Table of Contents

Contents
System Requirements

Memory Requirements
Hardware Supported

Processor Cards
MRP Card Upgrades
Wide Area Network Interface Cards, Voice Interface Cards, and Voice WAN Interface Cards
Key Hardware Features

Determining Your Software Release
Upgrading to a New Software Release
Feature Set Tables

New and Changed Information

New Hardware and Software Features in Release 12.1(5)T2

Cisco ICS 7750

New Software Features in Release 12.1(5)T2

Important Notes

Entering IOS Commands
Networks with Cisco 2600 and Cisco 3600 Series Routers
Software Images on MRP Cards

Caveats

Resolved Caveats
Open Caveats

Related Documentation

Release-Specific Documents
Cisco ICS 7750 Documents

Documentation Set

Feature Modules
Cisco IOS Software Documentation Set

Documentation Modules
Release 12.1 Documentation Set

Obtaining Documentation

World Wide Web
Documentation CD-ROM
Ordering Documentation
Documentation Feedback

Obtaining Technical Assistance

Cisco.com
Technical Assistance Center

Contacting TAC by Using the Cisco TAC Website
Contacting TAC by Telephone

Release Notes for the Cisco ICS 7750  for Cisco IOS Release 12.1(5)T2

April 20, 2001

These release notes describe features and functionality of Cisco IOS Release 12.1(5)T2 that runs on the multiservice route processor (MRP) card in the Cisco Integrated Communications System (ICS) 7750.

IOS software for the MRP card is bundled with other system software for the Cisco ICS 7750, as follows:

• Current release (system software release 1.0.5, 4/23/2001): Cisco IOS Release 12.1(5)T2

• Previous releases:

  • System software release 1.0.4, 12/6/2000, and system software release 1.0.3, 11/16/2000: Cisco IOS Release 12.1(3a)XI2

  • System software release 1.0.2, 10/6/2000: Cisco IOS Release 12.1(3a)XI1

Caution   Software upgrades for the Cisco ICS 7750 are distributed in packaged system software bundles; each Cisco ICS 7750 system software bundle is certified with a specific 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   Release 12.1 located on CCO and the Documentation CD-ROM.

For a list of the software caveats that apply to Release 12.1(5)T2 on the Cisco ICS 7750, refer to the section "Caveats" and to the online Caveats for Cisco IOS Release 12.1 T   document. The caveats document is updated for every 12.1 T maintenance release and is located on Cisco Connection Online (CCO) and the Documentation CD-ROM.

Caution   Although the Cisco ICS 7750 accepts command line interface (CLI) input, it is intended to be configured using the Cisco ICS System Manager software.

Contents

These release notes discuss the following topics:

• System Requirements

• New and Changed Information

• Important Notes

• Caveats

• Related Documentation

• Obtaining Documentation

• Obtaining Technical Assistance

System Requirements

This section describes the system requirements for Release 12.1(5)T2 on the Cisco ICS 7750. It includes the following sections:

• Memory Requirements

• Hardware Supported

• Determining Your Software Release

• Upgrading to a New Software Release

• Feature Set Tables

Memory Requirements

Table 1 describes the memory requirements for the Cisco IOS feature sets supported by Cisco IOS Release 12.1(5)T2 on each MRP card inside a Cisco ICS 7750 chassis.

Hardware Supported

Cisco IOS Release 12.1(5)T2 supports MRP cards in a Cisco ICS 7750. For detailed descriptions of new hardware features, see New and Changed Information.

Processor Cards

Table 2 lists the processor cards in the Cisco ICS 7750.

Table 3 lists the number of processor cards supported by a Cisco ICS 7750.

MRP Card Upgrades

You can upgrade MRP cards as follows:

• Memory. MRP cards ship with 64 MB of dynamic RAM (DRAM). You can upgrade MRP 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 and VWICs installed in the MRP card 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 MRP card PVDM slots to give MRPs more processing power.

Note   See Installing Memory, PVDM, and VPN Modules in SPE Cards and MRP Cards in the Cisco ICS 7750 for instructions on how to upgrade MRP cards.

Table 4 provides information about the modules that you can install in the MRP

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 cards. Refer to the Cisco ICS 7750 Software Configuration Guide for configuration instructions.

Key Hardware Features

The Cisco ICS 7750 provides the following key hardware features:

• MRP card dynamic RAM: Default is 64 MB and is expandable to 96 MB, which must be obtained from Cisco Systems.

• The SPE 200 card contains an Intel Pentium II 266 MHz processor; the SPE 310 cards contains an Intel Pentium III 700 MHz processor.

