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October 2, 2000
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Note You can find the most current Cisco IOS documentation on Cisco Connection Online (CCO ). These electronic documents may contain updates and modifications made after the hardcopy documents were printed. |
These release notes for the Cisco AS5800 universal access servers describe the enhancements provided in Cisco IOS Release 12.1(3a) XL1. These release notes are updated as needed.
For a list of the software caveats that apply to Cisco IOS Release 12.1 XL, see Caveats for Cisco IOS Release that accompanies these release notes. The caveats document is updated for every maintenance release and is located on Cisco Connection Online (CCO) and the Documentation CD-ROM.
Use these release notes with Cross-Platform Release Notes for Cisco IOS Release on CCO and the Documentation CD-ROM.
These release notes describe the following topics:
The Cisco AS5800 is a high-density, Integrated Services Digital Network (ISDN) and modem Wide Area Network (WAN) aggregation system that provides digital and analog call termination. It is intended to be used as a service provider dial point-of-presence (POP) or centralized enterprise dial gateway. The Cisco AS5800 consists of a dial shelf, a router shelf, and (optionally) a system controller:
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Note T1 and E1 cards are not supported in the same box. |
The AC-input power shelf is an optional component of the Cisco AS5800 and is used to convert AC-input power into DC-output power for the DC-powered Cisco 5814 dial shelf. The AC-input power shelf contains two AC-input power supplies.
The AC-input to DC-output connection supplies -48V DC-output power to the dial shelf power entry modules (PEMs). The PEMs receive the -48V and transmit power to the filter module. Power flows through the filter module to the backplane where it is distributed to the dial shelf controller card(s) and feature cards.
The AC-input power shelf includes two 2,000 W, AC-input power supplies that plug into a common power backplane in the AC-input power shelf. A single AC-input power supply is capable of powering a fully configured Cisco 5814 dial shelf. The second power supply provides full redundancy.
The Cisco AS5800/Voice Gateway enables highly scalable deployment of toll-quality voice and fax services over data networks. Enhanced with Cisco's IOS software and Service Node (SN) capabilities, the Cisco AS5800 supports features such as prepaid and postpaid calling card, 800 call redirect, voice activated dialing, and voice and fax mail.
The Cisco AS5800 is specifically designed to meet the demands of large service providers such as Post, Telephone, and Telegraphs (PTTs), regional bell operating companies (RBOCs), inter-exchange carriers (IXCs), and large Internet telephony service providers (ITSPs). The physical architecture of the Cisco AS5800 product enhances reliability, availability, and serviceability. Critical features to dial POP administrators include minimizing downtime, service costs, and time to deployment.
The Cisco AS5800 supports up to 1344 voice ports in a single system, thus offering the highest concentration of VoIP Digital Signal Processors (DSPs) available in a single voice gateway. The Cisco AS5800 offers breakthrough voice quality, density, and scalability, while continuing to provide the rich set of access, VoIP, and QoS services that are part of Cisco IOS software.
For more information on the Cisco AS5800, refer to the Cisco AS5800 Universal Access Server Operations, Administration, Maintenance, and Provisioning Guide .
For information on new features and Cisco IOS commands supported by Cisco IOS Release 12.1, see the "New and Changed Information" section and "Related Documentation" section.
This section describes the system requirements for Cisco IOS Release 12.1 XL:
| System Components | Feature Set | Image Name | Software Image | Minimum Flash | Minimum DRAM |
|---|---|---|---|---|---|
| Cisco AS5800 | IP Standard | IP Plus | c5800-p4-mz | 16 MB |
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| Dial Shelf: Cisco 5814 | IP Plus | dsc-c5800-mz | 8 MB |
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Cisco IOS Release 12.1 XL supports the Cisco AS5800:
For detailed descriptions of the new hardware features, see "New and Changed Information" section. Table 2 and Table 3 detail the supported interfaces, cards, options, NPE support, and port adapters.
