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Release Notes for Cisco AS5300 Universal Access Servers for Cisco IOS Release 12.1 T

Release Notes for Cisco AS5300 Universal Access Servers for Cisco IOS Release 12.1 T

August 2, 2000

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.

Special Note: Cisco IOS Release 12.1(3)T and 12.1(3a)T1 Voice Issues

Because of a number of issues with H.323 and SIP voice support on the Cisco AS5300, Cisco AS5800, Cisco 2600 series, Cisco 3600 series, and Cisco MC3810 which arose in Cisco IOS Release 12.1 T, use of 12.1(3)T and 12.1(3a)T1 is strongly discouraged.

Cisco IOS Release 12.1(3)T and 12.1(3a)T1 is being made available for dial applications only.

The problems with voice in this release are being tracked in the following DDTS reports:

CSCdr78203 PC-to-phone one way audio problem

CSCdr79120 Some information elements not passed between ISDN and H.323

CSCdr78 A simple call via a SW (T1pri) cannot connect

CSCdr75660 Like CSCdr64591. Alerting but no ringback in ISDN

CSCdr90963 Inband tones/announcements do not propagate for most ISDN switches

CSCdr90711 Internet Call Waiting times out

For a more detailed Field Notice report see: http://www.cisco.com/warp/public/770/45.html.

These release notes for the Cisco AS5300 universal access servers describe the enhancements provided in Cisco IOS Release 12.1(3a) T1. These release notes are updated as needed.

For a list of the software caveats that apply to Cisco IOS Release 12.1(3a)T1, see Caveats for Cisco   IOS Release  12.1 T 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. 

Contents

These release notes describe the following topics:

Introduction

The Cisco AS5300 is a versatile data communications platform that performs two functions in a single modular chassis depending on the installed feature cards and IOS images:

The remote access server is intended for Internet service providers (ISPs), telecommunications carriers, and other service providers that offer managed Internet connections and medium to large sites that provide both digital and analog access to users on an enterprise network. By terminating both analog and digital calls on the same chassis simultaneously, the access server provides a clear, simple, and easy migration path from analog dial access services to digital dial access services.

The Cisco AS5300/Voice Gateway is a versatile data communications platform that provides the functions of an access server, router, and digital modem(s) in a single modular chassis. The Cisco AS5300 includes three feature card slots: one holds a T1/E1/PRI feature card, and the other two support modem feature cards or voice digital signal processor (DSP) feature cards. When equipped with modem cards, the Cisco AS5300 serves as a remote access concentrator for dial-up (modem or ISDN) Internet access. When equipped with voice feature cards and Voice IOS, the Cisco AS5300/Voice Gateway serves as a voice (VoIP) gateway. By using one slot for modems and the other for voice DSPs, the Cisco AS5300 can serve in both capacities. Modem, voice, or fax calls are routed to the appropriate cards/resources via Dialed Number Identification Service (DNIS).

For information on new features and Cisco IOS commands supported by Cisco IOS Release 12.1(3a)T1, see "New and Changed Information" section and "Related Documentation" section.

System Requirements

This section describes the system requirements for Cisco IOS Release12.1(3a)T1:

Memory Recommendations


Table 1: Memory Recommendations for the Cisco AS5300
Feature Set Image Name Flash
Memory
Recommended 		DRAM
Memory
Recommended 		Runs From

IP

c5300-i-mz

16 MB

64 MB

RAM

IP Plus

c5300-is-mz

16 MB

64 MB

RAM

IP Plus IPSec 56

c5300-is56i-mz

16 MB

64 MB

RAM

IP Plus IPSec 3DES

c5300-ik2s-mz

16 MB

64 MB

RAM

IP/IPX/AT/DEC

c5300-d-mz

16 MB

64 MB

RAM

IP/IPX/AT/DEC Plus

c5300-ds-mz

16 MB

64 MB

RAM

Enterprise

c5300-j-mz

16 MB

64 MB

RAM

Enterprise Plus

c5300-js-mz

16 MB

64 MB

RAM

Enterprise Plus IPSec 56

c5300-js56i-mz

16 MB

64 MB

RAM

Enterprise Plus IPSec 3DES

c5300-jk2s-mz

16 MB

64 MB

RAM

Hardware Supported

Cisco IOS Release 12.1(3a)T1 supports the Cisco AS5300.

