Table Of Contents
Release Notes for Cisco IOS Release 12.2(4)XL5 on the Cisco ICS 7750
June 4, 2002
These release notes describe features and functionality of Cisco IOS Release 12.2(4)XL5 that are supported on analog station interface (ASI) cards and multiservice route processor (MRP) cards in the Cisco Integrated Communications System (ICS) 7750, beginning with system software release 2.2.0.
Cisco IOS software for ASI and MRP cards is provided with other system software for the Cisco ICS 7750, as follows:
•Current release: System software release 2.2.0
•Previous release: System software release 2.1.0, 12/3/2001: Cisco IOS Release 12.2(4)XL1
Caution Software upgrades for the Cisco ICS 7750 for system software release 2.2.0 are delivered in packaged system software bundles that are distributed on Cisco.com and on CD-ROM. Each Cisco ICS 7750 system software bundle is certified with a specific Cisco IOS release. Appropriate consideration must be given to the other software in the bundle when installing Cisco IOS software in the Cisco ICS 7750. Contact your sales representative for ordering instructions.
These release notes are updated as needed to describe new memory requirements, new features, new hardware support, software platform deferrals, microcode changes, related document changes, and any other important changes. Use these release notes with the Cross-Platform Release Notes for Cisco IOS 12.2T located on CCO and the Documentation CD-ROM.
These release notes discuss the following topics:
This section describes the system requirements for Release 12.2(4)XL5 on the Cisco ICS 7750. It includes the following sections:
Table 1 describes the memory requirements for the Cisco IOS feature sets supported by Cisco IOS Release 12.2(4)XL5 on ASI and MRP cards inside a Cisco ICS 7750 chassis.
Table 1 Available Software Images and Memory Requirements for ASI and MRP Cards
Platform Image Name Image Software Bundles 1 Required Flash Memory 2 Required DRAM Memory 3 Runs From
Cisco ICS 7750
IP/FW/Voice Plus IPSec 56
IP/FW/Voice Plus IPSec 3DES
IP/IPX/AT/IBM/ Voice, Plus
IP/IPX/AT/IBM/FW/ Voice, Plus IPSec 56
IP/IPX/AT/IBM/FW/ Voice, Plus IPSec 3DES
1 In addition to the Cisco IOS software listed above, each software bundle contains the following software: Cisco IOS software for the system switch processor (SSP) card, ICS System Manager, ICS Core Software, and system alarm processor (SAP) software.
2 Flash memory is not used for the Cisco IOS image on a Cisco ICS 7750. A Cisco IOS compressed image resides on the system processing engine (SPE) card and is downloaded to the RAM of each ASI or MRP card before image decompression.
3 You can upgrade ASI or MRP card memory to 80 MB or 96 MB by installing a dual in-line memory module (DIMM) in the card DIMM slot. For memory upgrade instructions, refer to Installing Memory, PVDM, and VPN Modules in ASI Cards, MRP Cards, and SPE Cards in the Cisco ICS 7750.
Cisco IOS Release 12.2(4)XL5 supports ASI and MRP cards in a Cisco ICS 7750. For detailed descriptions of new hardware features, see New and Changed Information.
Table 2 lists the processor cards in the Cisco ICS 7750.
Table 2 Cisco ICS 7750 Processor Cards
Card Card Description Port Description
System processing engine (SPE)
A single-board computer that runs system software applications such as ICS System Manager and Cisco CallManager.
•SPE 2001 : No front-panel ports.
•SPE 310: Front-panel ports for video, keyboard, and universal serial bus (USB).
Multiservice route processor (MRP)
A voice-and-data-capable router that can carry voice traffic over an IP network and can link remote Ethernet LANs to central offices over WAN links. The multiservice route processor has two slots that support combinations of WAN interface cards (WICs), voice WAN interface cards (VWICs), and Voice interface cards (VICs). It also has two slots to support Packet Voice Data modules (PVDMs). Five versions of PVDMs are available.
Supports the data and voice interface port types listed in Table 5.
Analog station interface (ASI 81)
A voice-and-data-capable router that can carry voice traffic over an IP network and can link small-to- medium-size remote Ethernet LANs to central offices over WAN links (depending on the type of card installed in its WIC/VIC/VWIC slot) and can support connections to analog telephones, fax machines, and polycoms. It also has two PVDM slots.