• Two SPE cards can be installed in a Cisco ICS 7750 for failover operation.

• MRPs, power supplies, and the fan tray can be hot-swapped.

• The fixed slot SSP card provides an internal 10/100 MB autosensing data switch backplane to communicate with the other cards in the chassis.

• The SAP card serial (COM) ports are used for Simplified Messaging Desktop Interface (SMDI) connections and external modem support.

• Interchangeable, universal SPE and MRP slots.

• Optional redundant power supplies and uninterruptible power supply (UPS).

• The Cisco ICS 7750 can be mounted in a 19-inch rack mount or as a standalone system.

Determining Your Software Release

Complete the following steps to determine the Cisco IOS software version running on the Cisco ICS 7750 system cards:

Step 2   In the Location: or Address: field, enter the following URL, replacing IP address with the IP address of the primary SPE:

Step 3   Log in as an administrator (user ID administrator), and enter your password (the default is changeme).

Step 4   Click Login.

Step 5   Click the Configure tab on the System Manager home page.

Step 6   Click MRP Manager.

Step 7   Click the drop-down arrow to view a list of choices for the Current MRP field, and choose an MRP.

The page refreshes, displaying the selected MRP.

Step 8   In the left pane of the window, under Management, click Issue Command.

Step 9   Click the drop-down arrow to view a list of choices for the Select or enter an IOS show command field, and choose show version.

Step 10   Click Execute to display the results of the command.

The following is sample output after entering the command show version on the MRP card:

Additional output lines from the command show version include information such as the processor revision numbers, amount of available memory, hardware IDs, and partition information.

Upgrading to a New Software Release

This section directs you to the documents that explain how to upgrade the software that runs on the Cisco ICS 7750.

Software upgrades for the Cisco ICS 7750 are distributed on CCO. Contact your sales representative for ordering instructions. For additional information about software image distribution, instructions for copying the software image from a PC to the Cisco ICS 7750, and installing the software, see the section "Upgrading to System Software Release 1.0.5 or 1.0.6" in the Release Notes for the Cisco ICS 7750 for System Software Release 1.0.x. 

This information is available on CCO and the Documentation CD-ROM:

• To reach the Cisco ICS 7750 Release Notes from CCO, click on this path (under the heading Service & Support):

Technical Documents: Documentation Home Page: Voice Products: Cisco Integrated Communications System 7750: Cisco ICS 7750 Release Notes: Release Notes for the Cisco ICS 7750 for System Software Release 1.0.x


• To reach the Cisco ICS 7750 Release Notes on the Documentation CD-ROM, click on this path:

Cisco Product Documentation: Voice Products: Cisco Integrated Communications System 7750: Cisco ICS 7750 Release Notes: Release Notes for the Cisco ICS 7750 for System Software Release 1.0.x

Note   There are two types of release notes for the Cisco ICS 7750: platform release notes and Cisco IOS platform-specific release notes (this document). Respectively, the titles of these documents are: · Release Notes for the Cisco ICS 7750 for System Software Release 1.0.x · Release Notes for the Cisco ICS 7750 for Cisco IOS Release 12.1(5)T2

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 12.1(5)T2 supports the same feature sets as Releases 12.1 and 12.1 T, but Release 12.1(5)T2 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 12.1(5)T2. 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.

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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.

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New and Changed Information

The following sections list the new hardware and software features supported by the Cisco ICS 7750 series for Cisco IOS software releases Release 12.1(5)T2.

New Hardware and Software Features in Release 12.1(5)T2

The following sections list the new hardware and software features supported by the Cisco ICS 7750 for Release 12.1(5)T2.

Cisco ICS 7750

The Cisco Integrated Communications System (ICS) 7750 is an IP telephony system that provides managed Web-based communications applications for transforming branch-office and mid-sized business environments into Internet e-businesses. The system is built on the open and scalable Cisco AVVID (Architecture for Voice, Video and Integrated Data).

The Cisco ICS 7750 integrates the functionality of the following voice and data network components:

The MRP supports both digital and analog voice-trunk gateways and WAN interfaces. The MRP enables businesses to use virtual private network (VPN), firewall, IP Security (IPSec), and QoS for voice and data transmission. The Cisco ICS 7750 system uses the MRP to link to the Public Switched Telephone Network (PSTN) and existing private branch exchanges (PBXs), as well as other common analog devices, such as fax machines and teleconferencing stations. Each MRP card has two slots that accept existing Cisco Voice interface cards (VICs) and WAN interface cards (WICs). Refer to Table 5 for a complete list.

