Release Notes for Catalyst 6500 Series and Cisco 7600 Series Communication Media Module Software Release 12.2(13)ZC

Table Of Contents

Release Notes for Catalyst 6500 Series and
Cisco 7600 Series Communication Media Module Software Release 12.2(13)ZC

Contents

System Requirements

Hardware Supported

Software Compatibility

Cisco CallManager Support

Orderable Software Images

Feature Set

Usage Guidelines and Restrictions

Caveats

Open Caveats in Release 12.2(13)ZC

Resolved Caveats in Release 12.2(13)ZC

Resolved Caveats in Release 12.2(11)ZC

Manual Configuration in the Absence of CMM-Specific XML Files

Related Cisco CallManager Caveats—Release 3.2(2c) and/or Earlier

Related Documentation

Obtaining Documentation

Cisco.com

Documentation CD-ROM

Ordering Documentation

Documentation Feedback

Obtaining Technical Assistance

Cisco.com

Technical Assistance Center

Cisco TAC Website

Cisco TAC Escalation Center

Obtaining Additional Publications and Information

Release Notes for Catalyst 6500 Series and
Cisco 7600 Series Communication Media Module Software Release 12.2(13)ZC

---

Current Release: 12.2(13)ZC—July 17, 2003

This publication describes the features, modifications, and caveats for the Catalyst 6500 series and Cisco 7600 series Internet Router Communication Media Module (CMM) software release 12.2(13)ZC running Cisco IOS Release 12.1(13)E or later or Catalyst software release 7.3(1) or later.

---

Note For detailed installation and configuration procedures for the CMM, refer to the Catalyst 6500 Series and Cisco 7600 Series Internet Router Communication Media Module Installation and Configuration Note at the following URL:

http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/cfgnotes/78_14107.htm

---

---

Note Except where specifically differentiated, the term "Catalyst 6500 series switches" includes both Catalyst 6500 series and Catalyst 6000 series switches.

---

Contents

•System Requirements

–Hardware Supported

–Software Compatibility

–Cisco CallManager Support

•Orderable Software Images

•Feature Set

•Usage Guidelines and Restrictions

•Caveats

•Related Documentation

•Obtaining Documentation

•Obtaining Technical Assistance

•Obtaining Additional Publications and Information

System Requirements

This section describes the system requirements for the CMM software release.

Hardware Supported

The CMM requires either a Supervisor Engine 1 or a Supervisor Engine 2. The supervisor engine can have an MSFC/MSFC2, but the CMM does not require an MSFC/MSFC2 for configuration or operation.

Product Number	Product Description	Minimum Software Version	Recommended Software Version	IOS Release	Catalyst Release
WS-SVC-CMM	Communication Media Module	12.2(11)ZC	12.2(13)ZC	12.1(13)E or later	7.3(1) or later

Software Compatibility

Software release 12.2(13)ZC requires Cisco IOS Release 12.1(13)E or later releases or Catalyst software release 7.3(1) or later releases. The recommended Cisco IOS release is 12.1(19)E and the recommended Catalyst software release is 7.5(1).

Cisco CallManager Support

Software release 12.2(13)ZC supports Cisco CallManager release 3.2(2) and later releases.

Orderable Software Images

Table 1 lists the software versions and applicable ordering information for the CMM software.

Table 1 Orderable Software Images 

Software Version	Filename	Orderable Product Number 1
12.2(13)ZC image	wscmm-i6s-mz.122-13.zc	S6CMVG3-12213ZC

1 Installed on system; append with "=" for spare on floppy media.

Feature Set

Table 2 lists the supported features for the CMM interface modules.