•Eight FXS ports
•One slot that supports the data and voice interface port types listed in Table 5
An analog gateway that supports connections to telephones, fax machines, and polycoms. It also has two PVDM slots.
Sixteen FXS ports
System alarm processor (SAP)
A module that monitors the status of the chassis, power supply modules, and fans, and feeds real-time data to the system processing engines. The SAP card delivers its data to the SPE running System Manager.
•Two COM ports
•One console port
System switch processor (SSP)
An Ethernet switch that passes data between all system cards and to any other Ethernet switches connected to the system.
Two Ethernet 10/100 ports
1 System software release 2.2.0 is supported only on SPE 310s.
Table 3 lists the number of processor cards supported by a Cisco ICS 7750.
Table 3 Number of Cards Supported in a Cisco ICS 7750 Chassis
Card Minimum Required Maximum Allowed
ASI 81 or ASI 160
200W power supply module
1 System software release 2.2.0 is supported only on SPE 310s.
MRP and ASI Card Upgrades
You can upgrade MRP and ASI cards as follows:
•Memory. MRP and ASI cards ship with 64 MB of dynamic RAM (DRAM). You can upgrade MRP and ASI card memory to 80 MB or 96 MB by installing a dual in-line memory module (DIMM) in the card DIMM slot.
•Voice and data processing power. VICs, VWICs, and FXS modules installed in MRP or ASI cards might require additional digital signal processors (DSPs) for processing heavier volumes of voice traffic. You can install Packet Voice/Data Modules (PVDMs) in one or both of the card PVDM slots to give MRP and ASI cards more processing power.
Table 4 provides information about the modules that you can install in ASI and MRP cards
Table 4 Cisco ASI and MRP Card Replacement DIMMs and PVDMs
Description Cisco Part Number
16-MB SDRAM DIMM
32-MB SDRAM DIMM
4-channel packet voice/fax data DSP module
8-channel packet voice/fax data DSP module
12-channel packet voice/fax data DSP module
16-channel packet voice/fax data DSP module
20-channel packet voice/fax data DSP module
1 The PVDM-256K-16 is the recommended DSP module for ASI cards. Refer to the "PVDM Requirements" appendix in the Cisco ICS 7750 Hardware Installation Guide.
Wide Area Network Interface Cards, Voice Interface Cards, and Voice WAN Interface Cards
Table 5 lists the WICs, VICs, and VWICs that you can order in Cisco ICS 7750 MRP and ASI 81 cards. Refer to the Cisco ICS 7750 Software Configuration Guide and the ICS System Manager online help for configuration instructions.
Table 5 Supported WICs, VICs and VWICs
Card Description Abbreviated Name
1-port serial, asynchronous and synchronous (T1/E1)
2-port serial, asynchronous and synchronous (T1/E1)
2-port serial, low speed (up to 128 kbps), asynchronous and synchronous
1-port ISDN BRI with integrated NT1 (U interface)
1-port, four-wire 56-kbps CSU/DSU3
1-port, T1/fractional T1 CSU/DSU
2-port FXS4 voice/fax interface card
2-port FXO5 voice/fax interface card
2-port FXO voice/fax interface card with battery reversal detection and caller ID support (for the United States)
2-port FXO voice/fax interface card with battery reversal detection and caller ID support (for Europe)
2-port FXO voice/fax interface card with battery reversal detection (for Australia)
2-port E&M6 voice/fax interface card
2-port analog DID7 voice/fax interface card
4-port analog FXS/DID voice/fax interface card
2-port ISDN BRI voice/fax interface card (network and terminal side)
1-port T1/fractional T1 multiflex trunk with CSU/DSU
2-port T1/fractional T1 multiflex trunk with CSU/DSU
1-port E1/fractional E1 multiflex trunk with CSU/DSU
2-port E1/fractional E1 multiflex trunk with CSU/DSU
1 ISDN = Integrated Services Digital Network
2 BRI = Basic Rate Interface
3 CSU/DSU = channel services unit/data services unit
4 FXS = Foreign Exchange Station
5 FXO = Foreign Exchange Office
6 E&M = Ear and Mouth
7 DID = Direct Inward Dial
SPE Card Support
Release 2.2.0 is supported only on SPE 310s. The SPE 310 offers a keyboard port, a video port, and two universal serial bus (USB) ports supporting standard USB devices such as mice, keyboards, and CD-ROM drives.
