Router#
The system displays an OK message when the configuration is stored.
Step 13 Exit the privileged level and return to the user level by entering disable at the prompt as follows:
Router# disable Router>
This completes the procedure for creating a basic channelized E1 configuration. Proceed to the section "Checking the Configuration" to check the interface configuration using show commands. For additional information about configuring channelized E1 interfaces, refer to the publications Wide-Area Networking Configuration Guide and Wide-Area Networking Command Reference.
Following are instructions for a basic channelized E1 ISDN PRI configuration: enabling a controller and specifying IP routing. You might also need to enter other configuration commands depending on the requirements for your system configuration and the protocols you plan to route on the interface. For complete descriptions of configuration commands and the configuration options available, refer to the publications listed in the section ""Related Documentation" section".
The PRI group must be mapped before the 2CE1 controller can be configured (there is only one PRI group for each controller). The following are controller commands used to map the PRI group:
In the following procedure, press the Return key after each configuration step:
Step 1 At the privileged-level prompt, enter configuration mode and specify that the console terminal will be the source of the configuration commands as follows:
Router# configure t
Enter configuration commands, one per line. End with CNTL/Z. Router(config)#
Step 2 Identify the ISDN switch type. In the following example, the switch primary-net5 (a switch for the European Community) is identified as the switch type:
Router(config)# isdn switch-type primary-net5
Step 3 Specify the controller to configure by entering the command controller followed by e1, and chassis slot number/port adapter number/interface port number. The example that follows is for the 2CE1 in chassis slot 3, port adapter slot 1, interface port 1:
Router(config)# controller e1 3/1/1
Step 4 Specify the controller's framing type by entering the framing command as follows:
Router(config-controller)# framing crc4
Step 5 Specify the controller's linecode format by entering the linecode command as follows:
Router(config-controller)# linecode hdb3
Step 6 Map timeslots to the controller's PRI group by entering the pri-group command. The following example shows PRI-group timeslots 1, 3 through 5, and 7 (the B channels) selected and mapped to timeslot 16 (the D channel), which is recognized by the system as timeslot 15:
Router(config-controller)# pri-group timeslots 1,3-5,7
Router(config-controller)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/1/1:15,
changed state to down
%LINK-3-UPDOWN: Interface Serial3/1/1:15, changed state to up
Step 7 If IP routing is enabled on the system, assign an IP address and subnet mask to the PRI group with the interface and ip address commands as follows.
Router(config-controller)# interface serial 3/1/1:15 Router(config-if)# ip address 10.1.15.1 255.255.255.0 Router(config-if)#
Step 8 Add any additional configuration commands required to enable routing protocols and adjust the interface characteristics.
Step 9 Use the no shutdown and exit commands respectively to reenable the interface and return to configuration mode as follows:
Router(config-if)#no shutdown Router(config-if)# exit Router(config)# %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/1/1:15,
changed state to up %LINK-3-UPDOWN: Interface Serial3/1/1:15, changed state to up
Step 10 After configuring the PRI group and timeslots, map all unused timeslots to an unused channel group and shut down the unused channel group by entering the channel-group and shutdown commands, respectively.
In the following example, unused timeslots 2, 6, 8 through 15, and 17 through 31 are mapped to unused channel group 2, and channel group 2 is shut down:
Router(config)# controller e1 3/1/1 Router(config-controller)# channel-group 2 timeslots 2,6,8-15,17-31
Router(config-controller)# Router(config-controller)# interface serial 3/1/1:2 Router(config-if)# shutdown Router(config-if)# exit Router(config)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/1/1:2,
changed state to down
%LINEPROTO-5-UPDOWN: Interface Serial3/1/1:2, changed state to
administratively down
Step 11 After including all of the configuration commands, to complete the configuration, press Ctrl-Z (hold down the Control key while you press Z) or enter end to exit configuration mode and return to the EXEC command interpreter prompt as follows:
Router(config)# Ctrl-Z Router#
Step 12 Write the new configuration to memory as follows:
Router# copy running-config startup-config [OK] Router#
The system displays an OK message when the configuration is stored.
Step 13 Exit the privileged level and return to the user level by entering disable at the prompt as follows:
Router# disable Router>
This completes the procedure for creating a basic channelized E1 ISDN PRI configuration. Proceed to the next section "Checking the Configuration" to check the interface configuration using show commands. For dialer interface configuration and additional channelized E1 ISDN PRI interface configuration information, refer to the publications Wide-Area Networking Configuration Guide and Wide-Area Networking Command Reference.
After configuring the new interface, use the show commands to display the status of the new interface or all interfaces, and use the ping and loopback commands to check connectivity.
The following steps use show commands to verify that the new interfaces are configured and operating correctly:
Step 1 Display the system hardware configuration with the show version command. Ensure that the list includes the new serial interfaces.
Step 2 Display all the current interface processors and their interfaces with the show controllers cbus command. Verify that the new VIP2 appears in the correct slot.
Step 3 Specify one of the new E1 interfaces with the show interfaces type slot/port adapter/interface:channel-group or pri-group command and verify that the first line of the display specifies the interface with the correct slot number. Also verify that the interface and line protocol are in the correct state: up or down.
Step 4 Display the protocols configured for the entire system and specific interfaces with the show protocols command. If necessary, return to configuration mode to add or remove protocol routing on the system or specific interfaces.
Step 5 Display the running configuration file with the show running-config command. Display the configuration stored in NVRAM using the show startup-config command. Verify that the configuration is accurate for the system and each interface.
If the interface is down and you configured it as up, or if the displays indicate that the hardware is not functioning properly, ensure that the network interface is properly connected and terminated. If you still have problems bringing up the interface, contact a customer service representative for assistance.