The SPE is a single-board computer that can run Cisco CallManager for intelligent call processing.

A Cisco ICS 7750 network includes peripheral hardware components, such as the following:

• Ethernet switches

• Digital Cisco IP Phones

• Analog telephony devices, such as telephones and fax machines

New Software Features in Release 12.1(5)T2

For information regarding the features supported in Cisco IOS Release 12.1, refer to the Cross-Platform Release Notes and New Feature Documentation links at the following location on Cisco.com:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/index.htm

This URL is subject to change without notice. If it changes, point your web browser to Cisco.com, and click on the following path:

Service & Support: Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1

Important Notes

The following sections contain important notes about Cisco IOS-related issues for that can apply to the Cisco ICS 7750. (Also, see the "Caveats" section.)

Entering IOS Commands

This section describes the Cisco IOS commands that should be run only in the System Manager.

Caution   Cisco strongly recommends that you use System Manager for configuration of the Cisco ICS 7750 and its cards, whenever possible. Although some tasks require use of the Cisco IOS CLI, use of the CLI for some tasks can cause unrecoverable problems.

You should not use the CLI for the following tasks:

• Changing the login and password for Telnet access to the system.

• Changing the enable or secret password for access to the system.

• Changing the syslog logging host.

• Managing Simple Network Management Protocol (SNMP) community strings.

• Managing the SNMP server.

• Changing the server destination for SNMP traps.

• Shutting down an Ethernet interface.

• Changing an Ethernet or virtual LAN (VLAN) interface.

• Disabling Cisco Discovery Protocol (CDP), including on an Ethernet or VLAN interface.

• Creating an access control list or setting up a firewall.

• Upgrading Cisco IOS software images.

• Assigning or changing the IP addresses of system cards.

• Assigning or changing the host name

• Configuring the Domain Name System (DNS) on SPE cards.

• Disabling Network Time Protocol (NTP).

Note   For System Manager usage instructions, refer to the System Manager online help.

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 12.1(5)T2 or later.

Software Images on MRP Cards

All of the MRP cards in a Cisco ICS 7750 must run the same Cisco IOS image.

Caveats

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.

This section is organized as follows:

• Resolved Caveats

• Open Caveats

All caveats in Release 12.1(5)T are also in Release 12.1(5)T2. For information on caveats in Cisco IOS Release 12.1(5)T, refer to the Caveats for Cisco  IOS Release 12.1T document. For information on caveats in Cisco IOS Release 12.1, refer to the Caveats for Cisco IOS   Release 12.1 document. These publications list severity 1 and 2 caveats, and are located on Cisco.com and the Documentation CD-ROM.

Note   If you have an account with Cisco.com, you can use Bug Navigator II to find caveats of any severity for any release. You can reach Bug Navigator II on Cisco.com at Software Center: Cisco IOS Software: BUG TOOLKIT: Cisco Bug Navigator II, or at http://www.cisco.com/support/bugtools/bugtool.shtml.

Resolved Caveats

This section describes resolved caveats in Release 12.1(5)T2:

• Users may experience jitter when sending fax calls through an MRP card. In some cases, the jitter can cause the fax call to fail. (CSCds13020)

• The MRP card interfaces use process switching, even if fast switching has been configured on an interface. (CSCds17850)

Open Caveats

This section describes open caveats in Release 12.1(5)T2.

• 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. (CSCdr31192)

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).

• If you run multiple voice calls over a single DSP on an MRP card that is configured for echo cancellation coverage of 32 milliseconds on its voice ports, some voice quality degradation might be noticeable. (CSCdr66308)

Workaround—Limit the echo-coverage setting to 16 milliseconds in the voice-port configuration. For example, enter the command echo {coverage} 16ms voice-port.

• When placing a call through an MRP card to an IVR system, greeting messages played by the IVR might be clipped. (CSCds04904)

There is no workaround.

• The slot 1 analog voice interface card (VIC) ports (including FXS, FXO and E&M) of a Cisco ICS7750 Multiservice Route Processor (MRP) becomes unusable after you use the show diag EXEC command. This situation occurs when the VIC uses the PVDM in a PVDM slot 1 (the second PVDM slot). (CSCds37541)

Workaround—Use the PVDM in slot 0 for a 2-port analog VIC. For example, if two 2-port FXO cards are on the MRP, plug in a PVDM-8 or a higher PVDM (PVDM with 2 or more DSPs) into
slot 0. There are no known problems caused by using the show diag EXEC command for this configuration.

