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To continue your multichannel DS1/PRI port adapter installation, you must configure the DS1/PRI interfaces. The instructions that follow apply to all supported platforms. Minor differences among the platforms—with Cisco IOS software commands—are noted.
This chapter contains the following sections:
You modify the configuration of your router through the software command interpreter called the EXEC (also called enable mode). 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 is 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:
Router> enable
Password:
Step 2 Enter the password (the password is case sensitive). For security purposes, the password is not displayed.
Step 3 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.
After you verify that the new multichannel DS1/PRI port adapter is installed correctly (the ENABLED LED goes on), use the privileged-level configure command to configure the new interfaces. Have the following information available:
| Keywords by Area | Switch Type |
|---|---|
Australia
|
Australian TS013 switches |
Europe
|
German 1TR6 ISDN switches |
Japan
|
Japanese NTT ISDN switches |
North America
|
Lucent basic rate switches |
New Zealand
|
New Zealand NET3 switches |
If you installed a new multichannel DS1/PRI or if you want to change the configuration of an existing interface, you must enter configuration mode to configure the new interfaces. If you replaced a multichannel DS1/PRI that was previously configured, the system recognizes the new interfaces and brings each of them up in their existing configuration.
For a summary of the configuration options available and instructions for configuring interfaces on a multichannel DS1/PRI, refer to the appropriate configuration publications listed in the "Related Documentation" section.
You execute configuration commands from the privileged level of the EXEC command interpreter, which usually requires password access. Contact your system administrator, if necessary, to obtain password access. (See the "Using the EXEC Command Interpreter" section for an explanation of the privileged level of the EXEC.)
This section contains the following subsections:
Following are instructions for a basic configuration: enabling an interface and specifying IP routing. You might also need to enter other configuration subcommands, depending on the requirements for your system configuration and the protocols you plan to route on the interface. For complete descriptions of configuration subcommands and the configuration options available for serial interfaces, refer to the appropriate software documentation.
In the following procedure, press the Return key after each step unless otherwise noted. At any time you can exit the privileged level and return to the user level by entering disable at the prompt as follows:
Router# disable Router>
Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#
Step 2 Specify the first interface to configure by entering the interface serial subcommand, followed by the interface address of the interface you plan to configure. Table 4-2 provides examples.
| Platform | Command | Example |
|---|---|---|
Catalyst RSM/VIP2 in Catalyst 5000 family switches | interface serial, followed by slot/port (port-adapter-slot-number/ | The example is for the first interface of a port adapter in port adapter slot 0. Router(config)# interface serial 0/0:0 Router(config-if)# |
Catalyst 6000 family FlexWAN module in Catalyst 6000 family switches | interface serial, followed by mod_num/bay/port (module-slot-number/ | The example is for the first interface of a port adapter in port adapter bay 0 of a FlexWAN module in module slot 3. Router(config)# interface serial 3/0/0:0 Router(config-if)# |
Cisco 7200 series routers | interface serial, followed by slot/port (port-adapter-slot-number/ | The example is for the first interface of a port adapter in port adapter slot 6. Router(config)# interface serial 6/0:0 Router(config-if)# |
Cisco uBR7223 router | interface serial, followed by slot/port (port-adapter-slot-number/ | The example is for the first interface of a port adapter in port adapter slot 1. Router(config)# interface serial 1/0:0 Router(config-if)# |
Cisco uBR7246 router | interface serial, followed by slot/port (port-adapter-slot-number/ | The example is for the first interface of a port adapter in port adapter slot 2. Router(config)# interface serial 2/0:0 Router(config-if)# |
VIP2 or VIP4 in Cisco 7000 series and Cisco 7500 series routers | interface serial, followed by slot/port adapter/port (interface-processor-slot-number/ | The example is for the first interface of a port adapter in port adapter slot 1 of a VIP2 or VIP4 in interface processor slot 1. Router(config)# interface serial 1/1/0:0 Router(config-if)# |
Step 3 Assign an IP address and subnet mask to the interface with the ip address configuration subcommand, as in the following example:
Router(config-if)# ip address 1.1.15.1 255.255.255.0 Router(config-if)#
Step 4 Add any other interface subcommands required to enable routing protocols and adjust the interface characteristics.
Step 5 After including all of the configuration subcommands to complete your configuration, press Ctrl-Z—hold down the Control key while you press Z—or enter end or exit to exit configuration mode.
Step 6 Write the new configuration to NVRAM as follows:
Router# copy running-config startup-config [OK] Router#
This completes the procedure for creating a basic configuration.
The following steps make up a basic controller configuration for the multichannel DS1/PRI port adapter on each platform:
Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#
Step 2 Choose a T1 controller by entering the controller t1 subcommand, followed by the interface address of the interface you plan to configure. Table 4-3 provides examples.
| Platform | Command | Example |
|---|---|---|
Catalyst RSM/VIP2 in Catalyst 5000 family switches | controller t1, followed by slot/port (port-adapter- | The example is for the first interface of a port adapter in port adapter slot 0. Router(config)# controller t1 0/0:0 Router(config-controller)# |
Catalyst 6000 family FlexWAN module in Catalyst 6000 family switches | controller t1, followed by mod_num/bay/port (module-slot-number/ | The example is for the first interface of a port adapter in port adapter bay 0 of a FlexWAN module in module slot 3. Router(config)# controller t1 3/0/0:0 Router(config-controller)# |
Cisco 7200 series routers | controller t1, followed by slot/port (port-adapter- | The example is for the first interface of a port adapter in port adapter slot 6. Router(config)# controller t1 6/0:0 Router(config-controller)# |
Cisco uBR7223 router | controller t1, followed by slot/port (port-adapter- | The example is for the first interface of a port adapter in port adapter slot 1. Router(config)# controller t1 1/0:0 Router(config-controller)# |
Cisco uBR7246 router | controller t1, followed by slot/port (port-adapter- | The example is for the first interface of a port adapter in port adapter slot 2. Router(config)# controller t1 2/0:0 Router(config-controller)# |
VIP2 or VIP4 in Cisco 7000 series and Cisco 7500 series routers | controller t1, followed by slot/port adapter/port (interface-processor-slot-number/ | The example is for the first interface of a port adapter in port adapter slot 1 of a VIP2 or VIP4 in interface processor slot 1. Router(config)# controller t1 1/1/0:0 Router(config-controller)# |
Step 3 In controller configuration mode, enter the framing [SF | ESF] configuration subcommand to set the framing format, as in the following example:
Router(config-controller)# framing esf
Use the no form of this command to restore the default, SF.