To display information about a specific interface, use the show interfaces command with the interface type, port adapter, interface, and channel group or PRI group address in the format show interfaces [type slot/port adapter/interface:channel-group or pri-group].
The following example of the show interfaces serial slot/port adapter/port:channel-group command shows all of the information specific to the second 2CE1 interface port (interface port 1) in chassis slot 3, port adapter slot 1, channel group 2:
Router# show interface serial 3/1/1:2
Serial3/1/1:2 is up, line protocol is up
Hardware is cxBus E1
Internet address is 10.1.15.1
MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive set (10 sec)
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions alarm present
Timeslot(s) Used:1-31, Transmitter delay is 0 flags, transmit queue length 0
The following example of the show interfaces serial slot/port adapter/port:pri-group command shows all of the information specific to the same interface port (interface port 1 in chassis slot 3, port adapter slot 1) when the port is configured for ISDN PRI:
Router# show interfaces serial 3/1/1:15
Serial3/1/1:15 is up, line protocol is up (spoofing)
Hardware is cxBus E1
Internet address is 10.1.15.1
MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive set (10 sec)
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions alarm present
Timeslot(s) Used:1-31, Transmitter delay is 0 flags, transmit queue length 0
Router# show version Cisco Internetwork Operating System Software IOS (tm) GS Software (RSP-A), Version 11.1(10)CA Copyright (c) 1986-1996 by cisco Systems, Inc. Compiled Sat 10-Aug-96 17:56 by biff Image text-base: 0x600108A0, data-base: 0x60952000 ROM: System Bootstrap, Version 11.1(5), RELEASE SOFTWARE ROM: GS Software (RSP-BOOT-M), Version 11.1(10)CA, RELEASE SOFTWARE Router uptime is 5 days, 4 minutes System restarted by reload System image file is "rsp-jv-mz", booted via slot0 cisco RSP2 (R4600) processor with 32768K bytes of memory. R4600 processor, Implementation 32, Revision 2.0 Last reset from power-on G.703/E1 software, Version 1.0. Channelized E1, Version 1.0. SuperLAT software copyright 1990 by Meridian Technology Corp). Bridging software. X.25 software, Version 2.0, NET2, BFE and GOSIP compliant. TN3270 Emulation software (copyright 1994 by TGV Inc). Primary Rate ISDN software, Version 1.0. Chassis Interface. 1 EIP controller (6 Ethernet). 1 TRIP controller (4 Token Ring). 2 MIP controllers (4 E1). 1 VIP2 controller (2 E1)(4 Token Ring). 6 Ethernet/IEEE 802.3 interfaces. 8 Token Ring/IEEE 802.5 interfaces. 3 Serial network interfaces. 6 Channelized E1/PRI ports. 125K bytes of non-volatile configuration memory. 8192K bytes of Flash PCMCIA card at slot 0 (Sector size 128K). 8192K bytes of Flash internal SIMM (Sector size 256K). No slave installed in slot 7. Configuration register is 0x0
To display all the ISDN interfaces installed in the router and the ISDN switch type for the interfaces, use the show isdn status command. The following example is for an 2CE1 port adapter in chassis slot 3, port adapter slot 1, with the ISDN switch type primary-net5:
Router# show isdn status
The current ISDN Switchtype = primary-net5
ISDN Serial3/1/0:15 interface
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 0, State = MULTIPLE_FRAME_ESTABLISHED
Layer 3 Status:
No Active Layer 3 Call(s)
Activated dsl 0 CCBs = 0
ISDN Serial3/1/1:15 interface
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 0, State = MULTIPLE_FRAME_ESTABLISHED
Layer 3 Status:
No Active Layer 3 Call(s)
Activated dsl 0 CCBs = 0
Total Allocated ISDN CCBs = 0
(Display text omitted.)
To determine which type of port adapter is installed on a VIP2 in your system, use the show diag slot command. Specific port adapter information is displayed, as shown in the following example of a 2CE1 port adapter in chassis slot 3:
Router# show diag 3
Slot 3:
Physical slot 3, ~physical slot 0x7, logical slot 8, CBus 0
Microcode Status 0xC
Master Enable, LED, WCS Loaded
Board is analyzed
Pending I/O Status: Console I/O
EEPROM format version 1
VIP2 controller, HW rev 2.3, board revision UNKNOWN
Serial number: 03513619 Part number: 73-1684-03
Test history: 0x00 RMA number: 00-00-00
Flags: cisco 7000 board; 7500 compatible
EEPROM contents (hex):
0x20: 01 15 02 03 00 35 9D 13 49 06 94 03 00 00 00 00
0x30: 06 3D 00 2A 1A 00 00 00 00 00 00 00 00 00 00 00
Slot database information:
Flags: 0x4 Insertion time: 0x12A0 (08:56:58 ago)
Controller Memory Size: 8 MBytes
PA Bay 0 Information:
Token Ring PA, 4 ports
EEPROM format version 1
HW rev 1.0, Board revision B0
Serial number: 02825610 Part number: 73-1390-04
PA Bay 1 Information:
Multi-channel (E1) port adapter, 2 ports
EEPROM format version 255
HW rev FF.FF, Board revision UNKNOWN
Serial number: 4294967295 Part number: 255-65535-255
Use the show controllers cbus [type slot/port adapter/interface] command to display the internal status of each installed interface processor and VIP2, including slot locations, hardware versions, and the currently running microcode versions. The show controllers cbus command also lists each interface (port), including logical interface numbers, interface types, physical (slot/port) addresses, and hardware (station address) of each interface, and cable types attached to each interface.