Table 2 CMM Interface Module Supported Features

WS-SVC-CMM-6T1 Module	WS-SVC-CMM-6E1 Module
Line code—B8ZS1 , AMI2	Line code—HDB33 , AMI
Frame format—SF4 , ESF5 with CRC6 /no CRC	Frame format—with CRC4/no CRC4
SRST7 , 8	SRST8
MGCP gateway fallback8	MGCP gateway fallback8
FDL8, 9 with T1 CAS/PRI for extended super frame (only) signaling.
MGCP and H.3238: T1-PRI—Supports up to 18 ports10 T1-CAS—Supports up to 18 ports10 T1-CAS E&M11 Wink Start T1-CAS E&M Delay Dial T1-CAS E&M Immediate Start12 T1-CAS FXS Loop Start12 T1-CAS FXO Loop Start12 T1-CAS FXS Ground Start12 T1-CAS FXO Ground Start12 Fax Pass-through Cisco Fax Relay Modem Pass-through Music on Hold (unicast, multicast) DTMF Relay13 , 14 G711 codec (sampling size: 10, 20, and 30 ms) G729 codec (sampling size: 10, 20, 30, 40, 50, 60 ms) QSIG backhaul15 NSF8, 15, 16	MGCP and H.3238: E1-PRI—Supports up to 18 ports10 Fax Pass-through Cisco Fax Relay DTMF Relay Modem Pass-through Music on Hold (unicast, multicast) G711 codec (sampling size: 10, 20, and 30 ms) G729 codec (sampling size: 10, 20, 30, 40, 50, 60 ms) QSIG backhaul15 E1 R2 CAS signaling8, 12

1 B8ZS = binary 8-zero substitution. 2 AMI = alternate mark inversion. 3 HDB3 = high-density bipolar with three zeros. 4 SF = super framing. 5 ESF = extended super framing. 6 CRC = cyclic redundancy check. 7 SRST = Survival Remote Site Telephony. 8 Requires software release 12.2(13)ZC. 9 FDL = Facility Data Link. 10 Number of ports is based on running 12.2(13)ZC software, 20-ms packetization with VAD ON or 30-ms packetization with VAD OFF. With 20-ms packetization and VAD OFF, you are limited to 18 T1-PRI ports, 14 E1-PRI ports, and 16 T1-CAS ports. 11 E&M = ear and mouth. 12 Supported only with H.323. 13 DTMF = Dual Tone Multi-Frequency. 14 DTMF is supported; DTMF/MF is not supported. 15 Not supported with H.323. 16 NSF = Network-Specific Facilities (part of QSIG backhaul enhancement for MGCP).

Usage Guidelines and Restrictions

This section provides usage guidelines and restrictions for the CMM.

•The recommended VAD setting for the CMM is off.

•SNMP is currently not supported on the CMM.

Caveats

These sections describe the following release caveats:

•Open Caveats in Release 12.2(13)ZC

•Resolved Caveats in Release 12.2(13)ZC

•Resolved Caveats in Release 12.2(11)ZC

•Manual Configuration in the Absence of CMM-Specific XML Files

•Related Cisco CallManager Caveats—Release 3.2(2c) and/or Earlier

Open Caveats in Release 12.2(13)ZC

This section describes the known limitations that exist in CMM software release 12.2(13)ZC.

•Under extreme stress conditions, using the write memory or write erase commands can cause call failures.

Workaround: Do not use the write memory or write erase commands under extreme stress conditions. Schedule the use of these commands during off hours. (CSCeb46179)

•Fax relay and pass-through mixed environments result in a fax call failure and VTSP-TIMEOUT messages on the gateway configured for fax pass-through.

Workaround: Configure the same fax mode on both the originating and the terminating gateways. (CSCea38859)

•After a reload with the MGCP (XML) configuration download enabled, there might be a warning on the console displaying, "Warning: Primary line clock source is not operational." Actually, the clock source line primary is configured by MGCP (XML) configuration download before and after a reload. (CSCdy33340)

Resolved Caveats in Release 12.2(13)ZC

This section describes the resolved caveats in CMM software release 12.2(13)ZC.

•When the DSP is under heavy, extended stress testing conditions, you might see a VTSP-2-DSP_TIMEOUT. (CSCdz70097)

•Cisco routers and switches running Cisco IOS software and configured to process Internet Protocol version 4 (IPv4) packets are vulnerable to a Denial of Service (DoS) attack. A rare sequence of crafted IPv4 packets sent directly to the device may cause the input interface to stop processing traffic once the input queue is full. No authentication is required to process the inbound packet. Processing of IPv4 packets is enabled by default. Devices running only IP version 6 (IPv6) are not affected. A workaround is available.

Cisco has made software available, free of charge, to correct the problem.

This advisory is available at
http://www.cisco.com/warp/public/707/cisco-sa-20030717-blocked.shtml

(CSCdz71127, CSCea02355)

Resolved Caveats in Release 12.2(11)ZC

This section describes the resolved caveats in CMM software release 12.2(11)ZC.