Step 4 Enter the clock source [internal | line] configuration subcommand to set the clock source, as in the following example:
Router(config-controller)# clock source internal
Use the no form of this command to restore the default, line.
Step 5 Enter the channel-group number time slots value [speed {56 | 64}] configuration subcommand to set the channel group, as in the following example:
Router(config-controller)# channel-group 0 timeslots 1-24 speed 56
 |
Note When the multichannel DS1/PRI port adapter is being used with AMI encoding, it must be configured as 64k or invert data mode. |
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Note The channel-group number can be from 0 to 23 and the time slot value can be from 1 to 24. The maximum number of channel groups per each 8-port multichannel DS1/PRI port adapter is 128. |
Step 6 Enter the pri-group time slots value configuration subcommand to set the pri group, as in the following example:
Router(config-controller)# pri-group timeslots 1-24
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Note The channel-group number can be from 0 to 23 and the time slot value can be from 1 to 24. |
Step 7 Enter the description line up to 80 characters describing this controller configuration subcommand to set the description, as in the following example:
Router(config-controller)# description Arizona 3 Router; location: building 2
Step 8 Enter the cablelength {long [gain26 | gain36] [0db | -7.5db | -15db | -22.5db]} configuration subcommand to set the cable length, as in the following example:
Router(config-controller)# cablelength long gain26 -15db
Enter the no form of this command to restore the default, gain 36, 0 dB.
For the PA-MC-8DSX1 port adapter, set the cable length by entering the cablelength {short [133 |
266 | 399 | 533 | 655]} command, as in the following example:
Router(config-controller)# cablelength short 266
Use the no form of this command to return to the default, 133. The range of values for the short-haul cable lengths is from 0 to 655 feet.
Step 9 Enter the fdl {att | ansi} configuration subcommand to set the facilities data link (fdl), as in the following example:
Router(config-controller)# fdl ansi
Use the no form of this command to disable fdl.
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Note The fdl configuration subcommand is not allowed in sf mode. |
Step 10 Enter the shutdown configuration subcommand to shut down the controller, as in the following example:
Router(config-controller)# shutdown
To exit controller configuration mode and return to global configuration mode, enter the exit command. To exit configuration mode and return to privileged EXEC mode, use the end command or press Ctrl-Z.
The following steps make up a basic interface configuration for the multichannel DS1/PRI port adapter:
Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#
Step 2 Specify the interface to configure by entering the interface serial subcommand, followed by the interface address of the interface you plan to configure. Table 4-2 provides examples.
Step 3 Set the encapsulation used by the interface by entering the encapsulation {frame-relay | hdlc |
ppp | smds | x25} configuration subcommand, as in the following example:
Router(config-if)# encapsulation ppp
Step 4 In interface configuration mode, set the description by entering the description line up to 80 characters describing this controller configuration subcommand, as in the following example:
Router(config-if)# description PPP channel 5
Step 5 Configure additional interfaces as required.
Step 6 When you have included all of the configuration subcommands to complete the configuration, press Ctrl-Z to exit configuration mode.
Step 7 Write the new configuration to NVRAM as follows:
Router# copy running-config startup-config [OK] Router#
To check the interface configuration using show commands, proceed to the "Checking the Configuration" section .
Table 4-4 summarizes cyclic redundancy check (CRC) commands. For more information, see the remainder of this section.
| Purpose | Command | Example | Further Information |
|---|---|---|---|
Enable 32-bit CRC. | crc size | The example enables 32-bit CRC on a serial interface: Router(config)# interface serial 3/0:0 Router(config-if)# crc 32 | |
Return to default 16-bit CRC. | no crc size | The example disables 32-bit CRC on a serial interface and returns to the default 16-bit CRC: Router(config)# interface serial 3/0:0 Router(config-if)# no crc 32 |
CRC is an error-checking technique that uses a calculated numeric value to detect errors in transmitted data. All interfaces use a 16-bit CRC (CRC-CITT) by default but also support a 32-bit CRC. The sender of a data frame calculates the frame check sequence (FCS). Before it sends a frame, the sender appends the FCS value to the message. The receiver recalculates the FCS and compares its calculation to the FCS from the sender. If there is a difference between the two calculations, the receiver assumes that a transmission error occurred and sends a request to the sender to resend the frame.
Enable 32-bit CRC using the crc 32 command. Before you can enable 32-bit CRC, you must use the interface serial command (followed by the interface address of the interface) to select the interface on which you want to enable 32-bit CRC. This command functions in the same way on all supported platforms.
In the example that follows, 32-bit CRC is specified:
Router(config-if)# crc 32
The preceding command example applies to all systems in which the multichannel DS1/PRI port adapter is supported. Use the no crc 32 command to disable 32-bit CRC and return the interface to the default 16-bit CRC (CRC-CITT) setting.
When you have finished, press Ctrl-Z—hold down the Control key while you press Z—or enter end or exit to exit configuration mode and return to the EXEC command interpreter prompt. Then write the new configuration to NVRAM using the copy running-config startup-config command.
For command descriptions, refer to the Configuration Fundamentals Configuration Guide publication. For more information, see the "Cisco Connection Online" section and the "Documentation CD-ROM" section.
To check the interface configuration using show commands, proceed to the "Checking the Configuration" section .
You can customize the DS1/PRI port adapter. The features you can customize have default values that will probably suit your environment and not need to be changed. However, you might need to enter configuration commands, depending on the requirements for your system configuration and the protocols you plan to route on the interface. Perform the tasks in the following sections if you need to customize the DS1/PRI port adapter:
Following are instructions for a basic multichannel T1 configuration (enabling a controller and specifying IP routing). You might also need to enter other configuration subcommands, depending on the requirements for your system configuration and the protocols you plan to route on the interface. For complete descriptions of configuration subcommands and the configuration options available, refer to the publications listed in the "Related Documentation" section.