The following example shows a 2CE1 port adapter installed in chassis slot 3:
Router# show controllers cbus
slot3: VIP2, hw 2.2, sw 21.40, ccb 5800FFA0, cmdq 480000C0, vps 8192
software loaded from flash slot0:muck/amcrae/vip2_21-40.mxt
FLASH ROM version 255.255
E1 3/1/1, applique is Channelized E1 - unbalanced
gfreeq 48000138, lfreeq 48000180 (1536 bytes), throttled 0
rxlo 4, rxhi 99, rxcurr 0, maxrxcurr 0
[display text omitted]
Use the show controllers e1 command to display the status of each installed E1 interface. The following example shows the status of a 2CE1 port adapter installed in chassis slot 3 port adapter slot 1 interface port 0:
Router# show controllers e1
E1 3/1/0 is up.
Applique type is Channelized E1 - unbalanced
No far end block errors detected
No alarms detected.
Framing is CRC4, Line Code is HDB3, Clock Source is Line.
Data in current interval (700 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Data in Interval 1:
10 Line Code Violations, 1 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 2 Line Err Secs, 0 Degraded Mins
1 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 1 Unavail Secs
Total Data (last 1 15 minute intervals):
10 Line Code Violations, 1 Path Code Violations,
0 Slip Secs, 0 Fr Loss Secs, 2 Line Err Secs, 0 Degraded Mins,
1 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 1 Unavail Secs
E1 3/1/1 is up.
Applique type is Channelized E1 - unbalanced
No far end block errors detected
No alarms detected.
Framing is CRC4, Line Code is HDB3, Clock Source is Line.
Data in current interval (700 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Data in Interval 1:
10 Line Code Violations, 1 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 2 Line Err Secs, 0 Degraded Mins
1 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 1 Unavail Secs
Total Data (last 1 15 minute intervals):
10 Line Code Violations, 1 Path Code Violations,
0 Slip Secs, 0 Fr Loss Secs, 2 Line Err Secs, 0 Degraded Mins,
1 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 1 Unavail Secs
The packet internet groper (ping) and loopback commands allow you to verify that an interface port is functioning properly and to check the path between a specific port and connected devices at various locations on the network after the system has booted successfully and is operational. This section provides brief descriptions of these commands. Refer to the publications listed in the "Related Documentation" section for detailed command descriptions and examples.
The ping command sends echo request packets out to a remote device at an IP address that you specify. After sending an echo request, the command waits a specified time for the remote device to reply. Each echo reply is displayed as an exclamation point (!) on the console terminal; each request that is not returned before the specified timeout is displayed as a period (.). A series of exclamation points (!!!!!) indicates a good connection; a series of periods (.....) or the messages [timed out] or [failed] indicate that the connection failed.
Following is an example of a successful ping command to a remote server with the address 10.1.1.10:
Router# ping 10.1.1.10 <Return> Type escape sequence to abort. Sending 5, 100-byte ICMP Echoes to 10.1.1.10, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/15/64 ms Router#
If the connection fails, verify that you have the correct IP address for the destination and that the device is active (powered on), and repeat the ping command.
The loopback test allows you to detect and isolate equipment malfunctions by testing the connection between the 2CE1 port adapter interface and a remote device such as a modem or a CSU. The loopback command places an interface in loopback mode, which enables test packets that are generated from the ping command to loop through a remote device or interface cable. If the packets complete the loop, the connection is good. If not, you can isolate a fault to the remote device or interface cable in the path of the loopback test.
When no interface cable is attached to a 2CE1 port adapter interface, issuing the loopback controller command tests the path between the VIP2 and the interface port only (without leaving the VIP2 and port adapter).
For complete descriptions of interface commands and the configuration options available for Cisco 7000 series and Cisco 7500 series-related interfaces, refer to the publications listed in the "Related Documentation" section".
The 2CE1 port adapters are used in the Cisco 7200 series routers and can be installed in any of the available port adapter slots. Figure 23 shows a 2CE1 port adapter installed in port adapter slot 1 of a Cisco 7206.

The following sections include information that is specific to 2CE1 port adapters and their use in the Cisco 7200 series routers:
Depending on your circumstances, you might need to install a new port adapter in a Cisco 7200 series router or replace a failed port adapter in the field. In either case, no tools are necessary; all port adapters available for the Cisco 7200 series connect directly to the router midplane and are locked into position by a port adapter lever. When removing and replacing a port adapter, you will need an antistatic mat onto which you can place a removed port adapter and an antistatic container into which you can place a failed port adapter for shipment back to the factory.
When a port adapter slot is not in use, a blank port adapter must fill the empty slot to allow the router to conform to EMI emissions requirements and to allow proper air flow across the port adapters. If you plan to install a new port adapter in a slot that is not in use, you must first remove a blank port adapter.
Use the following procedure to remove a port adapter from a Cisco 7200 series router:
Step 1 Attach an ESD-preventative wrist strap between you and an unfinished chassis surface.
Step 2 Place the port adapter lever for the desired port adapter slot in the unlocked position. The port adapter lever remains in the unlocked position. (See Figure 24.)

Step 3 Grasp the handle on the port adapter and pull the port adapter from the midplane, about halfway out of its slot. If you are removing a blank port adapter, pull the blank port adapter completely out of the chassis slot.
Step 4 With the port adapter halfway out of the slot, disconnect all cables from the port adapter.
Step 5 After disconnecting the cables, pull the port adapter from its chassis slot.
![]() | Caution Always handle the port adapter by the carrier edges and handle; never touch the port adapter's components or connector pins. (See Figure 25.) |

Step 6 Place the port adapter on an antistatic surface with its components facing upward, or in a static shielding bag. If the port adapter will be returned to the factory, immediately place it in a static shielding bag.
This completes the procedure for removing a port adapter from a Cisco 7200 series router.
Use the following procedure to install a new port adapter in a Cisco 7200 series router:
Step 1 Attach an ESD-preventative wrist strap between you and an unfinished chassis surface.