| Interfaces, Cards Options, and Support, | Description |
|---|---|
| Interfaces | 12-port T1 or E1 termination card |
1- port channelized T3 (CT3) termination card | |
| Modem Cards | 72-port modem card (HMM)1 |
144-port modem card (DMM)2 | |
324-port modem card (UPC) | |
| Voice Feature Cards (VFCs) | 192-port voice card (VOX) |
| Optional AC-input Power Shelves | Two AC-input power supplies |
| NPE Support | With any Cisco AS5800 software image, the maximum hardware configuration with an NPE-200 router shelf (RS7206) is one CT3 or two T1/E1 trunk cards and five DMMs or 10 HMMs for a maximum of 28 T 1/24 E1 controllers and 720 modems. If a larger configuration is desired, a second NPE-200 router shelf can be configured in split-shelf mode, or a single NPE-300 (RS7206 VXR). The NPE call limitations for a Cisco AS5800/Voice Gateway are 672 data calls per NPE-300 and 1344 data calls when using two NPE-300s in split-shelf mode. |
| 172-port modem card requires 32M DRAM. 2144-port modem card requires 64M DRAM. |
| Router Shelf | Port Adapter | Description |
|---|---|---|
| RS7206 Router Shelf | PA-100VG | Single-Port 100 VG Port Adapter |
PA-12E/2FE | Dual-Wide Ethernet-switch Port Adapter | |
PA-1C-E | 1-Port ESCON Channel Port Adapter | |
PA-2CE1/PRI-120 | 2-Port Channelized E1/PRI Port Adapter, 120 ohm | |
PA-2CE1/PRI-75 | 2-Port Channelized E1/PRI Port Adapter, 75 ohm | |
PA-2CT1/PRI | 2-Port Channelized T1/PRI Port Adapter | |
PA-2E3 | 2-Port E3 Serial Port Adapter with E3 DSU | |
PA-2FEISL-FX | 2-Port Fast Ethernet/ISL 100BaseTx Port Adapter | |
PA-2FEISL-TX | 2-Port Fast Ethernet/ISL 100BaseFx Port Adapter | |
PA-2H | Port Adapter, 2-Port HSSI | |
PA-4B-U | 4-Port BRI Port Adapter, U Interface | |
PA-4E | Port Adapter, 4-Port Ethernet,10BT | |
PA-4R | Port Adapter, 4-Port Token Ring (Older Hermon Based) | |
PA-4R-DTR | Port Adapter, 4-Port Token Ring (Hawkeye Based) | |
PA-4R-FDX | Port Adapter, 4 Port Token Ring 4/16Mbps, Full Duplex | |
PA-4T+ | Port Adapter, 4-Port Serial,5IN1 | |
PA-5EFL | Port Adapter, 5-Port Ethernet,10FL | |
PA-8B-S/T | 8-Port BRI Port Adapter, S/T Interface | |
PA-8E | Port Adapter, 8-Port Ethernet,10BT | |
PA-8T-232 | Port Adapter, 8-Port Serial,232 | |
PA-8T-V35 | Port Adapter, 8-Port Serial,V.35 | |
PA-8T-X21 | Port Adapter, 8-Port Serial,X.21 | |
PA-A1-OC3MM | 1 Port ATM OC3 Multi-Mode Port Adapter | |
PA-A1-OC3SM | 1 Port ATM OC3 Single Mode Intermediate Reach Port Adapter | |
PA-A2-4E1XC-E3ATM | CES Port Adapter E3/E1 120 ohms | |
PA-A2-4E1XC-OC3SM | CES OC3 Port Adapter 4E1 Ports 120 ohms | |
PA-A2-4T1C-OC3SM | ATM CES Port Adapter, 4T1 CES Ports and 1 OC3 ATM SM Port | |
PA-A2-4T1C-T3ATM | ATM CES Port Adapter, 4T1 CES Ports and 1 T3 ATM Port | |
PA-A3-E3 | 1-Port ATM Enhanced E3 Port Adapter | |
PA-A3-OC3MM | 1-Port ATM Enhanced OC3c/STM1 Multi-Mode | |
PA-A3-OC3SMI | 1-Port ATM Enhanced OC3c/STM1 Single Mode | |
PA-A3-OC3SML | 1-Port ATM Enhanced OC3c/STM1 Single Mode | |
PA-A3-T3 | 1-Port ATM Enhanced DS3 Port Adapter | |
PA-CT3/4T1 | Channelized DS3 Port Adapter with 4 T1 | |
PA-E3 | 1 Port E3 Serial Port Adapter with E3 DSU | |
PA-F/FD-MM | Port Adapter,1-Port FDDI Full Duplex Multi-Mode | |
| RS7206 Router Shelf (Continued) | PA-F/FD-SM | Port Adapter,1-Port FDDI Full Duplex Single-Mode |
PA-FE-FX | Port Adapter,1-Port FE, 100FX | |
PA-FE-TX | Port Adapter,1-Port FE,100TX | |
PA-F-MM | Port Adapter,1-Port FDDI Multi-Mode | |
PA-F-SM | Port Adapter,1-Port FDDI Single Mode | |
PA-H | Port Adapter,1-Port HSSI | |
PA-POS-OC3MM | 1-Port Packet/SONET OC3c/STM1 Multi-Mode Port Adapter | |
PA-POS-OC3SMI | 1-Port Packet/SONET OC3c/STM1 Single Mode (IR) Port Adapter | |
PA-POS-OC3SML | 1-Port Packet/SONET OC3c/STM1 Single Mode (LR) Port Adapter | |
PA-T3 | 1-Port T3 Serial Port Adapter with T3 DSUs | |