The channel groups must be mapped before the multichannel DS1/PRI 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:
Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)#
Step 2 Choose a T1 controller by entering the controller t1 subcommand, followed by the interface address of the interface you plan to configure. Table 4-3 provides examples.
Step 3 At the prompt, specify the clock source for the controller. The clock source command determines which end of the circuit provides the clocking signal.
Router(config-controller)# clock source line
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Note You can set the clock source to use internal clocking for testing purposes. One end of a T1 circuit must provide the clock source. |
Step 4 Specify the framing type:
Router(config-controller)# framing esf
Step 5 Specify the linecode format:
Router(config-controller)# linecode b8zs Router(config-controller)#
Step 6 Enter the channel-group modification command to specify the channel group and time slots to be mapped.
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Note The maximum number of channel groups per each 8-port multichannel DS1/PRI port adapter is 128. |
The following example shows channel group 0 and time slots 1, 3 through 5, and 7 selected for mapping on a VIP2 or VIP4:
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
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/1/1:0,
changed state to up
Router(config-controller)#
Step 7 Specify the interface to modify by entering the interface serial subcommand, followed by the interface address of the interface you plan to configure. Table 4-2 provides examples.
Step 8 Assign an IP address and subnet mask to the interface with the ip address configuration subcommand as in the following example:
Router(config-int)# ip address 1.1.15.1 255.255.255.0 Router(config-int)#
Step 9 Add any other configuration subcommands required to enable routing protocols and adjust the interface characteristics.
Step 10 Use the no shutdown command to reenable the interfaces.
Step 11 After including all of the configuration subcommands, to complete the configuration, press Ctrl-Z (hold down the Control key while you press Z) to exit configuration mode.
Step 12 Write the new configuration to memory:
Router# write memory
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:
Router# disable Router>
This completes the procedure for creating a basic channelized T1 configuration. Proceed to the "Checking the Configuration" section to check the interface configuration using show commands. For additional information about configuring channelized T1 interfaces, refer to the publications Wide-Area Networking Configuration Guide and Wide-Area Networking Command Reference.
Following are instructions for a basic multichannel T1 ISDN PRI configuration (enabling a controller and specifying IP routing). You might also need to enter other configuration subcommands, depending on the requirements for your system configuration and the protocols you plan to route on the interface. For complete descriptions of configuration subcommands and the configuration options available, refer to the publications listed in the "Related Documentation" section.
The PRI group must be mapped before the multichannel DS1/PRI controller can be configured (there is only one PRI group for each controller). The following are controller commands used to map the PRI group:
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Note If you do not specify the time slots, the controller is configured for 23 B channels (time slots 1 to 23) and one D channel (time slot 24). |
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Note Cisco 7000 and Cisco 7500 series routers identify the PRI group as a serial interface by chassis slot number, port adapter slot (0 or 1), port number (0 or 1), and time slot 23. For example, the address of the multichannel DS1/PRI port adapter installed in chassis slot 4, port adapter slot 1, port 1, and time slot 24, would be recognized by the system as serial 4/1/1:23. |
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Note The Catalyst RSM/VIP2 identifies the PRI group as a serial interface by port adapter slot (0 or 1), port number (0 or 1), and time slot 23. For example, the address of the multichannel DS1/PRI port adapter installed in port adapter slot 1, port 1, and time slot 23, would be recognized by the system as serial 1/1:23. The Catalyst RSM/VIP2 does not support the PA-MC-2T1 multichannel DS1/PRI port adapter. |
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Note Cisco 7200 series and Cisco uBR7200 series routers identify the PRI group as a serial interface by port adapter slot number, port number (0 or 1), and time slot 23. For example, the address of the multichannel DS1/PRI port adapter installed in port adapter slot 1, port 1, and time slot 24, would be recognized by the system as serial 1/1:23. |
In the following procedure for a basic multichannel T1 ISDN PRI configuration, press Return after each configuration step:
Router# configure terminal
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-5ess (a switch for the United States) is identified as the switch type:
Router(config)# isdn switch-type primary-5ess
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Note The ISDN switch type that you identify is for all ISDN ports installed in the router. |
Step 3 Choose a T1 controller by entering the controller t1 subcommand, followed by the interface address of the interface you plan to configure. Table 4-3 provides examples.
Step 4 At the prompt, specify the clock source for the controller. The clock source command determines which end of the circuit provides the clocking signal.
Router(config-controller)# clock source line
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Note You can set the clock source to use internal clocking for testing purposes. One end of a T1 circuit must provide the clock source. |
Step 5 Specify the framing type:
Router(config-controller)# framing esf
Step 6 Specify the linecode format:
Router(config-controller)# linecode b8zs Router(config-controller)#
Step 7 Use the pri-group modification command to specify the time slots to map. The following examples show PRI-group time slots 1, 3 through 5, and 7 (the B channels) mapped to time slot 24 (the D channel), which is recognized by the system as time slot 23.
For the Catalyst RSM/VIP2:
Router(config-controller)# pri-group timeslots 1,3-5,7
Router(config-controller)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/1:23,
changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/1:23,
changed state to up
Router(config-controller)#
For the Catalyst 6000 family FlexWAN module:
Router(config-controller)# pri-group timeslots 1,3-5,7
Router(config-controller)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/0/1:23,
changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/0/1:23,
changed state to up
Router(config-controller)#
For the Cisco 7200 series and Cisco uBR7200 series routers:
Router(config-controller)# pri-group timeslots 1,3-5,7
Router(config-controller)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/1:23,
changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/1:23,
changed state to up
Router(config-controller)#
For the VIP2 or VIP4:
Router(config-controller)# pri-group timeslots 1,3-5,7
Router(config-controller)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/1/1:23,
changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/1/1:23,
changed state to up
Router(config-controller)#
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Note In the above examples, the line-protocol status for time slot 24 (listed in the output as time slot 23) represents the entire PRI group. |
Step 8 Specify the interface to modify by entering the interface serial subcommand, followed by the interface address of the interface you plan to configure. For multichannel T1 ISDN PRI, the PRI group is configured using time slot 24, which is recognized by the system as time slot 23 (for example, the VIP2 would be 3/1/1:23).