Step 2 Use both hands to grasp the port adapter by its metal carrier edges and position the port adapter so that its components are downward. (See Figure 25).
Step 3 Align the left and right edge of the port adapter metal carrier between the guides in the port adapter slot. (See Figure 26.)

Step 4 With the metal carrier aligned in the slot guides, gently slide the port adapter halfway into the slot.
![]() | Caution Do not slide the port adapter all the way into the slot until you have connected all required cables. Trying to do so will disrupt normal operation of the router. |
Step 5 With the port adapter halfway in the slot, connect all required cables to the port adapter.
Step 6 After connecting all required cables, carefully slide the port adapter all the way into the slot until you feel the port adapter's make contact with the midplane.
Step 7 After feeling the connectors make contact, move the port adapter lever to the locked position. Figure 27 shows the port adapter lever in the locked position.

This completes the procedure for installing a new port adapter in a Cisco 7200 series router.
On a single 2CE1 port adapter, you can use up to two G.703 serial connections.
Connect a 2CE1 interface cable as follows:
Step 1 Attach the cable directly to the receptacle on the 2CE1 port adapter and tighten the strain-relief screws. (See Figure 28.)

Step 2 Attach the network end of the cable to your Primary Rate Interface (PRI) channel service unit (CSU) and tighten the strain-relief screws.
This completes the procedure for attaching a 2CE1 interface cable.
Depending on the circumstances, you might need to change the configuration of both 2CE1 port adapter interfaces for balanced 120-ohm connections or unbalanced 75-ohm connections.
Configuring 2CE1 port adapter interfaces for balanced 120-ohm or unbalanced 75-ohm connections requires setting ten jumpers on the 2CE1 printed circuit board and attaching the appropriate interface cable (balanced or unbalanced) to both 2CE1 ports. See the "2CE1 Port Adapter Cables and Pinouts" section," for 2CE1 interface cable types.
The following steps explain how to set 2CE1 jumpers for balanced 120-ohm or unbalanced 75-ohm connections.
Both 2CE1 ports must be configured for balanced 120-ohm or unbalanced 75-ohm connections. The 2CE1 port adapters do not support a mixed connection configuration.
Step 1 Attach an ESD-preventive wrist strap between you and an unfinished chassis surface.
Step 2 Remove the installed 2CE1 port adapter from the chassis. See the "Installing or Replacing a Port Adapter in Cisco 7200 Series Routers" for port adapter removal procedures.
Step 3 With the 2CE1 port adapter on an antistatic mat, use a number 1 Phillips screwdriver to remove the three screws that secure the plastic jumper cover to the 2CE1 printed circuit board. (See Figure 29.) Save the screws.

Step 4 Set the ten jumpers on the 2CE1 printed circuit board for balanced 120-ohm or unbalanced 75-ohm interface connections.
Jumper locations J2, J3, J5, J8, J9, J11, J12, and J14 have three pins, and jumper locations J4 and J10 have two pins. Each jumper location is configured by placing an insulated jumper over two pins (leaving the third pin of a three-pin jumper location exposed). In balanced 120-ohm configurations, the insulated jumper covers both pins of jumper locations J4 and J10. In unbalanced 75-ohm configurations, the insulated jumper is not present on jumper locations J4 and J10. Table 5 lists the 2CE1 jumper locations and their settings. Figure 30 and Figure 31 show balanced 120-ohm and unbalanced 75-ohm 2CE1 jumper configurations, respectively.
| Balanced 120-Ohm Configuration | Unbalanced 75-Ohm Configuration | ||
|---|---|---|---|
| Jumper Location | Jumper Setting | Jumper Location | Jumper Setting |
J2 | Right two pins | J2 | Left two pins |
J3 | Right two pins | J3 | Left two pins |
J5 | Right two pins | J5 | Left two pins |
J7 | Left two pins | J7 | Left two pins |
J8 | Right two pins | J8 | Left two pins |
J9 | Right two pins | J9 | Left two pins |
J11 | Right two pins | J11 | Left two pins |
J12 | Right two pins | J12 | Left two pins |
J13 | Left two pins | J13 | Left two pins |
J14 | Right two pins | J14 | Left two pins |
J4 | Present | J4 | Not present |
J10 | Present | J10 | Not present |
J15 | Not present | J15 | Not present |


Step 5 Replace the plastic jumper cover over the 2CE1 jumpers and secure it to the port adapter's printed circuit board using a number 1 Phillips screwdriver and the screws you saved in Step 3.
Step 6 Replace the 2CE1 port adapter in the chassis. See the "Installing or Replacing a Port Adapter in Cisco 7200 Series Routers" section for port adapter replacement procedures.
This completes the procedure for configuring 2CE1 port adapter jumpers. Use the show controllers e1 [port adapter slot number/interface port number] command to identify the E1 cable type (balanced or unbalanced) attached to the 2CE1. Following is an example of the show controllers e1 command that shows an E1 interface port (1/0) with an unbalanced cable attached:
Router# show controllers e1 1/0
E1 1/0 is up.
Applique type is Channelized E1 - unbalanced
No far end block errors detected
No alarms detected.
Framing is CRC4, Line Code is HDB3, Clock Source is Line.
Data in current interval (710 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Data in Interval 1:
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
[display text omitted]
You can modify the configuration of your router through the software command interpreter called the EXEC. You must enter the privileged level of the EXEC command interpreter with the enable command before you can use the configure command to configure a new interface or to change the existing configuration of an interface. The system will prompt you for a password if one has been set.
The system prompt for the privileged level ends with a pound sign (#) instead of an angle bracket (>). At the console terminal, enter the privileged level as follows:
Step 1 At the user-level EXEC prompt, enter the enable command. The EXEC prompts you for a privileged-level password, as follows:
Router> enable
Password:
Step 2 Enter the password (the password is case sensitive). For security purposes, the password is not displayed.