For detailed descriptions of the new hardware features, see "New and Changed Information" section.


Table 2: Supported Interfaces for the Cisco AS5300
Interface and
Modem Cards 		Product Description

Interface Cards

Ethernet RJ-45 (included with unit)

Ethernet/Fast Ethernet (RJ-45) (included with unit)

ISDN PRI

E1-G.703/G.704

Channelized T1 (4 ports) without serial support

Channelized T1 (4 ports) with 4 serial ports

Channelized T1 (8 ports) with 4 serial ports

Channelized E1 (4 ports) without serial support

Channelized E1 (4 ports) with 4 serial ports

Channelized E1 (8 ports) with 4 serial ports

HMM/48 channel

HMM/54 channel

HMM/60 channel

Interface Cards (continued)

DMM/48 channel

DMM/96 channel

DMM/108 channel

DMM/120 channel

48-Channel, TI C549-based VoIP feature card (Uses High Density AS53-VOXD DSP modules)

60-Channel, TI C549-based VoIP feature card (Uses High Density AS53-VOXD DSP modules)

24-Channel, TI C542-based VoIP feature card (First generation, uses AS53-6VOX DSP modules)

48-Channel, TI C542-based VoIP feature card (First generation, uses AS53-6VOX DSP modules)

Interface Cards

MICA modems

Microcom 56K modems

Determining the Software Version

To determine the version of Cisco IOS software running on your Cisco AS5300, log in to the Cisco AS5300 and enter the show version EXEC command:

    router> show version
Cisco Internetwork Operating System Software 
IOS (tm) 12.1 Software c5300-i-mz, Version 12.1(3a) T1, RELEASE SOFTWARE

Upgrading to a New Software Release

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

Microcode and Modem Code Software

Microcode software images are bundled with the system software image--with the exception of the Channel Interface Processor (CIP) microcode (all system software images). 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 AS5300.

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


Table 3: Current Modem Code Versions for the Cisco AS5300
Modem Module Current Bundled Modem Code Version Minimum Cisco IOS Release Required

Microcom modems

Microcom Version 5.1.20

12.0(5)T and later

MICA modems

MICA portware Version 2.7.1.0

12.0(5)T and later

Feature Set Tables

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.

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 AS5300 in Cisco IOS Release 12.1(3a)T1 and uses the following conventions:

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.


Table 4: Feature List by Feature Set for the Cisco AS5300
Feature In1 Software Images by Feature Set
IP IP
Plus 		IP
Plus
IPsec
56 		IP Plus
IPsec
3DES 		Desk-
top 		Desk-
top
Plus 		Enter-
prise 		Enter-
prise
Plus 		Enter-
prise
Plus
IPsec 56 		Enter-
prise
Plus
IPsec
3DES
New Features in 12.1(3a)T1

AAA Session MIB

(3)

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Circuit Interface Identification MIB

(3)

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Cisco AAA Server MIB and Additional Enhancements for the Cisco AS5300 and Cisco AS5800

(3)

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Event MIB

(3)

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Fax Relay Packet Loss Concealment

(3)

No

Yes

Yes

Yes

No

Yes

No

Yes

Yes

Yes

Individual SNMP Trap Support

(3)

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Interactive Voice Response Version 2.0 on Cisco VoIP Gateways

(3)

No

Yes

Yes

Yes

No

Yes

No

Yes

Yes

Yes

Media Gateway Control Protocol Residential Gateway Support

(3)

No

Yes

Yes

Yes

No

Yes

No

Yes

Yes

Yes

Monitoring Resource Availability on Cisco AS5300 Universal Access Servers

(3)

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Preauthentication with ISDN PRI and Channel-Associated Signaling

(3)

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Internet

IP Routing

H.323 Version 2 Support

No

Yes

Yes

Yes

No

Yes

No

Yes

Yes

Yes

Asynchronous Serial Traffic over UDP

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

LAN Support

Subnetwork Bandwidth Manager

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

CLI String Search

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Parse Bookmarks

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Dynamic Multiple Encaps for Dial-in over ISDN