• By default, fax relay is supported if a fax machine is directly connected to the MRP using an FXS port. However, fax relay is not supported if the fax call is routed through a T1 line. (CSCdu06186)

Workaround—Disable fax relay so that the fax call makes use of the established voice path. Do this by adding the following configuration to the routers on both sides of the VoIP call leg:

router(config)# dial-peer voice tag voip router(config-dial-peer)# fax rate disable router(config-dial-peer)# no vad

where tag is the dial peer tag you assign.

• If the Cisco ICS 7750 MRP card is loaded with Cisco IOS release 12.1(5)T2 or 12.1(5)T7, the IP network might be variably and incorrectly masked after the MRP boots. (CSCdu06266)

If this is the case, entering the show ip route EXEC command generates output similar to the following:

10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 10.0.0.0/8 is directly connected, FastEthernet0/0 C 10.34.207.0/25 is directly connected, FastEthernet0/0 S* 0.0.0.0/0 [1/0] via 10.34.207.1

In the show ip route command output shown above, being in the subnet 10.0.0.0/8 prevents the MRP from pinging Cisco IP Phones with addresses such as 10.34.207.140 (which are in a different network).

Workaround—Enter the clear ip route EXEC command.

After you enter the clear ip route EXEC command, if you enter the show ip route EXEC command again, you should see output similar to the following:

10.0.0.0/25 is subnetted, 1 subnets C 10.34.207.0 is directly connected, FastEthernet0/0 S* 0.0.0.0/0 [1/0] via 10.34.207.1

Related Documentation

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:

• Release-Specific Documents

• Cisco ICS 7750 Documents

• Feature Modules

• Cisco IOS Software Documentation Set

Release-Specific Documents

The following documents are specific to Release 12.1. They are located on Cisco.com and the Documentation CD-ROM:

• Release Notes for Cisco IOS Release 12.1  

  • To reach the Cross-Platform Release Notes for Cisco IOS Release 12.1 from Cisco.com, click on this path (under the heading Service & Support):

  Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Release Notes: Cross-Platform Release Notes
  

  • To reach the Cross-Platform Release Notes for Cisco IOS Release 12.1 on the Documentation CD-ROM, click on this path:

  Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Release Notes: Cross-Platform Release Notes
  

• Product bulletins, field notices, and other release-specific documents

To reach these documents from Cisco.com, click on this path (under the heading Service & Support):

Technical Documents: Product Bulletins

• Caveats for Cisco IOS Release 12.1 and 12.1 T 

The Caveats for Cisco IOS Release 12.1 and Caveats for Cisco IOS Release 12.1 T  documents contain caveats applicable to all platforms for all maintenance releases of Release 12.1.

• To reach the caveats document from Cisco.com, click on this path (under the heading Service & Support):

Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Caveats

• To reach the caveats document on the Documentation CD-ROM, click on this path:

Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: Caveats

Note   If you have an account with Cisco.com, you can use Bug Navigator II to find caveats of any severity for any release. You can reach Bug Navigator II on Cisco.com at Software Center: Cisco IOS Software: BUG TOOLKIT: Cisco Bug Navigator II, or at http://www.cisco.com/support/bugtools/bugtool.shtml.

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: Documentation Home Page: Voice Products: Cisco Integrated Communications System 7750

On the Documentation CD-ROM (customer order number DOC-CONDOCCD=) at:

Cisco Product Documentation: Voice Products: Cisco Integrated Communications System 7750

The following documents are available:

• Cisco ICS 7750 Site and Network Design Guide

• Cisco ICS 7750 Getting Started Guide

• Cisco ICS 7750 Hardware Installation Guide

• Cisco ICS 7700 System Manager User Guide

• Cisco ICS 7750 Administration and Troubleshooting Guide

• Cisco ICS 7750 Software Configuration Guide

• Cisco ICS 7750 Command Reference

• Configuration Notes:

  • Using Cisco CallManager 3.0 on the Cisco ICS 7750

  • Installing Memory, PVDM, and VPN Modules in SPE Cards and MRP Cards in the
    Cisco ICS 7750

• Software Feature Module:

  • Cisco ICS 7750 Multiservice Route Processor Model 200 Configuration

• Release Notes:

  • Release Notes for the Cisco ICS 7750 for System Software Release 1.0.x

  • Release Notes for the Cisco ICS 7750 for Cisco IOS Release 12.1(5)T2 (this document)

• Regulatory Compliance and Safety Information for the Cisco ICS 7750

Documentation Set

Printed versions of most of the platform-specific documents can be ordered as a boxed set (customer order number DOCS-7750=).