When you enter the correct password, the system displays the privileged-mode system prompt (#) as follows:
Router#
Proceed to the following section to configure the new interfaces.
If you installed a new 2CE1 port adapter or if you want to change the configuration of an existing interface, you must use the privileged-level configure command. If you replaced a 2CE1 port adapter that was previously configured, the system will recognize the new 2CE1 port adapter interfaces and bring each of them up in their existing configuration.
After you verify that the new 2CE1 port adapter is installed correctly (the enabled LED goes on), use the configure command to configure the new interfaces. Be prepared with the information you will need, such as the following:
| Keywords by Area | Switch Type |
|---|---|
Australia
|
Australian TS013 switches |
Europe
|
German 1TR6 ISDN switches |
Japan
|
Japanese NTT ISDN switches |
North America
|
AT&T basic rate switches |
New Zealand
|
New Zealand NET3 switches |
For complete descriptions of interface commands and the configuration options available for Cisco 7200 series-related interfaces, refer to the publications listed in the "Related Documentation" section.
This section describes how to identify port adapter slot and 2CE1 port adapter interface numbers.
Physical port addresses specify the actual physical location of each interface port on the router. (See Figure 32.) This address is composed of a two-part number in the format port adapter slot number/interface port number, as follows:
Interface ports on 2CE1 port adapters maintain the same address regardless of whether other port adapters are installed or removed. However, when you move a port adapter to a different slot, the first number in the address changes to reflect the new slot number.
Figure 32 shows the interface ports of a 2CE1 port adapter in slot 1 of a Cisco 7206 router. The individual interface port numbers always begin with 0. The number of additional ports depends on the number of ports on a port adapter. Port adapters can occupy any port adapter slot. There are no restrictions.
For example, the addresses of the interface ports on the 2CE1 port adapter in chassis slot 1 are 1/0 and 1/1 (chassis slot 1 and interface ports 0 and 1). If the 2CE1 port adapter was in port adapter slot 4, these same interface ports would be numbered 4/0 and 4/1.

You can identify interface ports by physically checking the port adapter slot/interface port location on the front of the router or by using software commands to display information about a specific interface or all interfaces in the router.
Before you replace an interface cable, replace port adapters, or remove an interface that you will not replace, use the shutdown command to shut down (disable) the interfaces to prevent anomalies when you reinstall the new or reconfigured port adapters. You can shut down all 30 interfaces of a controller by specifying the controller before issuing the shutdown command.You can shut down individual interfaces of a controller by specifying the channel group or PRI group assigned to each controller (channel groups and PRI groups are treated as serial interfaces by the system). When you shut down an interface, it is designated administratively down in the show command displays.
Follow these steps to shut down an interface:
Step 1 Enter the privileged level of the EXEC command interpreter. (See the "Using the EXEC Command Interpreter" section for instructions.)
Step 2 At the privileged-level prompt, enter configuration mode and specify that the console terminal will be the source of the configuration commands as follows:
Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#
Step 3 Specify the slot/port address of the controller that you want shut down by entering the command controller, followed by the type (e1) and port adapter slot number/interface port number. The example that follows is for a 2CE1 in chassis slot 1:
Router(config)# controller e1 1/0
Step 4 Enter the shutdown command as follows:
Router(config-cont)# shutdown
Step 5 To shut down existing individual controller interfaces, enter the slot/port:channel-group or pri-group address of each interface followed by the shutdown command. When you have entered all the interfaces to be shut down, press Ctrl-Z (hold down the Control key while you press Z) to exit configuration mode and return to the EXEC command interpreter prompt as follows:
Router(config)# interfaces serial 1/0:0 Router(config-if)# shutdown Ctrl-Z Router#
Step 6 Write the new configuration to memory as follows:
Router# copy running-config startup-config [OK] Router#
The system displays an OK message when the configuration has been stored.
Step 7 To verify that new interfaces are now in the correct state (shutdown), use the show interfaces serial port adapter slot number/interface port number:channel-group or pri-group command to display the specific interface, or use the show controllers command, followed by the type (e1) and port adapter slot number/interface port number, to display the status of all interfaces of the controller.
Router# show interfaces serial 1/0:0 Serial1/0:0 is down, line protocol is down Hardware is MPA-E1 [display text omitted]
Step 8 To reenable the interfaces, repeat the above steps, but use the no shutdown command in Step 4; then write the new configuration to memory as follows:
Router(config)# interfaces serial 1/0:0 Router(config-if)# no shutdown Ctrl-Z Router# Router# copy running-config startup-config [OK] Router# show interfaces serial 1/0:0 Serial1/0:0 is up, line protocol is up Hardware is MPA-E1 [display text omitted]
For complete descriptions of software configuration commands, refer to the publications listed in the section "Related Documentation" section.
Following are instructions for a basic channelized E1 configuration: enabling a controller and specifying IP routing. You might also need to enter other configuration commands depending on the requirements for your system configuration and the protocols you plan to route on the interface. For complete descriptions of configuration commands and the configuration options available, refer to the publications listed in the "Related Documentation" section.
The channel groups must be mapped before the 2CE1 controller can be configured. The following are controller commands used to map the channel group (the default variable is listed first):
In the following procedure, press the Return key after each configuration step.