PA-T3+ | 1-Port T3 Serial Port Adapter Enhanced | |
SA-COMP/1 | Service Adapter, Compression (64 VCs Stac) | |
SA-COMP/4 | Service Adapter, Compression (256 VCs Stac) | |
| RS7206VXR Router Shelf | PA-100VG | Single Port 100VG Port Adapter |
PA-12E/2FE | Dual-Wide Ethernet-Switch Port Adapter | |
PA-1C-E | 1 Port ESCON Channel Port Adapter | |
PA-2E3 | 2 Port E3 Serial Port Adapter with E3 DSU | |
PA-2FEISL-FX | 2 port Fast Ethernet/ISL 100BaseTx Port Adapter | |
PA-2FEISL-TX | 2 port Fast Ethernet/ISL 100BaseFx Port Adapter | |
PA-2H | Port Adapter, 2-Port HSSI | |
PA-4B-U | 4 Port BRI Port Adapter, U Interface | |
PA-4E | Port Adapter, 4-Port Ethernet,10BT | |
PA-4R-DTR | Port Adapter, 4-Port Token Ring (Hawkeye Based) | |
PA-4T+ | Port Adapter, 4-Port Serial,5in1 | |
PA-5EFL | Port Adapter, 5-Port Ethernet,10FL | |
PA-8B-S/T | 8 Port BRI Port Adapter, S/T Interface | |
PA-8E | Port Adapter, 8-Port Ethernet,10BT | |
PA-8T-232 | Port Adapter, 8-Port Serial,232 | |
PA-8T-V35 | Port Adapter, 8-Port Serial,V.35 | |
PA-8T-X21 | Port Adapter, 8-Port Serial,X.21 | |
PA-A1-OC3MM | 1 Port ATM OC3 Multi-Mode Port Adapter | |
PA-A1-OC3SM | 1 Port ATM OC3 Single Mode Intermediate Reach Port Adapter | |
PA-A2-4E1XC-E3ATM | CES Port Adapter E3/E1 120 ohms | |
PA-A2-4E1XC-OC3SM | CES OC3 Port Adapter 4E1 Ports 120 ohms | |
PA-A2-4T1C-OC3SM | ATM CES Port Adapter, 4T1 CES Ports and 1 OC3 ATM SM Port | |
PA-A2-4T1C-T3ATM | ATM CES Port Adapter, 4T1 CES Ports and 1 T3 ATM Port | |
| RS7206VXR Router Shelf (Continued) | PA-A3-E3 | 1-Port ATM Enhanced E3 Port Adapter |
PA-A3-OC3MM | 1-Port ATM Enhanced OC3c/STM1 Multi-Mode | |
PA-A3-OC3SMI | 1-Port ATM Enhanced OC3c/STM1 Single Mode | |
PA-A3-OC3SML | 1-Port ATM Enhanced OC3c/STM1 Single Mode | |
PA-A3-T3 | 1-Port ATM Enhanced DS3 Port Adapter | |
PA-E3 | 1 Port E3 Serial Port Adapter with E3 DSU | |
PA-FE-FX | Port Adapter, 1-Port FE, 100FX | |
PA-FE-TX | Port Adapter, 1-Port FE,100TX | |
PA-GE | One-Port Gigabit Ethernet PA for 7200VXR | |
PA-H | Port Adapter, 1-Port HSSI | |
PA-POS-OC3MM | 1-Port Packet/SONET OC3c/STM1 Multi-Mode Port Adapter | |
PA-POS-OC3SMI | 1-Port Packet/SONET OC3c/STM1 Single Mode (IR) Port Adapter | |
PA-POS-OC3SML | 1-Port Packet/SONET OC3c/STM1 Single Mode (LR) Port Adapter | |
PA-T3 | 1 Port T3 Serial Port Adapter with T3 DSUs | |
PA-T3+ | 1 Port T3 Serial Port Adapter Enhanced |
To determine the version of Cisco IOS software running on your Cisco AS5800, log in to the Cisco AS5800 and enter the show version EXEC command:
router> show version Cisco Internetwork Operating System Software IOS (tm) 12.1 T Software (c5800-p4-mz), Version 12.1(3) T, RELEASE SOFTWARE
For general information about upgrading to a new software release, see Cisco IOS Upgrade Ordering Instructions located at:
http://www.cisco.com/warp/public/cc/cisco/mkt/ios/prodlit/957_pp.htm
For specific information about upgrading AS5800 IOS software, modem and firmware upgrades, and split dial shelf, refer to the Provisioning chapter in the Cisco AS5800 Operations, Administration, Maintenance, and Provisioning Guide (OAM&P) at:
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_serv/as5800/op/prov.htm
Microcode software images are bundled with the system software image. Bundling eliminates the need to store separate microcode images. When the router starts, the system software unpacks the microcode software bundle and loads the proper software on all the interface processor boards. Table 3 lists the current microcode versions for the Cisco AS5800.
You could have received a later version of modem code than the one bundled with the Cisco IOS software. The modem code in Flash memory is mapped to the modems. Unless you fully understand how Cisco IOS software uses modem code, it is important to keep the factory configuration.