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

ISDN LAPB-TA

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

L2TP Dialout

No

Yes

Yes

Yes

No

Yes

Yes

Yes

Yes

Yes

OS_IFSS

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

OSPF Flooding Reduction

(2)

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

SS7

No

Yes

Yes

Yes

No

Yes

No

Yes

Yes

Yes

Management

CNS Client for Cisco IOS Software

No

No

Yes

Yes

No

No

Yes

Yes

Yes

Yes

CNS client for IOS 12.05(t) (aka IPSec Policy Agent II)

No

No

No

No

No

No

Yes

Yes

Yes

Yes

ISDN MIB RFC 2127

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Mulitcast Routing Monitor

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Process MIB

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Time-Based Access Lists Using Time Ranges

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Miscellaneous

Cisco IOS DHCP Server

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Cisco Store-and-Forward Fax

No

Yes

Yes

Yes

No

Yes

No

Yes

Yes

Yes

IPX Infrastructure Enhancements

No

No

No

No

Yes

Yes

Yes

Yes

Yes

Yes

TDM Hairpinning

No

Yes

Yes

Yes

No

Yes

No

Yes

Yes

Yes

Voice over IP Q.SIG Network Transparency for Cisco AS5300

No

Yes

Yes

Yes

No

Yes

No

Yes

Yes

Yes

Quality of Service

Parse Bookmarks

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Security

AAA Server Group Deadtimer

(2)

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

AAA Server Group Enhancements

(2)

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Preauthentication with ISDN PRI

(2)

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Resource Pool Management

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Resource Pool Management with Direct Remote Services

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Virtual Console

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Switching

Media Gateway Control Protocol for the Cisco AS5300 Voice/Gateway

(1)

No

Yes

Yes

Yes

No

Yes

No

Yes

Yes

Yes

Voice Technologies

Configurable Timers in H.225

(2)

No

Yes

Yes

Yes

No

Yes

No

Yes

Yes

Yes

Ecosystem Gatekeeper Interoperability Enhancements, Phase 2

(2)

No

Yes

Yes

Yes

No

Yes

No

Yes

Yes

Yes

H.323 Support for Virtual Interfaces

(2)

No

Yes

Yes

Yes

No

Yes

No

Yes

Yes

Yes

Inband MICA Control Message for PPP Framing

(2)

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

PRI/Q.931 Signaling Backhaul for Call Agent Applications

(1)

No

Yes

Yes

Yes

No

Yes

No

Yes

Yes

Yes

Simple Gateway Control Protocol (SGCP)

No

Yes

Yes

Yes

No

Yes

No

Yes

Yes

Yes

1The number in the "In" column indicates the Cisco IOS release when the interface was introduced. For example, (1) means an interface was introduced in Cisco IOS Release 12.1(1) T. If a cell in this column is empty, the interface was included in the initial base release.

New and Changed Information

The following sections list the new hardware and software features supported by the Cisco AS5300 for Cisco IOS Release 12.1(3a)T1.

New Hardware Features in Cisco IOS Release 12.1(3a) T1

There are no new hardware feature in the Cisco AS5300 for Cisco IOS Release 12.1(3a) T1.

New Software Features in Cisco IOS Release 12.1(3a) T1

The following new software features are supported by the Cisco AS5300 for Cisco IOS Release 12.1(3a) T1:

AAA Session MIB

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.

Circuit Interface Identification MIB

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.

Cisco AAA Server MIB and Additional Enhancements for the Cisco AS5300 and Cisco AS5800

Addition to show caller Command

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:

Cisco AAA Server MIB

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.

Modification to reload Command for the Cisco AS5800

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.

Point-to-Point Password Authentication Protocol Refusal

This new command allows refusal of a peer's request to remote (Point-to-Point Protocol [PPP]) authenticate using Password Authentication Protocol (PAP).

Event MIB

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

Fax Relay Packet Loss Concealment

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).

Individual SNMP Trap Support

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

Interactive Voice Response Version 2.0 on Cisco VoIP Gateways

IVR Version 2.0 is the fourth release of IVR and TCL scripting on Cisco IOS VoIP gateways. The Cisco IVR feature (first made available in Cisco IOS Release 12.0(3)T and 12.0(7)T) provides IVR capabilities using TCL scripts.