Step 1 At the privileged-mode prompt, enter configuration mode and specify that the console terminal will be the source of the configuration commands as follows:
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z. Router(config)#
Step 2 At the prompt, specify the controller to configure by entering the command controller, followed by e1, and port adapter slot number/interface port number. The example that follows is for the 2CE1 in port adapter slot 1, interface port 1:
Router(config)# controller e1 1/1
Step 3 Specify the controller's framing type by entering the framing command as follows:
Router(config-controller)# framing crc4
Step 4 Specify the controller's linecode format by entering the linecode command as follows:
Router(config-controller)# linecode hdb3
Step 5 Specify a channel group and map timeslots to the channel group by entering the channel-group command. The following example specifies channel group 0 and maps timeslots 1, 3 through 5, and 7 to channel group 0:
Router(config-controller)# channel-group 0 timeslots 1,3-5,7
Router(config-controller)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/1:0,
changed state to down
%LINK-3-UPDOWN: Interface Serial1/1:0, changed state to up
Step 6 If IP routing is enabled on the system, assign an IP address and subnet mask to the channel group with the interface and ip address commands as follows:
Router(config-controller)# interfaces serial 1/1:0 Router(config-if)# ip address 10.1.15.1 255.255.255.0 Router(config-if)#
Step 7 Add any additional configuration commands required to enable routing protocols and adjust the interface characteristics.
Step 8 Use the no shutdown and exit commands respectively to reenable the interface and return to configuration mode as follows:
Router(config-if)#no shutdown Router(config-if)# exit Router(config)# %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/1:0,
changed state to up %LINK-3-UPDOWN: Interface Serial1/1:0, changed state to up
Step 9 Repeat Step 5 through Step 8 for additional channel groups and timeslots.
Step 10 After configuring additional channel groups and timeslots, map all unused timeslots to an unused channel group and shut down the unused channel group by entering the channel-group and shutdown commands, respectively.
In the following example, unused timeslots 2, 6, and 8 through 31 are mapped to unused channel group 1, and channel group 1 is shut down:
Router(config)# controller e1 1/1 Router(config-controller)# channel-group 1 timeslots 2,6,8-31
Router(config-controller)# Router(config-controller)# interfaces serial 1/1:1 Router(config-if)# shutdown Router(config-if)# exit Router(config)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/1:1,
changed state to down
%LINEPROTO-5-UPDOWN: Interface Serial1/1:1, changed state to
administratively down
Step 11 After including all of the configuration commands, to complete the configuration, press Ctrl-Z (hold down the Control key while you press Z) or enter end to exit configuration mode and return to the EXEC command interpreter prompt as follows:
Router(config)# Ctrl-Z Router#
Step 12 Write the new configuration to memory as follows:
Router# copy running-config startup-config [OK] Router#
The system displays an OK message when the configuration is stored.
Step 13 Exit the privileged level and return to the user level by entering disable at the prompt as follows:
Router# disable Router>
This completes the procedure for creating a basic channelized E1 configuration. Proceed to the "Checking the Configuration" section" to check the interface configuration using show commands. For additional information about configuring channelized E1 interfaces, refer to the publications Wide-Area Networking Configuration Guide and Wide-Area Networking Command Reference.
Following are instructions for a basic channelized E1 ISDN PRI configuration: enabling a controller and specifying IP routing. You might also need to enter other configuration commands depending on the requirements for your system configuration and the protocols you plan to route on the interface. For complete descriptions of configuration commands and the configuration options available, refer to the publications listed in the "Related Documentation" section.
The PRI group must be mapped before the 2CE1 controller can be configured (there is only one PRI group for each controller). The following are controller commands used to map the PRI group:
In the following procedure, press the Return key after each configuration step.
Step 1 At the privileged-mode prompt, enter configuration mode and specify that the console terminal will be the source of the configuration commands as follows:
Router# configure t
Enter configuration commands, one per line. End with CNTL/Z. Router(config)#
Step 2 Identify the ISDN switch type. In the following example, the switch primary-net5 (a switch for the European Community) is identified as the switch type:
Router(config)# isdn switch-type primary-net5
Step 3 Specify the controller to configure by entering the command controller, followed by e1, and port adapter slot number/interface port number. The example that follows is for the 2CE1 in port adapter slot 1, interface port 1:
Router(config)# controller e1 1/1
Step 4 Specify the controller's framing type by entering the framing command as follows:
Router(config-controller)# framing crc4
Step 5 Specify the controller's linecode format by entering the linecode command as follows:
Router(config-controller)# linecode hdb3
Step 6 Map timeslots to the controller's PRI group by entering the pri-group command. The following example shows PRI-group timeslots 1, 3 through 5, and 7 (the B channels) selected for mapped to timeslot 16 (the D channel), which is recognized by the system as timeslot 15.
Router(config-controller)# pri-group 0 timeslots 1,3-5,7
Router(config-controller)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/1:15,
changed state to down
%LINK-3-UPDOWN: Interface Serial1/1:15, changed state to up
Step 7 If IP routing is enabled on the system, assign an IP address and subnet mask to the PRI group with the interface and ip address commands as follows.
Router(config-controller)# interface serial 1/1:15 Router(config-if)# ip address 10.1.15.1 255.255.255.0 Router(config-if)#
Step 8 Add any additional configuration commands required to enable routing protocols and adjust the interface characteristics.
Step 9 Use the no shutdown and exit commands respectively to reenable the interface and return to configuration mode as follows:
Router(config-if)#no shutdown Router(config-if)# exit Router(config)# %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/1:15,
changed state to up %LINK-3-UPDOWN: Interface Serial1/1:15, changed state to up
Step 10 After configuring the PRI group and timeslots, map all unused timeslots to an unused channel group and shut down the unused channel group by entering the channel-group and shutdown commands, respectively.
In the following example, unused timeslots 2, 6, 8 through 15, and 17 through 31 are mapped to unused channel group 2, and channel group 2 is shut down:
Router(config)# controller e1 1/1 Router(config-controller)# channel-group 2 timeslots 2,6,8-15,17-31
Router(config-controller)# Router(config-controller)# interface serial 1/1:2 Router(config-if)# shutdown Router(config-if)# exit Router(config)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/1:2,
changed state to down
%LINEPROTO-5-UPDOWN: Interface Serial1/1:2, changed state to
administratively down
Step 11 After including all of the configuration commands, to complete the configuration, press Ctrl-Z (hold down the Control key while you press Z) or enter end to exit configuration mode and return to the EXEC command interpreter prompt as follows:
Router(config)# Ctrl-Z Router#
Step 12 Write the new configuration to memory as follows:
Router# copy running-config startup-config [OK] Router#
The system displays an OK message when the configuration is stored.