The modem code release notes are on CCO and the Documentation CD-ROM.
On CCO at:
Technical Documents: Documentation Home Page: Access Servers and Access Routers: Firmware and Portware Information
On the Documentation CD-ROM at:
Cisco Product Documentation: Access Servers and Access Routers: Firmware and Portware Information
| Modem Module | Current Bundled Microcode Version | Minimum Cisco IOS Release Required |
MICA modems | MICA portware Version 2.7.2.0 | 12.1(3)T and later |
NextPort modems | NextPort portware Version 0.0.6.8.1 | 12.1(3)T and later |
The Cisco IOS software is packaged in feature sets consisting of software images—depending on the platform. Each feature set contains a specific set of Cisco IOS features.
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Caution Cisco IOS images with strong encryption (including, but not limited to 168-bit (3DES) data encryption feature sets) are subject to United States government export controls and have limited distribution. Strong encryption images to be installed outside the United States are likely to require an export license. Customer orders may be denied or subject to delay due to United States government regulations. When applicable, purchaser/user must obtain local import and use authorizations for all encryption strengths. Please contact your sales representative or distributor for more information, or send an e-mail to export@cisco.com. |
Table 4 lists the features and feature sets supported by the Cisco AS5800 in Cisco IOS Release 12.1 XL and uses the following conventions:
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Note This feature set table might contain a selected list of features. This table might not be cumulative or list all the features in each image. |
| Features | In1 | Software Images by Feature Set | |
|---|---|---|---|
| IP Plus | IPsec 56 | ||
New Features in 12.1(3)T | |||
AAA Session MIB | (3) | Yes | Yes |
Circuit Interface Identification MIB | (3) | Yes | Yes |
Cisco AAA Server MIB and Additional Enhancements for the Cisco AS5300 and Cisco AS5800 | (3) | Yes | Yes |
Event MIB | (3) | Yes | Yes |
Fax Relay Packet Loss Concealment | (3) | Yes | Yes |
Individual SNMP Trap Support | (3) | Yes | Yes |
Monitoring Resource Availability on Cisco AS5300 Universal Access Servers | (3) | Yes | Yes |
Network Side ISDN PRI Signaling, Trunking and Switching | (3) | Yes | Yes |
Preauthentication with ISDN PRI and Channel-Associated Signaling | (3) | Yes | Yes |
TCP Clear Performance Optimization | (3) | Yes | Yes |
| Hardware | |||
AS58-324UPC-CC | (3) | Yes | Yes |
| IP Routing | |||
Asynchronous Serial Traffic over UDP |
| Yes | Yes |
| LAN Support | |||
CLI String Search |
| Yes | Yes |
Dynamic Multiple Encaps for Dial-In over ISDN |
| Yes | Yes |
L2TP Dialout |
| Yes | Yes |
Parse Bookmarks |
| Yes | Yes |
SS7 |
| Yes | Yes |
| Management | |||
Dial Shelf Controller Redundancy |
| Yes | Yes |
Process MIB |
| Yes | Yes |
SNMP Version 3 |
| Yes | Yes |
| Miscellaneous |
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Cisco IOS DHCP Server |
| Yes | Yes |
OS_IFSS |
| Yes | Yes |
| Security | |||
AAA Server Group Deadtimer | (2) | Yes | Yes |
AAA Server Group Enhancements | (2) | Yes | Yes |
Preauthentication with ISDN PRI | (2) | Yes | Yes |
Resource Pool Management with Direct Remote Services |
| Yes | Yes |
| WAN Services | |||
Layer 2 Tunneling Protocol (L2TP) |
| Yes | Yes |
The following sections list the new hardware and software features supported by the Cisco AS5800 for Cisco IOS Release 12.1 XL.
The following new hardware features are supported by the Cisco AS5800 for Cisco IOS Release 12.1(3a) XL1:
The AS58-324UPC-CC uses NextPort hardware and firmware to provide modem ports for the Cisco AS5800. These ports are grouped into SPEs. An SPE is a service processing element that supports six ports. There are 54 SPEs per UPC for a total of 324 ports per UPC. Each UPC also has a minimum of a 128 MB SDRAM card. Configuration, management, and troubleshooting of modem ports can be done at the UPC, SPE, and port level.
The Cisco AS5800 can be equipped with a maximum of seven UPCs with upgradable firmware.
Currently the UPC supports data traffic, and is universal port capable, depending on the software and platform. Each UPC plugs directly into the dial shelf backplane and has no external connections. Each UPC has three LEDs that indicate card status.
The Cisco AS5800 is capable of terminating up to 2,047 port connections (slightly more than an OC3) when equipped with seven UPCs and three CT3 + 1 12T1 trunk cards. A split shelf configuration with a second router shelf and second dial shelf controller are required to achieve full capacity.