•There might be a problem when fax pass-through is configured but only when a fax or modem is in close proximity to an IP or PSTN phone. Once a call is established through the gateway, one-way audio can be triggered if either the IP phone or the PSTN phone is in close proximity to an audible fax or modem. Fax or modem tones induced into the line through the handset or speakers can trigger a PCM_SWITCHOVER resulting in one-way audio from the PSTN side.

Workaround: Increase the distance between the phone and the fax/modem, or reduce the fax/modem volume. This problem is resolved in Release 12.2(11)ZC. (CSCdz14789)

•There is a problem with voice activity detection (VAD) or silence suppression when these features are enabled on G.729 calls only. A delay will occur on the 7935 Polycom phone with some of the T1 (CAS/PRI) or E1 (PRI) voice calls. The delay is heard in one direction only from the PSTN to the 7935 Polycom phone. The delay problem occurs with varying amounts of delay.
Workaround: Turn off VAD if you experience this delay. This problem is resolved in Release 12.2(11)ZC. (CSCdz19171)

•Voice calls fail on the CMM if the codec type configured is G711ULAW or G711ALAW with a 30-ms sampling rate. There is no problem when configured for 10-ms and 20-ms sampling rates. This problem is resolved in Release 12.2(2)YK1. (CSCdy23154)

•A periodic clicking sound might be heard when a call is put on hold. The workaround is to configure unicast Music on Hold instead of multicast Music on Hold. This problem is resolved in Release 12.2(2)YK1. (CSCdy49606)

•The temperature monitoring process has been optimized to reduce CPU utilization. This problem is resolved in Release 12.2(2)YK1. (CSCdy41750)

•This problem might affect G.729 calls. An intermittent delay might be heard in the PSTN-to-IP phone direction for calls originating from the PSTN to an IP phone. If you experience this problem, the workaround is to turn VAD off. This problem is resolved in Release 12.2(2)YK1. (CSCdy54786)

•The CMM temperature sensors on the baseboard should work as follows: The Sensor 1 field refers to the outtake temperature sensor, and the Sensor 2 field refers to the intake temperature sensor. However, the software "swaps" the temperature readings of the two sensors. This problem is resolved in Release 12.2(2)YK1. (CSCdy84013)

•With auto configuration, you might not be able to download the complete XML configuration file. As a result, the configuration is not done.

Workaround: Manually create the configurations on the gateway. This problem is resolved in Release 12.2(2)YK1. (CSCdy51953)

•When reconfiguring the ISDN switch type from primary-ni to primary-5ess or updating any other value with that endpoint in CCM using the gateway auto configure feature, the T1 controller gets shut down when the reconfiguration is done. As a result of the reconfiguration, the Layer 1 is deactivated.

Workaround: 1. Manually change the switch type rather than using the auto config feature. 2. Or manually do a no shut after the auto reconfiguration is done. This problem is resolved in Release 12.2(2)YK1. (CSCdz17090)

Manual Configuration in the Absence of CMM-Specific XML Files

If you do not have the CMM-specific XML files or do not want to install CMM-specific XML files, you need to perform the following configuration tasks:

---

Note The problem requiring manual configuration in the absence of CMM-specific XML files has been fixed in the Cisco CallManager 3.2(2c)spF-rc3 support patch. If you load that patch, you do not need to perform the following configuration tasks.

---

•Configure the clock source line primary and clock source line secondary under T1/E1 controllers as per your requirements. The secondary clock source is a backup for the primary clock source and the CMM supports secondary clock sources from 1 to 17. The CMM must have clock source line primary and clock source line secondary configured to avoid any clock slips.

•The default configuration for the CMM is "Cisco Fax Relay." To run "Fax pass through calls," you need to supplement the default configuration with the following two commands:

–mgcp modem pass through voip mode cisco

–no ccm fax protocol cisco

•The default configuration for "echo cancel coverage" is set to 64 ms. This default can be changed as needed under voice-port configuration.

•The default configuration for "input gain" and "output attenuation" is set to 0 dB. This default can be changed as needed under voice-port configuration.