Step 13 Exit the privileged level and return to the user level by entering disable at the prompt as follows:
Router# disable Router>
This completes the procedure for creating a basic channelized E1 ISDN PRI configuration. Proceed to the next section "Checking the Configuration" to check the interface configuration using show commands. For dialer interface configuration and additional channelized E1 ISDN PRI interface configuration information, refer to the publications Wide-Area Networking Configuration Guide and Wide-Area Networking Command Reference.
After configuring the new interface, use the show commands to display the status of the new interface or all interfaces, and use the ping and loopback commands to check connectivity.
The following steps use show commands to verify that the new interfaces are configured and operating correctly:
Step 1 Display the system hardware configuration with the show version command. Ensure that the list includes the new serial interfaces.
Step 2 Display all the current interface processors and their interfaces with the show controllers command.
Step 3 Specify one of the new E1 interfaces with the show interfaces type port adapter slot/interface port number:channel-group or pri-group command and verify that the first line of the display specifies the interface with the correct slot number. Also verify that the interface and line protocol are in the correct state: up or down.
Step 4 Display the protocols configured for the entire system and specific interfaces with the show protocols command. If necessary, return to configuration mode to add or remove protocol routing on the system or specific interfaces.
Step 5 Display the running configuration file with the show running-config command. Display the configuration stored in NVRAM using the show startup-config command. Verify that the configuration is accurate for the system and each interface.
If the interface is down and you configured it as up, or if the displays indicate that the hardware is not functioning properly, ensure that the network interface is properly connected and terminated. If you still have problems bringing up the interface, contact a customer service representative for assistance.
To display information about a specific interface, use the show interfaces command with the interface type, port adapter slot, interface port, and channel group or PRI group address in the format show interfaces [type port adapter slot/interface port:channel-group or pri-group].
The following example of the show interfaces serial port adapter slot number/interface port number:channel-group command shows all of the information specific to the second 2CE1 interface port (interface port 1) in port adapter slot 1, channel group 0:
Router# show interfaces serial 1/1:0
Serial1/1:0 is up, line protocol is up
Hardware is MPA-E1
Internet address is 10.1.15.1
MTU 1500 bytes, BW 1984 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set
Last input 00:00:42, output 00:00:56, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0 (size/max/drops); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/64/0 (size/threshold/drops)
Conversations 0/1 (active/max active)
Reserved Conversations 0/0 (allocated/max allocated)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
149 packets input, 40207 bytes, 0 no buffer
Received 298 broadcasts, 0 runts, 0 giants
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
128 packets output, 44416 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
20 carrier transitions no alarm present
Timeslot(s) Used:1-31, subrate: 64Kb/s, transmit delay is 0 flags
The following example of the show interfaces serial port adapter slot number/interface port number:pri-group command shows all of the information specific to the same interface (interface port 1 in port adapter slot 1) when the interface is configured for ISDN PRI:
Router# show interfaces serial 1/1:15
Serial1/1:15 is up, line protocol is up (spoofing)
Hardware is MPA-E1
Internet address is 10.1.15.1
MTU 1500 bytes, BW 1984 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set
Last input 00:00:42, output 00:00:56, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0 (size/max/drops); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/64/0 (size/threshold/drops)
Conversations 0/1 (active/max active)
Reserved Conversations 0/0 (allocated/max allocated)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
149 packets input, 40207 bytes, 0 no buffer
Received 298 broadcasts, 0 runts, 0 giants
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
128 packets output, 44416 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
20 carrier transitions no alarm present
Timeslot(s) Used:1-31, subrate: 64Kb/s, transmit delay is 0 flags
Use the show controllers e1 [port adapter slot number/interface port number] command to identify the E1 cable type (balanced or unbalanced) attached to a 2CE1 port adapter that is configured for channelized E1. Following is an example of the show controllers e1 command that shows a channelized E1 interface port (1/0) with an unbalanced cable attached:
Router# show controllers e1 1/0
E1 1/0 is up.
Applique type is Channelized E1 - unbalanced
No far end block errors detected
No alarms detected.
Framing is CRC4, Line Code is HDB3, Clock Source is Line.
Data in current interval (710 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Data in Interval 1:
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
[display text omitted]
Following is an example of the show controllers e1 command that shows an E1 interface port (1/0) that is configured for ISDN PRI:
Router# show controllers e1 1/0
E1 1/0 is up.
No alarms detected.
No far end block errors detected
Framing is CRC4, Line Code is HDB3, Clock Source is Line.
Data in current interval (710 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Data in Interval 1:
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
[display text omitted]
To display all the ISDN interfaces installed in the router and the ISDN switch type for the interfaces, use the show isdn status command. The following example is for an 2CE1 port adapter in port adapter slot 1, with the ISDN switch type primary-net5:
Router# show isdn status
The current ISDN Switchtype = primary-net5
ISDN Serial1/0:15 interface
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 0, State = MULTIPLE_FRAME_ESTABLISHED
Layer 3 Status:
No Active Layer 3 Call(s)
Activated dsl 0 CCBs = 0
ISDN Serial1/1:15 interface
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 0, State = MULTIPLE_FRAME_ESTABLISHED
Layer 3 Status:
No Active Layer 3 Call(s)
Activated dsl 1 CCBs = 0
Total Allocated ISDN CCBs = 0
(Display text omitted.)