The SPE 310 also features a 700-MHz Pentium III processor, a 20.4-GB hard disk drive, and 512 MB of onboard memory. You can upgrade SPE 310 memory to a maximum of 1536 MB by installing 256-MB or 512-MB dual in-line memory modules (DIMMs) in one or both of the SPE card DIMM slots.
For instructions on how to upgrade the memory on SPE 310 cards, refer to Installing Memory, PVDM, and VPN Modules in ASI Cards, MRP Cards, and SPE Cards in the Cisco ICS 7750.
Determining Your Software Release
Complete the following steps to determine the Cisco IOS software version running on Cisco ICS 7750 ASI, MRP, or SSP cards:
Step 1 On a PC, choose Start > Run.
Step 2 Enter the following command to open a Telnet session, where IP address is the IP address of the card that you wish to verify:telnet IP address
Step 3 Enter your login password.
Step 4 Enter the show version command:card> show version
The following is some of the output that is displayed after entering the command show version on an ASI or MRP card:router> show versionCisco Internetwork Operating System SoftwareIOS (tm) ICS7750 Software (ics7700-sv3y-mz), Version 12.2(1)XD, RELEASE SOFTWARE
Additional output lines from the show version command include information such as the processor revision numbers, amount of available memory, hardware IDs, and partition information.
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. Release 12.2(4)XL5 supports the same feature sets as Releases 12.2 and 12.2T, but Release 12.2(4)XL5 can include new features supported by the Cisco ICS 7750 platform. Table 6 lists the feature sets supported by the Cisco ICS 7750.
Table 7 lists the features and feature sets supported by the Cisco ICS 7750 in Cisco IOS Release 12.2(4)XL5. The table uses the following conventions:
•Yes—The feature is supported in the software image.
•No—The feature is not supported in the software image.
Note These feature set tables only contain a selected list of features. These tables are not cumulative—nor do they list all the features in each image. For additional information about new feature support, refer to the Release Notes for the Cisco ICS 7750 for System Software Release 2.x.x.
New and Changed Information
The following sections list the new hardware features supported by the Cisco ICS 7750 series for Cisco IOS software releases Release 12.2(4)XL5.
New Hardware Features in Release 12.2(4)XL5
Cisco IOS Release 12.2(4)XL5 on the Cisco ICS 7750 supports the four-port analog FXS/DID VIC, as described below.
Four-Port Foreign Exchange Station/Direct Inward-Dialing (VIC-4FXS/DID)
The Cisco ICS 7750 now supports the four-port, FXS/DID voice interface card (VIC-4FXS/DID). DID is a service offered by telephone companies that enables callers to dial directly to an extension on a Private Branch Exchange (PBX) or packet voice system (for example, Cisco CallManager and Cisco IOS routers or gateways) without the assistance of an operator or automated call attendant. This service uses DID trunks, which forward only the last three to five digits of a phone number to the PBX, router, or gateway. For example, if a company has the phone extensions 555-1000 to 555-1999, and a caller dials 555-1234, the local central office (CO) forwards 234 to the PBX or packet voice system. The PBX or packet voice system then rings extension 234. The entire process is transparent to the caller.
The VIC-4FXS/DID card services four analog FXS/DID trunks using analog voice or fax. The card provides dual-working modes on a per-port basis, DID and FXS, which are mutually exclusive.
Note You can use H.323 with the analog DID and Caller ID features only on the VIC-4FXS/DID. MGCP on the VIC-4FXS/DID is supported in FXS mode only—MGCP is not supported in DID mode.
New Software Features in Release 12.2(4)XL5
Cisco IOS Release 12.2(4)XL5 on the Cisco ICS 7750 supports Caller ID, as described below.
The Cisco ICS 7750 supports Caller ID functions on analog FXS, FXO-M1, and FXO-M2 voice interfaces, and on the FXS mode of the VIC-4FXS/DID.
Caller ID (sometimes called CLID for calling line identification) is an analog service offered by a Central Office (CO), which supplies calling party information to subscribers. Typically, the calling party number and the name appears on a station (also called extension) device such as a PC telephony software application screen or the display on a telephone. Type 1 Caller ID provides the calling party information while the call is ringing, and Type 2 Caller ID provides the additional convenience of calling number display while the recipient is on another call. In this release, only Type 1 Caller ID is supported.