IVR Version 2.0 is made up of several separate components which are described individually in the section that follows. These new features include:

These features add scalability and enable the IVR scripting functionality on VoIP legs. In addition, support for RTSP enables VoIP gateways to play messages from RTSP-compliant announcement servers.

Media Gateway Control Protocol Residential Gateway Support

MGCP Residential Gateway Support (RGW) merges the Simple Gateway Control Protocol (SGCP) 1.1 with the Media Gateway Control Protocol (MGCP) 0.1. The protocols describe the types of calls a network gateway can accept and what it does with the calls it receives. The merged set enables a single gateway to receive commands from either protocol.

A network gateway handles the translation between audio signals and the packet network. The gateway interacts with a Call Agent, which performs signal and call processing on the gateway's calls. MGCP RGW supports both Residential Gateways and Trunking Gateways.

A Residential Gateway (RGW) provides the interface between analog calls from a telephone or PBX and the Voice over IP network. The Cisco uBR924 and 2600 platforms are RGWs. Additional features supported on both RGWs are call waiting, stutter dialtone, and modem and fax calls. The uBR924 platform also supports onhook caller ID, distinctive ringing, and ring splash.

A Trunking Gateway (TGW) provides the interface between Public Switched Telephone Network (PSTN) trunks and the Voice over IP network. The Cisco AS5300 and 3660 platforms are TGWs. Additional features supported on both TGWs are SS7, modem, and fax calls, and T1 interfaces. The AS5300 also supports 911 outgoing calls on T1 lines, PRI/ISDN signaling, and E1 interfaces.

Monitoring Resource Availability on Cisco AS5300 Universal Access Servers

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 feature are enabled and disabled by enhanced command-line interface and MIBs.

NAS modem health monitoring is supported by the following features:

Preauthentication with ISDN PRI and Channel-Associated Signaling

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.

New Hardware Features in Cisco IOS Release 12.1(2)T

There are no new hardware feature in the Cisco AS5300 for Cisco IOS Release 12.1(2)T.

New Software Features in Cisco IOS Release 12.1(2)T

The following new software features are supported by the Cisco AS5300 for Cisco IOS Release 12.1(2)T:

AAA Server Group Deadtimer (CSCdp13160)

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, deadtimer 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.

Configurable Timers in H.225 (CSCdp30190)

The Configurable Timers in H.225  feature allows users to configure the H.255 TCP connection timeout value for all outgoing call attempts (on a per VoIP dial-peer basis).

In previous releases of the Cisco IOS software, the call attempt timeout was 15 seconds and could not be changed. In some cases, however, users might need a shorter timeout value to facilitate a faster fail-over. In other cases, users might need a greater timeout value.

The Configurable Timers in H.225 feature addresses those needs by allowing the user to override the default of 15 seconds and configure the timeout value.

Ecosystem Gatekeeper Interoperability Enhancements, Phase 2 (CSCdp70719)

The Ecosystem Gatekeeper Interoperability Enhancements, Phase 2  feature supplements the existing support for alternate gatekeepers and adds support for the alternate gatekeeper field (altGKInfo) to the admission rejection (ARJ). This allows a gateway to move between gatekeepers during the admission request (ARQ) phase.

H.323 Support for Virtual Interfaces

The H.323 Support for Virtual Interfaces  feature allows users to configure the IP address of the gateway, so that the IP address included in the H.323 packet is deterministic and consistently indicates the same address for the source.

In previous releases of the Cisco IOS software, the source address included in the H.323 packet could vary depending on the protocol (RAS, H.225, H.245, or RTP). This makes it difficult to configure firewall applications to work with H.323 messages.

The H.323 Support for Virtual Interfaces feature addresses that difficulty by allowing the user to explicitly configure an IP address to be used for all protocols.