Feature Modules

Feature modules describe new features supported by Release 12.1 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 Cisco ICS 7750-related Release 12.1 feature module:

• From Cisco.com, click on this path (under the heading Service & Support):

Technical Documents: Documentation Home Page: Cisco IOS Software Configuration: Cisco IOS Release 12.1: New Feature Documentation: New Features in 12.1-Based Limited Lifetime Releases

• From the Documentation CD-ROM, click on this path:

Cisco Product Documentation: Cisco IOS Software Configuration: Cisco IOS Release 12.1: New Feature Documentation: New Features in 12.1-Based Limited Lifetime Releases

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.

Documentation Modules

Each module in the Cisco IOS documentation set consists of two types of 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. The Cisco IOS software documentation set is available on Cisco.com and on the Documentation CD-ROM.

On Cisco.com 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

Release 12.1 Documentation Set

Table 8 describes the contents of the Cisco IOS Release 12.1 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 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

Note   Some aspects of the complete Cisco IOS Release 12.1 software documentation set might not apply to the Cisco ICS 7750.

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Note   Cisco Management Information Base (MIB) User Quick Reference is no longer published. If you have an account with Cisco.com, you can find latest list of MIBs supported by Cisco. To reach the Cisco Network Management Toolkit, press Login at Cisco.com and go to Software Center: Network Mgmt Products: Cisco Network Management Toolkit.

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Obtaining Documentation

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 sites:

• http://www.cisco.com

• http://www-china.cisco.com

• 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 and may be more current than printed documentation. The CD-ROM package is available as a single unit or as an annual subscription.

Ordering Documentation

Cisco documentation is available in the following ways:

• Registered Cisco Direct Customers can order Cisco Product documentation from the Networking Products MarketPlace:

http://www.cisco.com/cgi-bin/order/order_root.pl

• Registered Cisco.com users can order the Documentation CD-ROM through the online Subscription Store:

http://www.cisco.com/go/subscription

• Nonregistered Cisco.com users can order documentation through a local account representative by calling Cisco corporate headquarters (California, USA) at 408 526-7208 or, in North America, by calling 800 553-NETS(6387).

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 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. For Cisco.com registered users, additional troubleshooting tools are available from the TAC website.

Cisco.com

Cisco.com 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.

Cisco.com provides a broad range of features and services to help customers and partners streamline business processes and improve productivity. Through Cisco.com, you can find information about Cisco and our networking solutions, services, and programs. In addition, you can resolve technical issues with online technical support, 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 Cisco.com to obtain additional personalized information and services. Registered users can order products, check on the status of an order, access technical support, and view benefits specific to their relationships with Cisco.

To access Cisco.com, go to the following website:

http://www.cisco.com

Technical Assistance Center

The Cisco TAC website is available to all customers who need technical assistance with a Cisco product or technology that is under warranty or covered by a maintenance contract.

Contacting TAC by Using the Cisco TAC Website

If you have a priority level 3 (P3) or priority level 4 (P4) problem, contact TAC by going to the TAC website:

http://www.cisco.com/tac

P3 and P4 level problems are defined as follows:

• P3—Your network performance is degraded. Network functionality is noticeably impaired, but most business operations continue.

• P4—You need information or assistance on Cisco product capabilities, product installation, or basic product configuration.

In each of the above cases, use the Cisco TAC website to quickly find answers to your questions.

To register for Cisco.com, go to the following website:

http://www.cisco.com/register/

If you cannot resolve your technical issue by using the TAC online resources, Cisco.com registered users can open a case online by using the TAC Case Open tool at the following website:

http://www.cisco.com/tac/caseopen

Contacting TAC by Telephone

If you have a priority level 1(P1) or priority level 2 (P2) problem, contact TAC by telephone and immediately open a case. To obtain a directory of toll-free numbers for your country, go to the following website:

http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml

P1 and P2 level problems are defined as follows:

• P1—Your production network is down, causing a critical impact to business operations if service is not restored quickly. No workaround is available.

• P2—Your production network is severely degraded, affecting significant aspects of your business operations. No workaround is available.

This document is to be used with the documents listed in the "Related Documentation" section.

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Release Notes for the Cisco ICS 7750 for Cisco IOS Release 12.1(5)T2
Copyright © 2001, Cisco Systems, Inc.
All rights reserved.

Posted: Sun Apr 22 01:21:32 PDT 2001
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