A single router and a standard configuration will support up to 1,344 port connections. Cisco IOS Release 12.1(3)T is required for the UPC. Unless your system shipped with UPCs installed, you will need to upgrade the Cisco IOS image on the dial shelf and router shelf or shelves.
The following new software features are supported by the Cisco AS5800 for Cisco IOS Release 12.1(3a) XL1:
Exec VPDN (Virtual Private Dialup Networks) provides dial-up users with a shell-based login, or exec-login, onto the NAS. The Exec VPDN shell-based login authenticates users in a character mode connection and then Exec VPDN initiates a PPP session and tunnels to a remote home gateway. Exec VPDN addresses the previous login limitation where user sessions tunneled directly to the home gateway via L2TP or L2F could not employ character-mode logins once the PPP session started.
The Remote Access Dial-in User Service (RADIUS) attribute 8 (framed IP address) in the access requests feature makes it possible for a network access server (NAS) to provide the RADIUS server with a hint of the user IP address in advance of user authentication. An application can be run on the RADIUS server to use this hint and build a table (map) of user names and addresses. The server can then use the mapping table information in other applications, such as preparing customized user login pages in advance of a successful user authentication with the RADIUS server.
Customers are demanding the ability to both monitor and terminate their authenticated client connections via SNMP. Furthermore, customers are requesting that the client data provided be directly related to the accounting information reported by AAA to either Radius or Tacacs. Moreover, additional real-time information such as idle times are also requested for this feature in order to provide the ability to terminate calls with no activity present.
This feature allows Cisco's customers to extend and expand their ability to monitor end users by providing access to some client data objects via SNMP.
The Circuit Interface MIB consists of a single table, with each row being a sequence of two objects: Circuit Interface Description (cciDescr) and Circuit Interface Status (cciStatus). The cciDescr object is used to identify circuits using a textual description of up to 255 characters specified by the user. (Note that MIB objects are modified using network management system (NMS) applications, and can not be configured using the Cisco IOS command-line interface.) When the row is created by a user, a value is set for the cciDescr object. The table is indexed by ifIndex from the IF-MIB. The cciStatus is the RowStatus object for the rows in the table. The cciStatus object can be set to only two values by the user: createAndGo(4), which creates a new row, and destroy(6), which removes an existing row. If the row is created successfully, the cciStatus will be active(1). When creating a new row, the user should set the cciDescr object along with the cciStatus in a single snmp set pdu command. If the row is already active, only the cciDescr object can be modified. The other option is to delete the row first by setting the cciStatus to destroy(6) and then recreate the row with a new value for cciDescr. When creating a new row, the ifIndex is validated first. If the ifIndex value is not valid, the row is not created and an error code is returned. Similarly, if ,when an interface is deleted, there was a corresponding row in this table, that row will be deleted automatically.
After an identifying description is created for an interface by a user, the description (the cciDescr object) will be sent along with the other varbinds as part of linkup and linkdown trap notifications.
For further details, see the CISCO-CIRCUIT-INTERFACE-MIB.my file, available from the Cisco Connection Online MIB site at http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml.
The show caller command combines the output of the existing call-related show commands. This command displays connection status in summary or in detail. The summary field has been added (summary) to display the total number of calls, including the number of ISDN and Analog calls, since the last reload. This summary counter is cumulative of all calls since the NAS has been up, where other counters indicate the current number of calls in the NAS.
Using the show caller command provides the following benefits:
This MIB provides statistics reflecting the state of AAA Server operation within the device and AAA communications with external servers.
The Cisco AAA Server MIB provides the following information:
A server is defined as a logical entity that provides any of the three AAA functions. A TACACS+ server consists of all three functions with a single IP address and single TCP port. A RADIUS server can consist of the authentication/accounting pair with a single IP address but distinct UDP ports, or it may be just one of authentication or accounting.
On the Cisco AS5800 only, to request that the Dial Shelf Controller (DSC) [or Dial Shelf Controllers in a redundant configuration] be reloaded at the same time as a reload on the Router Shelf, use the reload components all command. Formerly, to reload a Cisco AS5800, separate reload commands were needed for both the DSC and the Router Shelf.
This new command allows refusal of a peer's request to remote (Point-to-Point Protocol [PPP]) authenticate using Password Authentication Protocol (PAP).
The Event MIB is an asynchronous notification mechanism standardized for use by network management systems using Simple Network Management Protocol (SNMP). The Event MIB provides the ability to monitor Management Information Base (MIB) objects on a local or remote system using SNMP and initiate simple actions whenever a trigger condition is met. By allowing notifications based on events, the Network Management System (NMS) does not need to constantly poll managed devices to find out if something has changed.
Support of the Event MIB has been added to Cisco IOS software to work with a variety of network management systems and, when combined with the currently integrated Expression MIB support, provides a flexible and efficient way to monitor complex conditions on network devices. By allowing SNMP notifications to take place only when a specified condition occurs, Event MIB support reduces the load on affected devices, significantly improving the scalability of network management solutions.