Inband MICA Control Messages for PPP Framing (CSCdk36386 and CSCdp88103)

Dialin internet connections typically start in character mode to let the general user log in and select a preferred service. When Cisco IOS determines that the user wants a framed interface protocol during the call, such as PPP or SLIP, commands are sent to the MICA modem so it will provide hardware assistance with the framing. To avoid loss or misinterpretation of framed data during the transition, these commands must be issued at precise times with respect to the data being sent and received. The Inband MICA Control Messages for PPP Framing  feature allows the MICA modem framing commands to be sent in the data stream itself, which greatly simplifies Cisco IOS's tasks in achieving precision timing, and reduces timeouts during PPP startup and also reduces startup time.

OSPF Flooding Reduction (CSCdp80470)

The explosive growth of the Internet has placed the focus on the scalability of Interior Gateway Protocols such as OSPF. The networks using OSPF are becoming larger every day and will continue to expand to accommodate the demand to connect to the Internet.

Internet Service Providers and customers with large networks have regularly complained that OSPF has a traffic overhead, even when the network topology is stable.

By design, OSPF requires link-state advertisements (LSAs) to be refreshed as they expire after 3600 sec. Some implementations have tried to improve the flooding by reducing the frequency to refresh from approximately 30 to 50 minutes. This solution reduces the amount of refresh traffic but requires at least one refresh before the LSA expires.

The OSPF Flooding Reduction  feature works by reducing unnecessary refreshing and flooding of already known and unchanged information. To achieve this reduction, the LSAs are now flooded with the higher bit set, thus making them Do Not Age (DNA) LSAs.

All OSPF customers with generally stable networks will benefit from the reduced traffic overhead provided by the OSPF Flooding Reduction feature.

Preauthentication with ISDN PRI (CSCdm82434)

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.

New Hardware Features in Cisco IOS Release 12.1(1) T

There are no new hardware features in the Cisco AS5300 for Cisco IOS Release 12.1(1) T.

New Software Features in Cisco IOS Release 12.1(1) T

The following new software features are supported by the Cisco AS5300 for Cisco IOS Release 12.1(1) T:

AAA DNIS Map for Authorization

The AAA DNIS Map for Authorization  feature allows you to select AAA server groups--to which authorization requests can now be sent--using DNIS. This feature is an enhancement to Selecting AAA Server Groups Based on DNIS, Cisco IOS Release 12.0(7)T, which allows you to send authentication and accounting requests when selecting a AAA server group using DNIS.

With the introduction of this feature, authorization requests are available so that you can specify the same server group for AAA services or a separate server group for each AAA service. Thus, you can configure authorization on different physical devices and provide fail-over backup support.

Cisco H.323 Version 2 Phase 2

Cisco H.323 Version 2 Phase 2  upgrades Cisco IOS software by adding several optional features of the H.323 Version 2 specification and facilitates customized extensions to the Cisco Gatekeeper.

The Fast Connect feature allows endpoints to establish media channels without waiting for a separate H.245 connection to be opened. This streamlines the number of messages that are exchanged and the amount of processing that must be done before endpoint connections can be established.
Through H.245 tunneling, H.245 messages are encapsulated within Q.931 messages without using a separate H.245 TCP connection. When tunneling is enabled, one or more H.245 messages can be encapsulated in any Q.931 message. H.245 tunneling is not supported as a standalone feature; initiation of H.245 tunneling procedures can be initiated only by using the dtmf-relay command, and only from an active Fast Connect call. Furthermore, if dtmf-relay is configured on a Version 2 VoIP dial peer and the active call has been established by using Fast Connect, tunneling procedures initiated by the opposite endpoint are accepted and supported.
H.245 tunneling is backward compatible with H.323 Version 1 configurations.
Call Transfer allows an H.323 endpoint to redirect an answered call to another H.323 endpoint. Cisco gateways support H.450.2 Call Transfer as the transferred and transferred-to party. The transferring endpoint must be an H.450-capable terminal; the Cisco gateway cannot act as the transferring endpoint. Gatekeeper-controlled or Gatekeeper-initiated Call Transfer is not supported.
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.
Call Deflection is a feature under H.450.3 Call Diversion (Call Forwarding) that allows a called H.323 endpoint to redirect the unanswered call to another H.323 endpoint. Cisco gateways support H.450.3 Call Deflection as the originating, deflecting, and deflected-to gateway. The Cisco gateway as the deflecting gateway will support invocation of Call Deflection only by using an incoming PRI QSIG message (a Call Deflection cannot be invoked by using any other trunk type).
Call Deflection is a feature under H.450.3 Call Diversion (Call Forwarding) that allows a called H.323 endpoint to redirect the unanswered call to another H.323 endpoint. Cisco gateways support H.450.3 Call Deflection as the originating, deflecting, and deflected-to gateway. The Cisco gateway as the deflecting gateway will support invocation of Call Deflection only by using an incoming PRI QSIG message (a Call Deflection cannot be invoked by using any other trunk type).
This feature provides the Gatekeeper with a configurable string that identifies the voice port or T1/E1 span from which an incoming call entered the ingress gateway. This is done using a Cisco proprietary, nonstandard field that has been added to the ARQ message sent by the ingress gateway. The string in the ARQ corresponds to the setting of the voice-port description command.