The following sections contain important notes about Cisco IOS-related issues that can apply to the Cisco ICS 7750. (Also, see the "Caveats" section.)
Networks with Cisco 2600 and Cisco 3600 Series Routers
In a network environment that uses Cisco 2600 series routers, Cisco 3600 series routers, and Cisco ICS 7750s, to avoid intermittent call setup failures all platforms should run Cisco IOS Release 12.2(4)XL5 or later.
Software Images on MRP and ASI Cards
All of the MRP and ASI cards in a Cisco ICS 7750 must run the same Cisco IOS image.
Caveats describe unexpected behavior or defects in Cisco IOS software releases. Severity 1 caveats are the most serious caveats, severity 2 caveats are less serious, and severity 3 caveats are the least serious of these three severity levels.
All caveats in Release 12.2 T are also in Release 12.2(4)XL5. For information on caveats in Cisco IOS Release 12.2 T, refer to the Caveats for Cisco IOS Release 12.2 T document. For information on caveats in Cisco IOS Release 12.2, refer to the Caveats for Cisco IOS Release 12.2 document. These documents list severity 1 and 2 caveats, and are located on CCO and the Documentation CD-ROM.
Note If you have an account with Cisco.com, you can also use the Bug Toolkit to find select caveats of any severity. To reach the Bug Toolkit, log in toCisco.com and click Service & Support: Technical Support Help-Cisco TAC: Tool Index: Bug Toolkit. Another option is to go to http://www.cisco.com/cgi-bin/Support/Bugtool/launch_bugtool.pl.
Resolved Caveats - Releases 12.2(4)XL2 Through 12.2(4)XL5
This section describes unexpected behavior that is fixed in Releases 12.2(4)XL2 through 12.2(4)XL5.
An error can occur with management protocol processing. Please use the following URL for further information:
Resolved Caveats - Release 12.2(4)XL5
This section describes unexpected behavior that is fixed in Release 12.2(4)XL5.
If one slot of an MRP contains an analog VIC, and the other slot contains a T1/E1 VWIC, and if the T1/E1 controller has been shut down, entering a tdm clock t1 (or tdm clock e1) command might fail and generate an error message similar to
% E1 voice switch not available for this configuration.
If you attempt to place a call through a MFT-T1 or MFT-E1 port (on an MRP card) that is directly connected to another MRP MFT-T1/MFT-E1 and configured with the connection trunk command (which creates a VoIP call between two MRPs), the call will not go through or you will experience one-way voice.
Open Caveats - Release 12.2(4)XL5
This section describes open caveats in Release 12.2(4)XL5.
If you are using Release 12.2(4)XL5 on an MRP, if there are two or more instances of Cisco CallManager (which use MGCP for communication with MRPs) running on SPEs, and if that MRP is not registered with those instances of Cisco CallManager, then that MRP will start "leaking" memory, which will eventually cause the memory resources of that MRP to be completely depleted.
There is no workaround.
If you place a call that passes through an FXO port on the Cisco ICS 7750 and that call is routed through an FXS port on a Lucent PBX, you might hear a beep coming from the telephone that is connected to the Lucent PBX, or the line might be disconnected and an error tone might be heard.
There is no workaround.
Connections over T1 endpoints might experience unacceptable levels of background white noise, or "hiss," if Voice Activity Detection (VAD) is enabled on the MRP card. VAD, which is enabled by default, causes the Cisco IP Phone 7960 to generate a low level hiss to simulate the background circuit noise users experience on non-IP connections.
Workaround—Disabling VAD can solve this problem, however, if you disable VAD on a network that exhibits a significant amount of jitter (for example, greater than 100 milliseconds per second), latency becomes noticeable to the user in the form of delay and packet loss. Also, if the codec clocks are out of sync among the devices participating in the call, latency increases for the duration of the call. For example, if the codec clock at the transmitting end is 100 parts per million faster than the codec clock at the receiving end, latency increases to one-half second over the course of a one hour long connection (at 8 kHz).
When placing a call through an MRP card to an IVR system, greeting messages played by the IVR might be clipped.
There is no workaround.
The following sections describe the documentation available for the Cisco ICS 7750. Typically, these documents consist of hardware and software installation guides, Cisco IOS configuration and command references, system error messages, feature modules, and other documents.
Documentation is available as printed manuals or electronic documents, except for feature modules, which are available online on Cisco.com and the Documentation CD-ROM.