Step 9 If IP routing is enabled on the system, assign an IP address and subnet mask to the interface with the ip address configuration subcommand as in the following example:
Router(config-int)# ip address 1.1.15.1 255.255.255.0 Router(config-int)#
Step 10 Add any other configuration subcommands required to enable routing protocols and adjust the interface characteristics.
Step 11 Use the no shutdown command to reenable the interfaces.
Step 12 After including all of the configuration subcommands, to complete the configuration, press Ctrl-Z (hold down the Control key while you press Z) to exit configuration mode.
Step 13 Write the new configuration to memory:
Router# write memory
The system displays an OK message when the configuration is stored.
Step 14 Exit the privileged level and return to the user level by entering disable at the prompt:
Router# disable Router>
This completes the procedure for creating a basic multichannel T1 ISDN PRI configuration. Proceed to the "Checking the Configuration" section to check the interface configuration information using show commands. For dialer interface configuration and additional multichannel T1 ISDN PRI interface configuration information, refer to the publications Wide-Area Networking Configuration Guide and Wide-Area Networking Command Reference.
In controller configuration mode, specify T1 framing by entering the framing {sf | esf} configuration subcommand, as in the following example:
router(config-controller)# framing sf
Use the no form of this command to return to the default, ESF framing.
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Note If you specify SF framing, you must have 56-kbps speed or inverted data to avoid errors. |
For the PA-MC-2T1, PA-MC-4T1, and PA-MC-8T1 port adapters, in controller configuration mode, set the cable length by entering the cablelength {long [gain26 | gain 36] [0db | -7.5db | -15db | -22.5db] | short [133 | 266 | 399 | 533 | 655]} command, as in the following example:
router(config-controller)# cablelength long gain26 -15db
Use the no form of this command to return to the default, gain 36, 0 dB.
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Note Each T1 port can operate in long-haul or short-haul mode. In long-haul mode, the user must specify the gain and the line build-out. The default values are gain 26 with 0dB line build-out. In short-haul mode, the user must specify the cable length in feet. The range is from 0 to 655 feet. The actual mapping is shown in Table 4-5. |
For the PA-MC-8DSX1 port adapter, in controller configuration mode, set the cable length by entering the cablelength {short [133 | 266 | 399 | 533 | 655]} command, as in the following example:
router(config-controller)# cablelength short 266
Use the no form of this command to return to the default, 133. The range of values for the short-haul cable lengths is from 0 to 655 feet.
Table 4-5 provides the cable length range values for the cablelength short command.
| Range (feet) | Value |
|---|---|
0 to 133 | 133 |
133 to 266 | 266 |
266 to 399 | 399 |
399 to 533 | 533 |
533 to 655 | 655 |
To check the interface configuration using show commands, proceed to the following section, "Checking the Configuration ."
After configuring the new interface, use the show commands to display the status of the new interface or all interfaces, the ping command to check connectivity, and the loopback command to verify the physical interface.
Table 4-6 provides a list of show commands and their functions. This will help you to verify that new interfaces are configured and operating correctly and that the multichannel DS1/PRI port adapter appears correctly in them . Sample displays of the output of selected show commands appear in the sections that follow. For complete command descriptions and examples, refer to the publications listed in the "Related Documentation" section.
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Note The ouputs that appear in this document may not match the output you receive when running these commands. The outputs in this document are examples only. |
| Command | Function | Example | ||
|---|---|---|---|---|
show version or | Displays system hardware configuration, the number of each interface type installed, Cisco IOS software version, names and sources of configuration files, and boot images | Router# show version | ||
show controllers | Displays all the current interface processors and their interfaces | Router# show controllers | ||
show controllers t1 | Displays the status of each installed T1 interface | Router# show controllers t1 | ||
show diag slot
| Displays types of port adapters installed in your system and information about a specific port adapter slot, interface processor slot, or chassis slot | Router# show diag 2 | ||
show interfaces type 0 or 1/ | Displays status information about a specific type of interface (for example, serial) on a Catalyst RSM/VIP2 | Router# show interfaces serial 1/0 | ||
show interfaces type module-slot- | Displays status information about a specific type of interface (for example, serial) on a Catalyst 6000 family FlexWAN module | Router# show interfaces serial 3/0/0 | ||
show interfaces type port-adapter-slot-number/ | Displays status information about a specific type of interface (for example, serial) in a Cisco 7200 series router | Router# show interfaces serial 1/0 | ||
show interfaces type 1/interface-port- | Displays status information about a specific type of interface (for example, serial) in a Cisco uBR7223 router | Router# show interfaces serial 1/1 | ||
show interfaces type 1 or 2/ | Displays status information about a specific type of interface (for example, serial) in a Cisco uBR7246 router | Router# show interfaces serial 2/0 | ||
show interfaces type interface-processor- | Displays status information about a specific type of interface (for example, serial) on a VIP2 or VIP4 in a Cisco 7000 series or Cisco 7500 series router | Router# show interfaces serial 3/1/0 | ||
show isdn status | Displays all the ISDN interfaces installed in the router and the ISDN switch type for the interfaces | Router# show isdn status | ||
show protocols | Displays protocols configured for the entire system and for specific interfaces | Router# show protocols | ||
show running-config | Displays the running configuration file | Router# show running-config | ||
show startup-config | Displays the configuration stored in NVRAM | Router# show startup-config |
If an interface is shut down and you configured it as up, or if the displays indicate that the hardware is not functioning properly, ensure that the interface is properly connected and terminated. If you still have problems bringing up the interface, contact a service representative for assistance. This section includes the following subsections:
Choose the subsection appropriate for your system. Proceed to the "Using the ping Command to Verify Network Connectivity" section when you have finished using the show commands.
Display the configuration of the system hardware, the number of each interface type installed, the Cisco IOS software version, the names and sources of configuration files, and the boot images, using the show version command.