The manual configuration is lost on a reload if you set the CMM for configuration download from Cisco CallManager. If the configuration is lost, you must reconfigure it. To retain the manual configuration, disable the automatic configuration download from Cisco CallManager before doing a CMM reload.

Related Cisco CallManager Caveats—Release 3.2(2c) and/or Earlier

This section describes the related Cisco CallManager caveats in release 3.2(2c) and/or earlier releases.

---

Note The caveats listed below have been fixed in the Cisco CallManager 3.2(2c)spF-rc3 support patch.

---

•The global GW database xxxx.cnf.xml file (in the tftppath directory in Cisco CallManager) does not get updated after changes are made in the MGCP configuration GUI. To update this file, you need to restart "TFTP service" on the Cisco CallManager. (CSCdy10859)

•Adding a new gateway does not automatically create the corresponding xxxx.cnf.xml file (in the tftppath directory in Cisco CallManager). To create this file, you need to restart "TFTP service" on Cisco CallManager. (CSCdy11956)

Related Documentation

For more detailed installation and configuration information, refer to the following publications:

•Catalyst 6500 Series and Cisco 7600 Series Internet Router Communication Media Module Installation and Configuration Note

•Regulatory Compliance and Safety Information for the Catalyst 6500 Series Switches

•Catalyst 6500 Series Switch Installation Guide

•Catalyst 6500 Series Switch Quick Software Configuration Guide

•Catalyst 6500 Series Switch Module Installation Guide

•Catalyst 6500 Series Switch Software Configuration Guide

•Catalyst 6500 Series Switch Command Reference

•Catalyst 6500 Series Switch Cisco IOS Software Configuration Guide

•Catalyst 6500 Series Switch Cisco IOS Command Reference

•System Message Guide—Catalyst 6500 Series, 5000 Family, 4000 Family, 2926G Series, 2948G, and 2980G Switches

•For information about MIBs, refer to

http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml

Obtaining Documentation

Cisco provides several ways to obtain documentation, technical assistance, and other technical resources. These sections explain how to obtain technical information from Cisco Systems.

Cisco.com

You can access the most current Cisco documentation on the World Wide Web at this URL:

http://www.cisco.com/univercd/home/home.htm

You can access the Cisco website at this URL:

http://www.cisco.com

International Cisco web sites can be accessed from this URL:

http://www.cisco.com/public/countries_languages.shtml

Documentation CD-ROM

Cisco documentation and additional literature are available in a Cisco Documentation CD-ROM package, which may have 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.

Registered Cisco.com users can order the Documentation CD-ROM (product number DOC-CONDOCCD=) through the online Subscription Store:

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

Ordering Documentation

You can find instructions for ordering documentation at this URL:

http://www.cisco.com/univercd/cc/td/doc/es_inpck/pdi.htm

You can order Cisco documentation in these ways:

•Registered Cisco.com users (Cisco direct customers) can order Cisco product documentation from the Networking Products MarketPlace:

http://www.cisco.com/en/US/partner/ordering/index.shtml

•Registered Cisco.com users can order the Documentation CD-ROM (Customer Order Number DOC-CONDOCCD=) 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 Systems Corporate Headquarters (California, U.S.A.) at 408 526-7208 or, elsewhere in North America, by calling 800 553-NETS (6387).

Documentation Feedback

You can submit comments electronically on Cisco.com. On the Cisco Documentation home page, click Feedback at the top of the page.

You can e-mail your comments to bug-doc@cisco.com.

You can submit your comments by mail by using the response card behind the front cover of your document or by writing to the following address:

Cisco Systems
Attn: Customer Document Ordering
170 West Tasman Drive
San Jose, CA 95134-9883

We appreciate your comments.

Obtaining Technical Assistance

Cisco provides Cisco.com, which includes the Cisco Technical Assistance Center (TAC) Website, as a starting point for all technical assistance. Customers and partners can obtain online documentation, troubleshooting tips, and sample configurations from the Cisco TAC website. Cisco.com registered users have complete access to the technical support resources on the Cisco TAC website, including TAC tools and utilities.

Cisco.com

Cisco.com offers a suite of interactive, networked services that let you access Cisco information, networking solutions, services, programs, and resources at any time, from anywhere in the world.