Use these release notes with the documents listed in the following sections:
The following documents are specific to Release 12.2 and apply to Release 12.2(4)XL5. They are located on Cisco.com and the Documentation CD-ROM:
–To reach the Release Notes for the Cisco 1CS 7750 for Cisco IOS Release 12.2(4)XL5 from Cisco.com, click this path (under the heading Service & Support):
Technical Documents: Cisco IOS Software: Release 12.2: Release Notes: Cisco Integrated Communications System 7750: Release Notes for the Cisco ICS 7750 for IOS Release 12.2(4)XL5
–To reach the Release Notes for the Cisco 1CS 7750 for Cisco IOS Release 12.2(4)XL5 on the Documentation CD-ROM, click this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.2: Release Notes: Cisco Integrated Communications System 7750: Release Notes for the Cisco ICS 7750 for IOS Release 12.2(4)XL5
–To reach the Cross-Platform Release Notes for Cisco IOS Release 12.2 T from Cisco.com, click this path (under the heading Service & Support):
Technical Documents: Cisco IOS Software: Release 12.2: Release Notes: Cisco IOS Release 12.2 T
–To reach the Cross-Platform Release Notes for Cisco IOS Release 12.2 on the Documentation CD-ROM, click this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.2: Release Notes: Cisco IOS Release 12.2 T
•Product bulletins, field notices, and other release-specific documents
To reach these documents from Cisco.com, click this path (under the heading Service & Support):
Technical Documents: Product Bulletins
•Caveats for Cisco IOS Release 12.2 and 12.2 T
–To reach the caveats document from Cisco.com, click this path (under the heading Service & Support):
Technical Documents: Cisco IOS Software: Release 12.2: Caveats
–To reach the caveats document on the Documentation CD-ROM, click this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.2: Caveats
Note If you have an account with Cisco.com, you can also use the Bug Toolkit to find select caveats of any severity. To reach the Bug Toolkit, log in toCisco.com and click Service & Support: Technical Assistance Center: Tool Index: Bug Toolkit. Another option is to go to http://www.cisco.com/cgi-bin/Support/Bugtool/launch_bugtool.pl.
Cisco ICS 7750 Documents
The documents described in this section are available on Cisco.com and on CD:
On Cisco.com, beginning under the Service & Support heading:
Technical Documents: Voice/Telephony: Cisco ICS 7750
On the Documentation CD-ROM (order number DOC-CONDOCCD=) at:
Cisco Product Documentation: Voice/Telephony: Cisco ICS 7750
Printed versions of many of the platform-specific documents can be ordered as a boxed set (order number DOCS-7750=).
Feature modules describe new features supported by Release 12.2 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.
To reach the Release 12.2 feature modules:
•From Cisco.com, click this path (under the heading Service & Support):
Technical Documents: Cisco IOS Software: Release 12.2: New Feature Documentation:
New Features in 12.2-Based Limited Lifetime Releases: New Features in 12.2X Releases
•From the Documentation CD-ROM, click this path:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.2: New Feature Documentation: New Features in 12.2-Based Limited Lifetime Releases: New Features in 12.2X Releases
Feature Navigator is a web-based tool that enables you to quickly determine which Cisco IOS software images support a particular set of features and which features are supported in a particular Cisco IOS image. Feature Navigator is available 24 hours a day, 7 days a week.
To access Feature Navigator, you must have an account on Cisco.com. If you have forgotten or lost your account information, e-mail the Contact Database Administration group at firstname.lastname@example.org. If you do not have an account on Cisco.com, go to http://www.cisco.com/register and follow the directions to set up an account.
Feature Navigator is updated when major Cisco IOS software releases and technology releases occur. You can access Feature Navigator at the following URL:
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 printed versions.
Each module in the Cisco IOS documentation set consists of one or more configuration guides and one or more corresponding command references. Chapters in a configuration guide describe protocols, configuration tasks, and 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. The Cisco IOS software documentation set is available on Cisco.com and on the Documentation CD-ROM.
On Cisco.com (under the heading Service & Support) at:
Technical Documents: Cisco IOS Software: Release 12.2: Configuration Guides and Command References
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.2: Configuration Guides and Command References
Release 12.2 Documentation Set
Table 8 describes the contents of the Cisco IOS Release 12.2 software documentation set, which is available in both electronic and printed form.