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Note The ouputs that appear in this document may not match the output you receive when running these commands. The outputs in this document are examples only. |
Following is an example of the show version command from a Catalyst 5000 family switch with the multichannel DS1/PRI port adapter:
Router# show version Cisco Internetwork Operating System Software IOS (tm) GS Software (RSP-PV-M), Version 11.1(20)CC Synced to mainline version: 11.1(13.5)CA Copyright (c) 1986-1997 by cisco Systems, Inc. Compiled Mon 24-Nov-97 23:59 by jroumas Image text-base: 0x60010900, data-base: 0x60708000 ROM: System Bootstrap, Version 5.3.2(3.2) [kmac 3.2], MAINTENANCE INTERIM SOFTWARE ROM: GS Software (RSP-BOOT-M), Version 11.1(8)CA, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1) potent7505-1 uptime is 5 hours, 30 minutes System restarted by reload System image file is "potent/rsp-pv-mz.DTP7", booted via tftp from 171.69.209.28 cisco RSP1 (R4700) processor with 65536K bytes of memory. R4700 processor, Implementation 33, Revision 1.0 Last reset from power-on G.703/E1 software, Version 1.0. G.703/JT2 software, Version 1.0. X.25 software, Version 2.0, NET2, BFE and GOSIP compliant. Chassis Interface. 2 VIP2 controllers (8 Ethernet)(8 T1). 8 Ethernet/IEEE 802.3 interfaces. 3 Serial network interfaces. 8 multichannel T1/PRI ports. 125K bytes of non-volatile configuration memory. 16384K bytes of Flash PCMCIA card at slot 0 (Sector size 128K). 8192K bytes of Flash internal SIMM (Sector size 256K). Configuration register is 0x0
Following is an example of the show version command from a Catalyst 6000 family switch with the multichannel DS1/PRI port adapter:
Router# show version Cisco Internetwork Operating System Software IOS (tm) MSFC Software (C6MSFC-JSV-M), Experimental Version 12.1(20000209:134547) [amcrae-cosmos_e_nightly 163] Copyright (c) 1986-2000 by cisco Systems, Inc. Compiled Wed 09-Feb-00 07:10 by Image text-base: 0x60008900, data-base: 0x6140E000 ROM: System Bootstrap, Version 12.0(3)XE, RELEASE SOFTWARE const-uut uptime is 5 minutes System returned to ROM by reload System image file is "bootflash:c6msfc-jsv-mz.Feb9" cisco Cat6k-MSFC (R5000) processor with 122880K/8192K bytes of memory. Processor board ID SAD03457061 R5000 CPU at 200Mhz, Implementation 35, Rev 2.1, 512KB L2 Cache Last reset from power-on Channelized E1, Version 1.0. Bridging software. X.25 software, Version 3.0.0. SuperLAT software (copyright 1990 by Meridian Technology Corp). TN3270 Emulation software. Primary Rate ISDN software, Version 1.1. 6 FlexWAN controllers (13 Serial)(8 E1)(8 T1)(2 HSSI)(2 ATM)(1 Channelized T3)(1 Channelized E3)(2 POS). 1 Virtual Ethernet/IEEE 802.3 interface(s) [Additional display text omitted] 8 multichannel T1/PRI ports. [Additional display text omitted] 16384K bytes of Flash internal SIMM (Sector size 256K). Configuration register is 0x1
Following is an example of the show version command from a Cisco 7200 series router with the multichannel DS1/PRI port adapter:
Router# show version Cisco Internetwork Operating System Software IOS (tm) GS Software (7200-PV-M), Version 11.1(20)CC Synced to mainline version: 11.1(13.5)CA Copyright (c) 1986-1997 by cisco Systems, Inc. Compiled Mon 24-Nov-97 23:59 by jroumas Image text-base: 0x60010900, data-base: 0x60708000 ROM: System Bootstrap, Version 5.3.2(3.2) [kmac 3.2], MAINTENANCE INTERIM SOFTWARE ROM: GS Software (C7200-BOOT-M), Version 11.1(8)CA, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1) router uptime is 5 hours, 30 minutes System restarted by reload System image file is "c7200-mz.DTP7", booted via tftp from 171.69.209.28 cisco 7206 (NPE150) processor with 65536K bytes of memory. R4700 processor, Implementation 33, Revision 1.0 Last reset from power-on G.703/E1 software, Version 1.0. G.703/JT2 software, Version 1.0. X.25 software, Version 2.0, NET2, BFE and GOSIP compliant. Chassis Interface. 8 Ethernet/IEEE 802.3 interfaces. 3 Serial network interfaces. 8 Channelized T1/PRI ports. 125K bytes of non-volatile configuration memory. 16384K bytes of Flash PCMCIA card at slot 0 (Sector size 128K). 8192K bytes of Flash internal SIMM (Sector size 256K). Configuration register is 0x0
Following is an example of the show version command from a Cisco 7500 series router with the multichannel DS1/PRI port adapter:
Router# show version Cisco Internetwork Operating System Software IOS (tm) GS Software (RSP-PV-M), Version 11.1(20)CC Synced to mainline version: 11.1(13.5)CA Copyright (c) 1986-1997 by cisco Systems, Inc. Compiled Mon 24-Nov-97 23:59 by jroumas Image text-base: 0x60010900, data-base: 0x60708000 ROM: System Bootstrap, Version 5.3.2(3.2) [kmac 3.2], MAINTENANCE INTERIM SOFTWARE ROM: GS Software (RSP-BOOT-M), Version 11.1(8)CA, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1) potent7505-1 uptime is 5 hours, 30 minutes System restarted by reload System image file is "potent/rsp-pv-mz.DTP7", booted via tftp from 171.69.209.28 cisco RSP1 (R4700) processor with 65536K bytes of memory. R4700 processor, Implementation 33, Revision 1.0 Last reset from power-on G.703/E1 software, Version 1.0. G.703/JT2 software, Version 1.0. X.25 software, Version 2.0, NET2, BFE and GOSIP compliant. Chassis Interface. 2 VIP2 controllers (8 Ethernet)(8 T1). 8 Ethernet/IEEE 802.3 interfaces. 3 Serial network interfaces. 8 multichannel T1/PRI ports. 125K bytes of non-volatile configuration memory. 16384K bytes of Flash PCMCIA card at slot 0 (Sector size 128K). 8192K bytes of Flash internal SIMM (Sector size 256K). Configuration register is 0x0
Display the types of port adapters installed in your system (and specific information about each) using the show diag slot command, where slot is the port adapter slot in a Cisco 7200 series and Cisco uBR7200 series router, and the interface processor slot in a Catalyst 6000 family FlexWAN module, or a VIP2 or VIP4 in a Cisco 7000 series or Cisco 7500 series router.