For documentation, see http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121t/121t3/dtevent.htm
This feature improves the current real-time fax over IP (commonly known as fax relay) implementation in Cisco gateways, allowing fax transmissions to work reliably over higher packet loss conditions.
In addition, this feature includes enhanced real-time fax debug capabilities and statistics. These debugs and statistics will give better visibility into the real-time fax operation in the gateway, allowing for improved field diagnostics and troubleshooting.
These improvements include configuration of fax relay ECM (Error Correction Mode) on the VoIP dial peer. ECM provides for error-free page transmission. This mode is available on fax machines that include memory for storage of the page data (usually high-end fax machines).
The Individual SNMP Trap Support feature adds the ability to enable or disable SNMP system management notifications (traps) individually. SNMP traps that can be specified are "authentication", "linkup", "linkdown", and "coldstart". This feature expands the functionality of the snmp-server enable traps snmp command.
For documentation, see http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121t/121t3/dtitraps.htm
This set of features provides enhancements to improve visibility into the line and modem status for the network access server (NAS). The combined features in this document have been developed to monitor the NAS health conditions at the DS0 level, PRI bearer channel level, and modem level.
These features are enabled and disabled by enhanced command-line interface and MIBs.
NAS modem health monitoring is supported by the following features:
The Network Side ISDN PRI Signaling, Trunking, and Switching feature enables Cisco IOS software to replicate the public switched network interface to a PBX that is compatible with the National ISDN (NI) switch type and European Telecommunications Standards Institute (ETSI) Net5 switch type. Routers and PBXs are both traditionally CPE devices with respect to the public switched network interfaces. However, for Voice over IP (VoIP) applications, it is desirable to interface access servers to PBXs with the access server representing the public switched network.
Enterprise organizations use the current VoIP features with Cisco products as a method to reduce costs for long distance phone calls within and outside their organizations. However, there are times that a call cannot go over VoIP and the call needs to be placed using the Public Switched Telephone Network (PSTN). The customer then must have two devices connected to a PBX to allow some calls to be placed using VoIP and some calls to be placed over the PSTN. In contrast, this feature allows Cisco access servers to connect directly to user-side CPE devices such as PBXs and allows voice and data calls to be placed without requiring two different devices to be connected to the PBXs.
The ISDN Network Side PRI Signaling, Trunking, and Switching feature allows Cisco ISDN-enabled access servers to switch calls across interfaces as legacy phone switches do today and to mimic the behavior of the legacy phone switches.
The Preauthentication with ISDN PRI and Channel-Associated Signaling feature allows a Cisco network access server (NAS) to determine if an incoming call may be answered on the basis of the called number, the calling number, or the call type. With an ISDN PRI (Primary Rate Interface), or with Channel-Associated Signaling (CAS), information about an incoming call is available to the NAS before the call is answered. The available call information includes the called station ID (DNIS), the calling station ID (CLID), and the bearer capability (call type).
When an incoming call arrives from the public network switch, but before it is answered, this feature enables the NAS to send the DNIS, CLID, and call type to a RADIUS server for authorization. If the server authorizes the call, then the NAS accepts the call. If the server does not authorize the call, then the NAS sends a disconnect message to the public network switch to reject the call. This feature supports the use of attribute 44 by the RADIUS server application, which allows user authentication based on the CLID at the same time.
This feature also supports the use of new RADIUS attributes. These RADIUS attributes are configured in the RADIUS preauthentication profiles to specify preauthentication behavior. They may also be used, for instance, to specify whether subsequent authentication should occur and, if so, what authentication method should be used.
In the event that the RADIUS server application becomes unavailable, this feature allows a guard timer to be set in the NAS. When the timer expires, the NAS uses a configurable parameter to accept or reject the incoming call without the authorization.
This feature provides inbound and outbound performance optimization for America Online (AOL) users of wholesale dialing services.
First introduced in Cisco IOS Release 12.1(1)AA, this feature is designed to provide more efficiency in the data transfers for AOL users who are using a Cisco network access server (the Cisco AS5800) to communicate with a wholesale dial carrier. It permits the Cisco AS5800 platform to support the maximum number of connections provided by two T3 connections (that is, 1344 connections) running the TCP Clear protocol with typical traffic loads.
There are no new hardware features in the Cisco AS5800 for Cisco IOS Release 12.1(2)T.
The following new software features are supported by the Cisco AS5800 for Cisco IOS Release 12.1(2)T:
The AAA Server Group Deadtimer feature allows each authentication, authorization, and accounting (AAA) server to be fully configured in the server group. Thus, it allows you to direct AAA traffic to separate groups of servers that have different operational characteristics.