Dial Peer Enhancements

The Dial Peer E nhancements to the dial peer configuration limit complexity of dial planning and reduce the amount of effort in creating dial peer entries. These include additional dial string symbols, translation rule implementation, number translation, and digit stripping option.

Media Gateway Control Protocol for the Cisco AS5300 Voice/Gateway

The Media Gateway Control Protocol (MGCP)  for the Cisco AS5300 is a protocol that media gateways use for passing voice calls from the Public Switched Telephone Network (PSTN) to call agents in an internet telephony network. Media gateways include trunking gateways, access gateways, and network access servers. The call agents provide the call control intelligence.

Caveat for 12.1(1)T:

The show mgcp command displays the status of mgcp on the system. The display includes a line 

MGCP simple-sdp DISABLED, MGCP cisco fgdos DISABLED

These two commands are for Cisco use only in Release 12.1(1)T.

PRI/Q.931 Signaling Backhaul for Call Agent Applications

PRI/Q.931 Signaling Backhaul for Call Agent Applications  provides the ability to reliably transport the signaling (Q.931 and above layers) from a PRI trunk that is physically connected to a media gateway (for example, a Cisco AS5300) to a media gateway controller (Cisco VSC3000) for processing.

The Cisco gateway based Settlement protocol interacts between carriers to create a single authentication at initialization. Two new features, Roaming and Multiple Roots have been added in Cisco IOS Release 12.1(1)T to enhance the OSP. The VoIP/Open Settlement Protocol (OSP) feature offers the ability to authorize, route calls, and billings between two different ISPs via a trusted third party, the settlement clearing house, which is the OSP server. Cisco has built this OSP client on Cisco 2600 series, Cisco 3600 series, and Cisco AS5300 platforms, and partnered with a few companies (TransNexus, GRIC, etc.) that provide OSP servers.

The code for this feature is an encrypted image.

Note   Before you can download 56-bit or 56i encryption images, you must first go through the entitlement process. This process makes sure your system is coming from a registered DNS address and that you're not coming from an encryption-restricted country (Iraq, Libya, etc.). You (and your customers) can entitle yourselves by filling out the forms located at the following URL:
http://www.cisco.com/kobayashi/library/12.0/

Session Initiation Protocol Gateway Call Flows

SIP  is a new protocol developed by the Internet Engineering Task Force (IETF) Multiparty Multimedia Session Control (MMUSIC) Working Group as an alternative to the ITU-T H.323 specification. SIP is defined by RFC 2543 and is used for multimedia call session setup and control over IP networks.

SIP uses six request methods:

The following types of responses are used by SIP and generated by the Cisco SIP gateway:

Settlement Plus Roaming and PKI Multiple Roots on Cisco Access Platforms (Settlements for Packet Voice, Phase 2)

The Cisco gateway based Settlement  protocol interacts between carriers to create a single authentication at initialization. Two new features, Roaming and Multiple Roots have been added in Cisco IOS Release 12.1(1)T to enhance the OSP. The VoIP/Open Settlement Protocol (OSP) feature offers the ability to authorize, route calls, and billings between two different ISPs via a trusted third party, the settlement clearing house, which is the OSP server. Cisco has built this OSP client on Cisco 2600 series, Cisco 3600 series, and Cisco AS5300 platforms, and partnered with a few companies (TransNexus, GRIC, etc.) that provide OSP servers. The code for this feature is an encrypted image.