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Note The slot argument is not required for Catalyst 5000 family switches. |
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Note The ouputs that appear in this document may not match the output you receive when running these commands. The outputs in this document are examples only. |
Following is an example of the show diag command that shows a DS1/PRI port adapter on a Catalyst RSM/VIP2:
Router# show diag 2
Slot 2:
Physical slot 2, ~physical slot 0xD, logical slot 2, CBus 0
Microcode Status 0x4
Master Enable, LED, WCS Loaded
Board is analyzed
Pending I/O Status: None
EEPROM format version 1
VIP2 controller, HW rev 2.4, board revision D0
Serial number: 04371939 Part number: 73-1684-03
Test history: 0x00 RMA number: 00-00-00
Flags: cisco 7500
EEPROM contents (hex):
0x20: 01 15 02 04 00 42 B5 T1 49 06 94 03 00 00 00 00
0x30: 68 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[Additional display text omitted]
Following is an example of the show diag command that shows a DS1/PRI port adapter on a Catalyst 6000 family FlexWAN module:
Router# show diag
[Additional display text omitted]
Slot 6: Logical_index 12
Board is analyzed ipc ready FlexWAN controller
Slot database information:
Flags: 0x2004 Insertion time: unknown
CWAN Controller Memory Size: Unknown
PA Bay 0 Information:
Multi-channel (T1) PA, 8 ports
EEPROM format version 0
HW rev 0.00, Board revision UNKNOWN
Serial number: 00000000 Part number: 00-0000-00
[Additional display text omitted]
Following is an example of the show diag slot command that shows a multichannel DS1/PRI port adapter in port adapter slot 1 of a Cisco 7200 series router:
Router# show diag 1
Slot 1:
Physical slot 1, ~physical slot 0xE, logical slot 1, CBus 0
Microcode Status 0x4
Master Enable, LED, WCS Loaded
Board is analyzed
Pending I/O Status: None
EEPROM format version 1
VIP2 controller, HW rev 2.4, board revision D0
Serial number: 04540965 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 04 00 45 4A 25 49 06 94 03 00 00 00 00
0x30: 68 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Slot database information:
Flags: 0x4 Insertion time: 0x147C (05:33:22 ago)
Controller Memory Size: 32 MBytes DRAM, 2048 KBytes SRAM
PA Bay 0 Information:
Ethernet PA, 4 ports
EEPROM format version 1
HW rev 1.C, Board revision A0
Serial number: 04953593 Part number: 73-1556-07
PA Bay 1 Information:
Multi-channel (T1) PA, 8 ports
EEPROM format version 0
HW rev FF.FF, Board revision UNKNOWN
Serial number: 4294967295 Part number: 255-65535-255
Following is an example of the show diag slot command that shows a DS1/PRI port adapter in port adapter slot 0 on a VIP2 or VIP4 in interface processor slot 2:
Router# show diag 2
Slot 2:
Physical slot 2, ~physical slot 0xD, logical slot 2, CBus 0
Microcode Status 0x4
Master Enable, LED, WCS Loaded
Board is analyzed
Pending I/O Status: None
EEPROM format version 1
VIP2 controller, HW rev 2.4, board revision D0
Serial number: 04371939 Part number: 73-1684-03
Test history: 0x00 RMA number: 00-00-00
Flags: cisco 7500
EEPROM contents (hex):
0x20: 01 15 02 04 00 42 B5 T1 49 06 94 03 00 00 00 00
0x30: 68 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Slot database information:
Flags: 0x4 Insertion time: 0x14A4 (00:23:00 ago)
Controller Memory Size: 32 MBytes DRAM, 2048 KBytes SRAM
PA Bay 0 Information:
DS1/PRI PA, 1 port
EEPROM format version 1
HW rev 1.00, Board revision AO
Serial number: 3549502 Part number: 73-2620-02
For complete descriptions of interface subcommands and the configuration options available for Catalyst RSM/VIP2, Catalyst 6000 family FlexWAN module, Cisco 7200, Cisco uBR7200 series, VIP2 and VIP4 interfaces in a Cisco 7000 or Cisco 7500 series router, refer to the publications listed in the "Related Documentation" section.