With the introduction of this feature, deadtime has been added as a new attribute to the server group structure. In addition, a separate timer has been attached to each server host in every server group. Therefore, when a server is found to be unresponsive after numerous retransmissions and time-outs, the server is assumed to be dead. The timers attached to each server host in all server groups are triggered. In essence, the timers are checked and subsequent requests to a server (once it is assumed dead) are directed to alternate timers, if configured. When the network access server receives a reply from the server, it checks and stops all configured timers (if running) for that server in all server groups.
If the timer has expired, only the server to which the timer is attached is assumed to be alive. This becomes the only server that can be tried for later AAA requests using the server groups to which the timer belongs.
The feature allows a Cisco network access server (NAS) to determine if an incoming call may be answered on the basis of the called number, the calling number, or the call type. With an ISDN PRI (Primary Rate Interface), information about an incoming call is available to the NAS before the call is answered. The available call information includes the called station ID (DNIS), the calling station ID (CLID), and the bearer capability (call type).
When an incoming call arrives from the public network switch, but before it is answered, this feature enables the NAS to send the DNIS, CLID, and call type to a RADIUS server for authorization. If the server authorizes the call, then the NAS accepts the call. If the server does not authorize the call, then the NAS sends a disconnect message to the public network switch to reject the call. This feature supports the use of attribute 44 by the RADIUS server application, which allows user authentication based on the CLID at the same time.
This feature also supports the use of new RADIUS attributes. These RADIUS attributes are configured in the RADIUS preauthentication profiles to specify preauthentication behavior. They may also be used, for instance, to specify whether subsequent authentication should occur and, if so, what authentication method should be used.
In the event that the RADIUS server application becomes unavailable, this feature allows a guard timer to be set in the NAS. When the timer expires, the NAS uses a configurable parameter to accept or reject the incoming call without the authorization.
There are no new hardware features in the Cisco AS5800 for Cisco IOS Release 12.1(1)T.
The following new software feature is supported by the Cisco AS5800 for Cisco IOS Release 12.1(1)T:
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Note Certain devices are limited in their support of H.450. The Cisco 1700 and ubr820 platforms do not support Interactive Voice Response (IVR). Therefore, these platforms are not able to act as H.450 Transferring endpoints. |
The Cisco AS5800 supports the following MIBs:
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Note Cisco Management Information Base (MIB) User Quick Reference is no longer published. If you have an account with CCO, you can find the latest list of MIBs supported by Cisco. To reach the Cisco Network Management Toolkit, go to CCO, press Login, and click to Software Center: Network Mgmt Products: Cisco Network Management Toolkit: Cisco MIB. |
Caveats describe unexpected behavior in Cisco IOS software releases. Severity 1 caveats are the most serious caveats; severity 2 caveats are less serious.
For information on caveats in Cisco IOS Release 12.1 T, see Caveats for Cisco IOS Release 12.1T.
All caveats in Cisco IOS Release 12.1 are also in Cisco IOS Release 12.1 T.
For information on caveats in Cisco IOS Release 12.1, see Caveats for Cisco IOS Release 12.1 , which lists severity 1 and 2 caveats and is located on CCO and the Documentation CD-ROM.
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Note If you have an account with CCO, you can use Bug Navigator II to find caveats of any severity for any release. To reach Bug Navigator II, go to CCO and press Login. Then go to Software Center: Cisco IOS Software: Cisco Bugtool Navigator II. Another option is to go to http://www.cisco.com/support/bugtools. |
The following sections describe the documentation available for the Cisco AS5800. These documents consist of hardware and software installation guides, Cisco IOS configuration and command references, system error messages, and other documents.
Documentation is available as printed manuals or electronic documents.
Use these release notes with these documents:
The following documents are specific to Cisco IOS Release 12.1 and are located on CCO and the Documentation CD-ROM:
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Note If you have an account with CCO, you can use Bug Navigator II to find caveats of any severity for any release. To reach Bug Navigator II, go to CCO and press Login. Then go to Software Center: Cisco IOS Software: Cisco Bugtool Navigator II. Another option is to go to http://www.cisco.com/support/bugtools. |
These documents are available for the Cisco AS5800 on CCO and the Documentation CD-ROM:
On CCO at:
Technical Documents: Documentation Home Page: Access Servers and Access Routers: Access Servers: Cisco AS5800
On the Documentation CD-ROM at:
Cisco Product Documentation: Access Servers and Access Routers: Access Servers: Cisco AS5800
Feature modules describe new features supported by Cisco IOS Release 12.1 XL and are updates to the Cisco IOS documentation set. A feature module consists of a brief overview of the feature, benefits, configuration tasks, and a command reference. As updates, the feature modules are available online only. Feature module information is incorporated in the next printing of the Cisco IOS documentation set.
On CCO at:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: New Feature Documentation
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: New Feature Documentation
The Cisco IOS software documentation set consists of the Cisco IOS configuration guides, Cisco IOS command references, and several other supporting documents that are shipped with your order in electronic form on the Documentation CD-ROM—unless you specifically ordered the printed versions.