Note   Before you can download 56-bit or 56i encryption images, you must first go through the entitlement process. This process makes sure your system is coming from a registered DNS address and that you're not coming from an encryption-restricted country (Iraq, Libya, etc.). You (and your customers) can entitle yourselves by filling out the forms located at the following URL:
http://www.cisco.com/kobayashi/library/12.0/

Limitations and Restrictions

MIBs

Old Cisco Management Information Bases (MIBs) will be replaced in a future release. Currently, OLD-CISCO-* MIBs are being converted into more scalable MIBs--without affecting existing Cisco IOS products or NMS applications. You can update from deprecated MIBs to the replacement MIBs as shown in Table 5.


Table 5: Deprecated and Replacement MIBs
Deprecated MIB Replacement

OLD-CISCO-APPLETALK-MIB

RFC1243-MIB

OLD-CISCO-CHASSIS-MIB

ENTITY-MIB

OLD-CISCO-CPUK-MIB

To be decided

OLD-CISCO-DECNET-MIB

To be decided

OLD-CISCO-ENV-MIB

CISCO-ENVMON-MIB

OLD-CISCO-FLASH-MIB

CISCO-FLASH-MIB

OLD-CISCO-INTERFACES-MIB

IF-MIB CISCO-QUEUE-MIB

OLD-CISCO-IP-MIB

To be decided

OLD-CISCO-MEMORY-MIB

CISCO-MEMORY-POOL-MIB

OLD-CISCO-NOVELL-MIB

NOVELL-IPX-MIB

OLD-CISCO-SYS-MIB

(Compilation of other OLD* MIBs)

OLD-CISCO-SYSTEM-MIB

CISCO-CONFIG-COPY-MIB

OLD-CISCO-TCP-MIB

CISCO-TCP-MIB

OLD-CISCO-TS-MIB

To be decided

OLD-CISCO-VINES-MIB

CISCO-VINES-MIB

OLD-CISCO-XNS-MIB

To be decided

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.

Caveats

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 Release12.1 T . 

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.

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.

Related Documentation

The following sections describe the documentation available for the Cisco AS5300. 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:

Release-Specific Documents

The following documents are specific to Cisco IOS Release 12.1 and are located on CCO  and the Documentation CD-ROM:

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: Release Notes: Cross-Platform Release Notes
Technical Documents
See Caveats for Cisco IOS Release 12.1  and Caveats for Cisco IOS Release  12.1 T, which contain caveats applicable to all platforms for all maintenance releases of Cisco IOS Release 12.1 and Cisco IOS Release 12.1 T.
On CCO  at:
Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Caveats
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Caveats

Platform-Specific Documents

These documents are available for the Cisco AS5300 on CCO  and the Documentation CD-ROM:

On CCO  at:
Technical Documents: Documentation Home Page: Access Servers and Access Routers: Access Servers: Cisco AS5300
On the Documentation CD-ROM at:
Cisco Product Documentation: Access Servers and Access Routers: Access Servers: Cisco AS5300

Feature Modules

Feature modules describe new features supported by Cisco IOS Release 12.1(3a)T1 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

Cisco IOS Software Documentation Set

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.

Documentation Modules

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

Cisco IOS Release 12.1 Documentation Set

Table 6 describes the contents of the Cisco IOS Release 12.1 software documentation set, which is available in electronic form and in printed form if ordered.

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


Table 6: Cisco IOS Software Release 12.1 Documentation Set
Books Major Topics

  • Cisco IOS Configuration Fundamentals Configuration Guide

  • Cisco IOS Configuration Fundamentals Command Reference

Cisco IOS User Interfaces
Cisco IOS File Management
Cisco IOS System Management

  • Cisco IOS Bridging and IBM Networking Configuration Guide

  • Cisco IOS Bridging and IBM Networking Command Reference, Volume I

  • Cisco IOS Bridging and IBM Networking Command Reference, Volume II

Using Cisco IOS Software
Overview of SNA Internetworking
Bridging
IBM Networking

  • Cisco IOS Dial Services Configuration Guide: Terminal Services

  • Cisco IOS Dial Services Configuration Guide: Network Services

  • Cisco IOS Dial Services Command Reference

Preparing for Dial Access
Modem Configuration and Management
ISDN and Signaling Configuration
PPP Configuration
Dial-on-Demand Routing Configuration
Dial-Backup Configuration
Terminal Service Configuration
Large-Scale Dial Solutions
Cost-Control Solutions
Virtual Private Networks
X.25 on ISDN Solutions
Telco Solutions
Dial-Related Addressing Services
Interworking Dial Access Scenarios