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Note The ouputs that appear in this document may not match the output you receive when running these commands. The outputs in this document are examples only. |
Following is an example of the show interfaces serial command that shows all of the information specific to the first multichannel DS1/PRI port (port 0) on a Catalyst RSM/VIP2 in port adapter slot 1, channel group 2:
Router# show interfaces serial 1/0:2
Serial1/0:2 is down, line protocol is down
Hardware is Multichannel T1
Internet address is 1.1.1.10/30
MTU 1500 bytes, BW 1344 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive set (10 sec)
Last input 04:18:08, output 04:18:08, 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
523 packets input, 39030 bytes, 0 no buffer
Received 513 broadcasts, 0 runts, 0 giants
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
523 packets output, 40076 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
2 carrier transitions alarm present
Timeslot(s) Used: 1-24, Transmitter delay is 0 flags, transmit queue length 24
Following is an example of the show interfaces serial command that shows all of the information specific to the same port on a Catalyst RSM/VIP2 (port 0 in port adapter slot 1) when the port is configured for ISDN PRI:
Router# show interfaces serial 1/0:23
Serial1/0:23 is up, line protocol is up(spoofing)
Hardware is Multichannel T1
MTU 1500 bytes, BW 64Kbit, 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:24, Transmitter delay is 0 flags, transmit queue length 0
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Note In the above examples, the term "spoofing" indicates that the interface is configured for ISDN PRI. Spoofing is indicated only on time slot 24 (the D channel), which is recognized by the system as time slot 23. |
Following is an example of the show interfaces serial command that shows all of the information specific to the first multichannel DS1/PRI port (port 0) in port adapter slot 6, channel group 1:
Router# show interfaces serial 6/0/0:1
Serial6/0/0:1 is down, line protocol is down
Hardware is Multichannel T1
MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, crc 16, CRC 16, Data non-inverted
Keepalive not set
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 throttles
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, 2 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions alarm present
Timeslot(s) Used:1-24, subrate: 64Kb/s, transmit delay is 0 flags
Transmit queue length 999
Following is an example of the show interfaces serial command that shows all of the information specific to the first multichannel DS1/PRI port (port 0) in port adapter slot 6, channel group 1:
Router# show interfaces serial 6/0:1
Serial6/0:1 is up, line protocol is up (looped)
Hardware is Multichannel T1
Internet address is 1.6.0.1/30
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 00:00:07, output 00:00:07, 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
87 packets input, 6521 bytes, 0 no buffer
Received 87 broadcasts, 0 runts, 0 giants
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
87 packets output, 6521 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
1 carrier transitions
no alarm present
Timeslot(s) Used:1-24, subrate: 64Kb/s, transmit delay is 0 flags
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Note In the above example, the term "spoofing" indicates that the interface is configured for ISDN PRI. Spoofing is indicated only on time slot 24 (the D channel), which is recognized by the system as time slot 23. |
Following is an example of the show interfaces serial command that shows all of the information specific to the first multichannel DS1/PRI port (port 0) on a VIP2- or VIP4-equipped Cisco 7500 series router in chassis slot 3, port adapter slot 1, channel group 2:
Router# show interfaces serial 3/1/0:2
Serial3/1/0:2 is down, line protocol is down
Hardware is Multichannel T1
Internet address is 1.1.1.10/30
MTU 1500 bytes, BW 1344 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive set (10 sec)
Last input 04:18:08, output 04:18:08, 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
523 packets input, 39030 bytes, 0 no buffer
Received 513 broadcasts, 0 runts, 0 giants
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
523 packets output, 40076 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
2 carrier transitions alarm present
Timeslot(s) Used: 1-24, Transmitter delay is 0 flags, transmit queue length 24
Following is an example of the show interfaces serial command that shows all of the information specific to the same port on a VIP2- or VIP4-equipped Cisco 7500 series router (port 0 in chassis slot 3, port adapter slot 1) when the port is configured for ISDN PRI:
Router# show interfaces serial 3/1/0:23
Serial3/1/0:23 is up, line protocol is up(spoofing)
Hardware is Multichannel T1
MTU 1500 bytes, BW 64Kbit, 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:24, Transmitter delay is 0 flags, transmit queue length 0
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Note In the above examples, the term "spoofing" indicates that the interface is configured for ISDN PRI. Spoofing is indicated only on time slot 24 (the D channel), which is recognized by the system as time slot 23. |
Using the ping command, you can verify that an interface port is functioning properly. This section provides a brief description of this command. 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 system 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 a bad connection.
Following is an example of a successful ping command to a remote server with the address 10.0.0.10:
Router# ping 10.0.0.10 <Return> Type escape sequence to abort. Sending 5, 100-byte ICMP Echoes to 10.0.0.10, 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.
Proceed to the next section, "Using loopback Commands," to finish checking network connectivity.
If you have difficulty with the multichannel DS1/PRI port adapter configuration or installation, you can troubleshoot the multichannel DS1/PRI port adapter using the loopback command. Specify loopback for a T1 controller and T1 channel using the loopback command. There are three main loopback modes: diagnostic, local (line and payload), and remote (iboc and esf). Specify the loopback format using the loopback [diagnostic | local | remote] command.
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Note To shut down the T1 controller, use the shutdown command at the controller prompt. |
loopback[diagnostic]
Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller t1 1/0 Router(config-controller)# loopback diagnostic
Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller t1 3/0/0 Router(config-controller)# loopback diagnostic
Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller t1 2/0 Router(config-controller)# loopback diagnostic
Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller t1 2/1/0 Router(config-controller)# loopback diagnostic
loopback[local{payload|line}]
Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller t1 1/0 Router(config-controller)# loopback local payload
Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller t1 3/0/0 Router(config-controller)# loopback local payload
Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller t1 2/0 Router(config-controller)# loopback local payload
Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller t1 2/1/0 Router(config-controller)# loopback local payload
loopback [remote {esf line | iboc | esf payload}]
Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller t1 1/0 Router(config-controller)# loop remote esf line
Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller t1 3/0/0 Router(config-controller)# loop remote esf line
Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller t1 2/0 Router(config-controller)# loop remote esf line
Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)# controller t1 2/1/0 Router(config-controller)# loop remote esf line
To check bit errors using a bit error rate test (BERT), use the following command:
[no] t1 bert pattern {2^11 | 2^15 | 2^20 O.153 | 2^20 QRSS | 2^23 | 0s | 1s | alt-0-1} interval minutes
Here 2^15 is an exponential number that represents a pseudorandom repeating pattern that is 32,767 bits long, 2^20 is a pseudorandom repeating pattern that is 1,048,575 bits long, 2^23 is a pseudorandom repeating pattern that is 8,388,607 bits long, 0s is a pattern of all zeroes (00000000...), 1s is a pattern of all 1s (111111...), and minutes are 1-14400, which designate the time the BERT will run.
To stop the BERT, use the optional no form of the command.
Following is an example of this command, where the pseudorandom pattern 2^20 is sent and repeats on the T1 port for 60 minutes:
Router# t1 bert pattern 2^20 interval 60
The BERT command is not saved in NVRAM. The test patterns from the multichannel DS1/PRI port adapter are framed test patterns; therefore, they are inserted into the payload of a framed T1 signal.
To display the BERT results, use the following EXEC commands: show controllers t1 number or show controllers t1 number brief.
The following subsections show examples of displaying BERT results output.
Router# show controllers t1 0/0 brief
T1 0/0 is up.