Each module in the Cisco IOS documentation set consists of two books: a configuration guide and a corresponding command reference. Chapters in a configuration guide describe protocols, configuration tasks, Cisco IOS software functionality, and contain comprehensive configuration examples. Chapters in a command reference provide complete command syntax information. Use each configuration guide with its corresponding command reference.
On CCO and the Documentation CD-ROM, two master hot-linked documents provide information for the Cisco IOS software documentation set.
On CCO at:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Configuration Guides and Command References
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Configuration Guides and Command References
Table 5 describes the contents of the Cisco IOS Release 12.1 software documentation set for the AS5800, which is available in electronic form and in printed form if ordered.
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Note You can find the most current Cisco IOS documentation on CCO and the Documentation CD-ROM. These electronic documents may contain updates and modifications made after the hard-copy documents were printed. |
On CCO at:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1
| Books | Major Topics |
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| Cisco IOS User Interfaces |
| Using Cisco IOS Software |
| Preparing for Dial Access |
| Interface Configuration Overview |
| IP Addressing and Services |
| AppleTalk and Novell IPX Overview |
| Apollo Domain, Banyan VINES, DECnet, ISO CLNS, and XNS Overview |
| Multiservice Applications Overview |
| Quality of Service Overview |
| Security Overview |
| Cisco IOS Switching Services Overview |
| Wide-Area Networking Overview |
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Note Cisco Management Information Base (MIB) User Quick Reference is no longer published. If you have an account with CCO, you can find the current list of MIBs supported by Cisco. To reach the Cisco Network Management Toolkit, go to CCO, press Login, and click to Software Center: Network Mgmt Products: Cisco Network Management Toolkit: Cisco MIB. |
You can access the most current Cisco documentation on the World Wide Web at http://www.cisco.com. Translated documentation can be accessed at http://www.cisco.com/public/countries_languages.shtml.
Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM is updated monthly. Therefore, it is probably more current than printed documentation. The CD-ROM package is available as a single unit or as an annual subscription.
Registered CCO users can order the Documentation CD-ROM and other Cisco Product documentation through our online Subscription Services at http://www.cisco.com/cgi-bin/subcat/kaojump.cgi.
Nonregistered CCO users can order documentation through a local account representative by calling Cisco's corporate headquarters (California, USA) at 408 526-4000 or, in North America, call 800 553-NETS (6387).
Cisco provides Cisco Connection Online (CCO) as a starting point for all technical assistance. Warranty or maintenance contract customers can use the Technical Assistance Center. All customers can submit technical feedback on Cisco documentation using the web, e-mail, a self-addressed stamped response card included in many printed documents, or by sending mail to Cisco.
Cisco continues to revolutionize how business is done on the Internet. Cisco Connection Online is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information and resources at anytime, from anywhere in the world. This highly integrated Internet application is a powerful, easy-to-use tool for doing business with Cisco.
CCO's broad range of features and services helps customers and partners to streamline business processes and improve productivity. Through CCO, you will find information about Cisco and our networking solutions, services, and programs. In addition, you can resolve technical issues with online support services, download and test software packages, and order Cisco learning materials and merchandise. Valuable online skill assessment, training, and certification programs are also available.
Customers and partners can self-register on CCO to obtain additional personalized information and services. Registered users may order products, check on the status of an order and view benefits specific to their relationships with Cisco.
You can access CCO in the following ways:
You can e-mail questions about using CCO to cco-team@cisco.com.
The Cisco Technical Assistance Center (TAC) is available to warranty or maintenance contract customers who need technical assistance with a Cisco product that is under warranty or covered by a maintenance contract.
To display the TAC web site that includes links to technical support information and software upgrades and for requesting TAC support, use www.cisco.com/techsupport.
To contact by e-mail, use one of the following:
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In North America, TAC can be reached at 800 553-2447 or 408 526-7209. For other telephone numbers and TAC e-mail addresses worldwide, consult the following web site: http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml.
If you have a CCO login account, you can access the following URL, which contains links and tips on configuring your Cisco products:
http://www.cisco.com/kobayashi/technotes/serv_tips.shtml
This URL is subject to change without notice. If it changes, point your Web browser to CCO, press Login, and click on this path: Technical Assistance Center: Technical Tips.
The following sections are provided from the Technical Tips page:
If you are reading Cisco product documentation on the World Wide Web, you can submit technical comments electronically. Click Feedback in the toolbar and select Documentation. After you complete the form, click Submit to send it to Cisco.
You can e-mail your comments to bug-doc@cisco.com.
To submit your comments by mail, for your convenience many documents contain a response card behind the front cover. Otherwise, you can mail your comments to the following address:
Cisco Systems, Inc.
Document Resource Connection
170 West Tasman Drive
San Jose, CA 95134-9883
We appreciate and value your comments.
Posted: Fri Sep 29 14:06:14 PDT 2000
Copyright 1989-2000©Cisco Systems Inc.