Note You can find the most current Cisco IOS documentation on Cisco.com and the Documentation CD-ROM. These electronic documents may contain updates and modifications made after the hard-copy documents were printed.
On Cisco.com (under the heading Service & Support) at:
Technical Documents: Cisco IOS Software: Release 12.2
On the Documentation CD-ROM at:
Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.2
Note Some aspects of the complete Cisco IOS Release 12.2 software documentation set might not apply to the Cisco ICS 7750.
The following sections provide sources for obtaining documentation from Cisco Systems.
World Wide Web
You can access the most current Cisco documentation on the World Wide Web at the following URL:
Translated documentation is available at the following URL:
Cisco documentation and additional literature are available in a Cisco Documentation CD-ROM package, which is shipped with your product. The Documentation CD-ROM is updated monthly and may be more current than printed documentation. The CD-ROM package is available as a single unit or through an annual subscription.
Cisco documentation is available in the following ways:
•Registered Cisco Direct Customers can order Cisco product documentation from the Networking Products MarketPlace:
•Registered Cisco.com users can order the Documentation CD-ROM through the online Subscription Store:
•Nonregistered Cisco.com users can order documentation through a local account representative by calling Cisco corporate headquarters (California, USA) at 408 526-7208 or, elsewhere in North America, by calling 800 553-NETS (6387).
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 email@example.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 your comments.
Obtaining Technical Assistance
Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can obtain documentation, troubleshooting tips, and sample configurations from online tools by using the Cisco Technical Assistance Center (TAC) Web Site. Cisco.com registered users have complete access to the technical support resources on the Cisco TAC Web Site.
Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information, networking solutions, services, programs, and resources at any time, from anywhere in the world.
Cisco.com is a highly integrated Internet application and a powerful, easy-to-use tool that provides a broad range of features and services to help you to
•Streamline business processes and improve productivity
•Resolve technical issues with online support
•Download and test software packages
•Order Cisco learning materials and merchandise
•Register for online skill assessment, training, and certification programs
You can self-register on Cisco.com to obtain customized information and service. To access Cisco.com, go to the following URL:
Technical Assistance Center
The Cisco TAC is available to all customers who need technical assistance with a Cisco product, technology, or solution. Two types of support are available through the Cisco TAC: the Cisco TAC Web Site and the Cisco TAC Escalation Center.
Inquiries to Cisco TAC are categorized according to the urgency of the issue:
•Priority level 4 (P4)—You need information or assistance concerning Cisco product capabilities, product installation, or basic product configuration.
•Priority level 3 (P3)—Your network performance is degraded. Network functionality is noticeably impaired, but most business operations continue.
•Priority level 2 (P2)—Your production network is severely degraded, affecting significant aspects of business operations. No workaround is available.
•Priority level 1 (P1)—Your production network is down, and a critical impact to business operations will occur if service is not restored quickly. No workaround is available.
Which Cisco TAC resource you choose is based on the priority of the problem and the conditions of service contracts, when applicable.
Cisco TAC Web Site
The Cisco TAC Web Site allows you to resolve P3 and P4 issues yourself, saving both cost and time. The site provides around-the-clock access to online tools, knowledge bases, and software. To access the Cisco TAC Web Site, go to the following URL:
All customers, partners, and resellers who have a valid Cisco services contract have complete access to the technical support resources on the Cisco TAC Web Site. The Cisco TAC Web Site requires a Cisco.com login ID and password. If you have a valid service contract but do not have a login ID or password, go to the following URL to register:
If you cannot resolve your technical issues by using the Cisco TAC Web Site, and you are a Cisco.com registered user, you can open a case online by using the TAC Case Open tool at the following URL:
If you have Internet access, it is recommended that you open P3 and P4 cases through the Cisco TAC Web Site.
Cisco TAC Escalation Center
The Cisco TAC Escalation Center addresses issues that are classified as priority level 1 or priority level 2; these classifications are assigned when severe network degradation significantly impacts business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer will automatically open a case.
To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to the following URL:
Before calling, please check with your network operations center to determine the level of Cisco support services to which your company is entitled; for example, SMARTnet, SMARTnet Onsite, or Network Supported Accounts (NSA). In addition, please have available your service agreement number and your product serial number.
This document is to be used in conjunction with the documents listed in the "Related Documentation" section.
Copyright © 2002, Cisco Systems, Inc.
All rights reserved.