DSX1 BERT pattern : zeros
DSX1 BERT sync : sync
DSX1 BERT sync count : 1
DSX1 BERT interval : 2
DSX1 BERT time remain : 2
DSX1 BERT total errs : 0
DSX1 BERT total k bits: 43155
DSX1 BERT errors (last): 0
DSX1 BERT k bits (last): 43155
Applique type is Channelized T1
No alarms detected.
Cablelength is long gain36 0db
Framing is ESF, Line Code is B8ZS, Clock Source is Line.
Data in current interval (24 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
Router#
Router# show controllers t1 2/0
T1 2/0 is up. (Diagnostic Loopback)
DSX1 BERT pattern : zeros
DSX1 BERT sync : sync
DSX1 BERT sync count : 1
DSX1 BERT interval : 2
DSX1 BERT time remain : 2
DSX1 BERT total errs : 0
DSX1 BERT total k bits: 6165
DSX1 BERT errors (last): 0
DSX1 BERT k bits (last): 6165
Applique type is Channelized T1
Receiver has no alarms.
Cablelength is long gain36 0db
Framing is ESF, Line Code is B8ZS, Clock Source is Line.
Data in current interval (0 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
Router#
Router# show controllers t1 0/0/0 brief
T1 0/0/0 is up.
DSX1 BERT pattern : zeros
DSX1 BERT sync : sync
DSX1 BERT sync count : 1
DSX1 BERT interval : 2
DSX1 BERT time remain : 2
DSX1 BERT total errs : 0
DSX1 BERT total k bits: 43155
DSX1 BERT errors (last): 0
DSX1 BERT k bits (last): 43155
Applique type is Channelized T1
No alarms detected.
Cablelength is long gain36 0db
Framing is ESF, Line Code is B8ZS, Clock Source is Line.
Data in current interval (24 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
Router#
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Note When the T1 is under BERT (in the running state), its line state is down and the "Total Bit Errors" value is not valid if the "Status" field is "Not Sync." |
Router# show controllers t1 0/0
T1 0/0 is up.
DSX1 BERT pattern : zeros
DSX1 BERT sync : done
DSX1 BERT sync count : 1
DSX1 BERT interval : 2
DSX1 BERT time remain : 0
DSX1 BERT total errs : 0
DSX1 BERT total k bits: 178785
DSX1 BERT errors (last): 0
DSX1 BERT k bits (last): 178785
Applique type is Channelized T1
No alarms detected.
Cablelength is long gain36 0db
Framing is ESF, Line Code is B8ZS, Clock Source is Line.
Data in current interval (177 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
Router#
Router# show controllers t1 2/0
%CLEAR-5-COUNTERS: Clear counter on all interfaces by consoleshow cont t1 2/0
T1 2/0 is up. (Diagnostic Loopback)
DSX1 BERT pattern : zeros
DSX1 BERT sync : done
DSX1 BERT sync count : 1
DSX1 BERT interval : 2
DSX1 BERT time remain : 0
DSX1 BERT total errs : 0
DSX1 BERT total k bits: 178785
DSX1 BERT errors (last): 0
DSX1 BERT k bits (last): 178785
Applique type is Channelized T1
Receiver has no alarms.
Cablelength is long gain36 0db
Framing is ESF, Line Code is B8ZS, Clock Source is Line.
Data in current interval (0 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
Router#
Router# show controllers t1 0/0/0
T1 0/0/0 is up.
DSX1 BERT pattern : zeros
DSX1 BERT sync : done
DSX1 BERT sync count : 1
DSX1 BERT interval : 2
DSX1 BERT time remain : 0
DSX1 BERT total errs : 0
DSX1 BERT total k bits: 178785
DSX1 BERT errors (last): 0
DSX1 BERT k bits (last): 178785
Applique type is Channelized T1
No alarms detected.
Cablelength is long gain36 0db
Framing is ESF, Line Code is B8ZS, Clock Source is Line.
Data in current interval (177 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
Router#
|
Note The "Status" field is irrelevant when the BERT is done. If the "Sync Detected" counter is 0, the Bit Errors fields have no meaning. |
Router# show controllers t1 0/0
T1 0/0 is up.
DSX1 BERT pattern : zeros
DSX1 BERT sync : done
DSX1 BERT sync count : 1
DSX1 BERT interval : 2
DSX1 BERT time remain : 2
DSX1 BERT total errs : 0
DSX1 BERT total k bits: 6166
DSX1 BERT errors (last): 0
DSX1 BERT k bits (last): 6166
Applique type is Channelized T1
No alarms detected.
Cablelength is long gain36 0db
Framing is ESF, Line Code is B8ZS, Clock Source is Line.
Data in current interval (267 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
Router#
Router# show controllers t1 2/0
T1 2/0 is up. (Diagnostic Loopback)
DSX1 BERT pattern : zeros
DSX1 BERT sync : done
DSX1 BERT sync count : 1
DSX1 BERT interval : 2
DSX1 BERT time remain : 2
DSX1 BERT total errs : 0
DSX1 BERT total k bits: 6166
DSX1 BERT errors (last): 0
DSX1 BERT k bits (last): 6166
Applique type is Channelized T1
Receiver has no alarms.
Cablelength is long gain36 0db
Framing is ESF, Line Code is B8ZS, Clock Source is Line.
Data in current interval (58 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
Router#
Router# show controllers t1 0/0/0
T1 0/0/0 is up.
DSX1 BERT pattern : zeros
DSX1 BERT sync : done
DSX1 BERT sync count : 1
DSX1 BERT interval : 2
DSX1 BERT time remain : 2
DSX1 BERT total errs : 0
DSX1 BERT total k bits: 6166
DSX1 BERT errors (last): 0
DSX1 BERT k bits (last): 6166
Applique type is Channelized T1
No alarms detected.
Cablelength is long gain36 0db
Framing is ESF, Line Code is B8ZS, Clock Source is Line.
Data in current interval (267 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
Router#
|
Note In the preceding three examples, the "Sync Detected" counter indicates the number of times the pattern sync is detected (from No Sync to Sync), the "Bit Errors(Sync BERT Started)" counter indicates the number of bit errors during BERT, and the "Bit Errors(Sync last Sync)" counter shows the number of bit errors since the last pattern sync was detected. |
Posted: Thu Sep 7 09:11:01 PDT 2000
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