  • Cisco IOS Interface Configuration Guide

  • Cisco IOS Interface Command Reference

Interface Configuration Overview
Configuring LAN Interfaces
Configuring Serial Interfaces
Configuring Logical Interfaces

  • Cisco IOS IP and IP Routing Configuration Guide

  • Cisco IOS IP and IP Routing Command Reference

IP Addressing and Services
IP Routing Protocols
IP Multicast

  • Cisco IOS AppleTalk and Novell IPX Configuration Guide

  • Cisco IOS AppleTalk and Novell IPX Command Reference

AppleTalk and Novell IPX Overview
Configuring AppleTalk
Configuring Novell IPX

  • Cisco IOS Apollo Domain, Banyan VINES, DECnet, ISO CLNS, and XNS Configuration Guide

  • Cisco IOS Apollo Domain, Banyan VINES, DECnet, ISO CLNS, and XNS Command Reference

Apollo Domain, Banyan VINES, DECnet, ISO CLNS, and XNS Overview
Configuring Apollo Domain
Configuring Banyan VINES
Configuring DECnet
Configuring ISO CLNS
Configuring XNS

  • Cisco IOS Multiservice Applications Configuration Guide

  • Cisco IOS Multiservice Applications Command Reference

Multiservice Applications Overview
Voice
Video
Broadband

  • Cisco IOS Quality of Service Solutions Configuration Guide

  • Cisco IOS Quality of Service Solutions Command Reference

Quality of Service Overview
Classification
Congestion Management
Congestion Avoidance
Policing and Shaping
Signaling
Link Efficiency Mechanisms
Quality of Service Solutions

  • Cisco IOS Security Configuration Guide

  • Cisco IOS Security Command Reference

Security Overview
Authentication, Authorization, and Accounting (AAA)
Security Server Protocols
Traffic Filtering and Firewalls
IP Security and Encryption
Other Security Features

  • Cisco IOS Switching Services Configuration Guide

  • Cisco IOS Switching Services Command Reference

Cisco IOS Switching Services Overview
Cisco IOS Switching Paths
Cisco Express Forwarding
NetFlow Switching
MPLS Switching
Multilayer Switching
Multicast Distributed Switching
Virtual LANs
LAN Emulation

  • Cisco IOS Wide-Area Networking Configuration Guide

  • Cisco IOS Wide-Area Networking Command Reference

Wide-Area Networking Overview
Configuring ATM
Configuring Frame Relay
Configuring Frame Relay-ATM Interworking
Configuring SMDS
Configuring X.25 and LAPB

  • Cisco IOS Configuration Guide Master Index

  • Cisco IOS Command Reference Master Index

  • New Features in 12.1-Based Limited Lifetime Releases

  • New Features in Release 12.1 T

  • Release Notes (Release note and caveat documentation for 12.1-based releases and various platforms)

  • Cisco IOS Debug Command Reference

  • Cisco IOS Dial Services Quick Configuration Guide

 

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.

Obtaining Documentation

World Wide Web

You can access the most current Cisco documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com.

Documentation CD-ROM

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.

Ordering Documentation

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).

Obtaining Technical Assistance

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 Connection Online

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.

Technical Assistance Center

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:

Language

E-mail Address

 English


 tac@cisco.com


 Hanzi (Chinese)


 chinese-tac@cisco.com


 Kanji (Japanese)


 japan-tac@cisco.com


 Hangul (Korean)


 korea-tac@cisco.com


 Spanish


 tac@cisco.com


 Thai


 thai-tac@cisco.com

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.

Software Configuration Tips on the Cisco Technical Assistance Center Home Page

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:

Documentation Feedback

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.





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Posted: Fri Aug 4 16:25:45 PDT 2000
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