Cisco.com provides a broad range of features and services to help you with these tasks:

•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

To obtain customized information and service, you can self-register on Cisco.com at this URL:

http://www.cisco.com

Technical Assistance Center

The Cisco TAC is available to all customers who need technical assistance with a Cisco product, technology, or solution. Two levels of support are available: the Cisco TAC website and the Cisco TAC Escalation Center. The avenue of support that you choose depends on the priority of the problem and the conditions stated in service contracts, when applicable.

We categorize Cisco TAC inquiries according to urgency:

•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.

Cisco TAC Website

You can use the Cisco TAC website 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 website, go to this URL:

http://www.cisco.com/tac

All customers, partners, and resellers who have a valid Cisco service contract have complete access to the technical support resources on the Cisco TAC website. Some services on the Cisco TAC website require 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 this URL to register:

http://tools.cisco.com/RPF/register/register.do

If you are a Cisco.com registered user, and you cannot resolve your technical issues by using the Cisco TAC website, you can open a case online at this URL:

http://www.cisco.com/en/US/support/index.html

If you have Internet access, we recommend that you open P3 and P4 cases through the Cisco TAC website so that you can describe the situation in your own words and attach any necessary files.

Cisco TAC Escalation Center

The Cisco TAC Escalation Center addresses priority level 1 or priority level 2 issues. 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 automatically opens a case.

To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to this URL:

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

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). When you call the center, please have available your service agreement number and your product serial number.

Obtaining Additional Publications and Information

Information about Cisco products, technologies, and network solutions is available from various online and printed sources.

•The Cisco Product Catalog describes the networking products offered by Cisco Systems as well as ordering and customer support services. Access the Cisco Product Catalog at this URL:

http://www.cisco.com/en/US/products/products_catalog_links_launch.html

•Cisco Press publishes a wide range of networking publications. Cisco suggests these titles for new and experienced users: Internetworking Terms and Acronyms Dictionary, Internetworking Technology Handbook, Internetworking Troubleshooting Guide, and the Internetworking Design Guide. For current Cisco Press titles and other information, go to Cisco Press online at this URL:

http://www.ciscopress.com

•Packet magazine is the Cisco monthly periodical that provides industry professionals with the latest information about the field of networking. You can access Packet magazine at this URL:

http://www.cisco.com/en/US/about/ac123/ac114/about_cisco_packet_magazine.html

•iQ Magazine is the Cisco monthly periodical that provides business leaders and decision makers with the latest information about the networking industry. You can access iQ Magazine at this URL:

http://business.cisco.com/prod/tree.taf%3fasset_id=44699&public_view=true&kbns=1.html

•Internet Protocol Journal is a quarterly journal published by Cisco Systems for engineering professionals involved in the design, development, and operation of public and private internets and intranets. You can access the Internet Protocol Journal at this URL:

http://www.cisco.com/en/US/about/ac123/ac147/about_cisco_the_internet_protocol_journal.html

•Training—Cisco offers world-class networking training, with current offerings in network training listed at this URL:

http://www.cisco.com/en/US/learning/le31/learning_recommended_training_list.html

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

CCIP, the Cisco Powered Network mark, the Cisco Systems Verified logo, Cisco Unity, Follow Me Browsing, FormShare, Internet Quotient, iQ Breakthrough, iQ Expertise, iQ FastTrack, the iQ Logo, iQ Net Readiness Scorecard, Networking Academy, ScriptShare, SMARTnet, TransPath, and Voice LAN are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn, Discover All That's Possible, The Fastest Way to Increase Your Internet Quotient, and iQuick Study are service marks of Cisco Systems, Inc.; and Aironet, ASIST, BPX, Catalyst, CCDA, CCDP, CCIE, CCNA, CCNP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, the Cisco IOS logo, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Empowering the Internet Generation, Enterprise/Solver, EtherChannel, EtherSwitch, Fast Step, GigaStack, IOS, IP/TV, LightStream, MGX, MICA, the Networkers logo, Network Registrar, Packet, PIX, Post-Routing, Pre-Routing, RateMUX, Registrar, SlideCast, StrataView Plus, Stratm, SwitchProbe, TeleRouter, and VCO are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries.

All other trademarks mentioned in this document or Web site are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0304R)

Copyright © 2002-2003, Cisco Systems, Inc.
All rights reserved.