Router# show version Cisco Internetwork Operating System Software IOS (tm) 7200 Software (C7200-J-M), Version 11.1(9)CA1 Copyright (c) 1986-1996 by cisco Systems, Inc. Compiled Sun 04-Aug-96 06:00 by biff Image text-base: 0x600088A0, data-base: 0x605A4000 ROM: System Bootstrap, Version 11.1(5) RELEASED SOFTWARE ROM: 7200 Software (C7200-BOOT-M), RELEASED SOFTWARE 11.1(9)CA1 Router uptime is 4 hours, 22 minutes System restarted by reload System image file is "c7200-j-mz", booted via slot0 cisco 7206 (NPE150) processor with 12288K/4096K bytes of memory. R4700 processor, Implementation 33, Revision 1.0 (Level 2 Cache) Last reset from power-on Bridging software. Channelized E1, Version 1.0. SuperLAT software copyright 1990 by Meridian Technology Corp. X.25 software, Version 2.0, NET2, BFE and GOSIP compliant. TN3270 Emulation software (copyright 1994 by TGV INC). Primary Rate ISDN software, Version 1.0. Chassis Interface. 4 Ethernet/IEEE 802.3 interfaces. 1 FastEthernet/IEEE 802.3 interface. 4 Token Ring /IEEE802.5 interfaces. 12 Serial network interfaces. 2 Channelized E1/PRI ports. 125K bytes of non-volatile configuration memory. 1024K bytes of packet SRAM memory. 20480K bytes of Flash PCMCIA card at slot 0 (Sector size 128K). 8192K bytes of Flash internal SIMM (Sector size 256K).
To determine which type of port adapter is installed in your system, use the show diag slot command. Specific port adapter information is displayed, as shown in the following example of a 2CE1 port adapter in chassis slot 1:
Router# show diag 1
Slot 1:
Channelized E1 port adapter, 2 ports
Port adapter is analyzed
Port adapter insertion time 02:18:20 ago
Hardware revision 255.255 Board revision UNKNOWN
Serial number 4294967295 Part number 255-65535-255
Test history 0xFF RMA number 255-255-255
EEPROM format version 255
EEPROM contents (hex):
0x20: FF 06 FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0x30: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
For command descriptions and examples for Cisco 7200 series routers, refer to the publications listed in the "Related Documentation" section.
The packet internet groper (ping) and loopback commands allow you to verify that an interface port is functioning properly and to check the path between a specific port and connected devices at various locations on the network after the system has booted successfully and is operational. This section provides brief descriptions of these commands. Refer to the publications listed in the "Related Documentation" section, for detailed command descriptions and examples.
The ping command sends echo request packets out to a remote device at an IP address that you specify. After sending an echo request, the command waits a specified time for the remote device to reply. Each echo reply is displayed as an exclamation point (!) on the console terminal; each request that is not returned before the specified timeout is displayed as a period (.). A series of exclamation points (!!!!!) indicates a good connection; a series of periods (.....) or the messages [timed out] or [failed] indicate that the connection failed.
Following is an example of a successful ping command to a remote server with the address 10.1.1.10:
Router# ping 1.1.1.10 <Return> Type escape sequence to abort. Sending 5, 100-byte ICMP Echoes to 10.1.1.10, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/15/64 ms Router#
If the connection fails, verify that you have the correct IP address for the destination and that the device is active (powered on), and repeat the ping command.
The loopback test allows you to detect and isolate equipment malfunctions by testing the connection between a 2CE1 port adapter interface and a remote device such as a modem or a CSU. The loopback command places an interface in loopback mode, which enables test packets that are generated from the ping command to loop through a remote device or interface cable. If the packets complete the loop, the connection is good. If not, you can isolate a fault to the remote device or interface cable in the path of the loopback test.
When no interface cable is attached to a 2CE1 port adapter interface, issuing the loopback controller command tests the path between the network processing engine and the interface port only (without leaving the network processing engine and port adapter).
For complete descriptions of interface commands and the configuration options available for Cisco 7200 series-related interfaces, refer to the publications listed in the section "Related Documentation" on page 2.
Cisco Connection Online (CCO) is Cisco Systems' primary, real-time support channel. Maintenance customers and partners can self-register on CCO to obtain additional information and services.
Available 24 hours a day, 7 days a week, CCO provides a wealth of standard and value-added services to Cisco's customers and business partners. CCO services include product information, product documentation, software updates, release notes, technical tips, the Bug Navigator, configuration notes, brochures, descriptions of service offerings, and download access to public and authorized files.
CCO serves a wide variety of users through two interfaces that are updated and enhanced simultaneously: a character-based version and a multimedia version that resides on the World Wide Web (WWW). The character-based CCO supports Zmodem, Kermit, Xmodem, FTP, and Internet e-mail, and it is excellent for quick access to information over lower bandwidths. The WWW version of CCO provides richly formatted documents with photographs, figures, graphics, and video, as well as hyperlinks to related information.
You can access CCO in the following ways:
For a copy of CCO's Frequently Asked Questions (FAQ), contact cco-help@cisco.com. For additional information, contact cco-team@cisco.com.
Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM, a member of the Cisco Connection Family, is updated monthly. Therefore, it might be more current than printed documentation. To order additional copies of the Documentation CD-ROM, contact your local sales representative or call customer service. The CD-ROM package is available as a single package or as an annual subscription. You can also access Cisco documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com.
If you are reading Cisco product documentation on the World Wide Web, you can submit comments electronically. Click Feedback in the toolbar and select Documentation. After you complete the form, click Submit to send it to Cisco. We appreciate your comments.

![]()
![]()
![]()
![]()
![]()
![]()
![]()
Posted: Mon Jul 12 15:10:36 PDT 1999
Copyright 1989-1999©Cisco Systems Inc.