Release Notes for Cisco MICA Portware Version 2.7.4.0

Table Of Contents

Release Notes for Cisco MICA Portware Version 2.7.4.0 on Cisco AS5300 and AS5800 Universal Access Servers and Cisco 3600 and Cisco 3700 Series

New Features for Version 2.7.4.0

Continued Feature Support for Cisco MICA Portware

Compatibility Requirements

Supported Platforms

Portware Features

Known Problems with Cisco MICA Version 2.7.4.0

Bugs

Additional Cisco MICA Portware Bugs

Problems Resolved in Cisco MICA Version 2.7.4.0

Bug Toolkit

Downloading Portware Modem Code

SPE Download Tasks

Modem-Pool Download Tasks

Related Links

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 Cisco MICA Portware Version 2.7.4.0 on Cisco AS5300 and AS5800 Universal Access Servers and Cisco 3600 and Cisco 3700 Series

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November 25, 2002

These release notes describe Cisco MICA Portware Version  2.7.4.0 with Cisco IOS software on Cisco AS5300 and Cisco AS5800 universal access servers and the Cisco 3600 and Cisco 3700 series. Portware Version 2.7.4.0 is a non-V.92 maintenance release.

This document includes the following sections:

•New Features for Version 2.7.4.0

•Compatibility Requirements

•Known Problems with Cisco MICA Version 2.7.4.0

•Problems Resolved in Cisco MICA Version 2.7.4.0

•Downloading Portware Modem Code

•Related Links

•Obtaining Documentation

•Obtaining Technical Assistance

New Features for Version 2.7.4.0

The following features are new in this Version 2.7.4.0 maintenance release:

S74—Minimum duration of TRN1d signal in milliseconds (CSCdv46797).

S74 allows you to optimize the overall time to connect for V.90 calls. As the S74 value is lowered, the average call connect time is also lowered. However, line impairments can cause the lowering of this value to have diminishing returns. For example, if you reduce the S74 value to 3096, a one-second reduction in connect time in low impairment calls results. Values of S74 less than 1500 (1.5 seconds of TRN1d) have minimal effect.

The TRN1d signal is sent by the server modem during a period when the server trains its echo canceller and the client trains its equalizer. If the minimum duration of TRN1d has been sent, but the Cisco MICA echo canceller has not sufficiently converged, the duration of TRN1d is extended (up to the maximum allowed by the V.90 specification).

In addition, there is a modem handshake that can extend the server signal following TRN1d (signal-J in phase three of a modem connection) by not responding (with S/S-bar) if its equalizer has not converged. In case the modem handshake is not successful, Cisco MICA can be configured to compensate by increasing the S74 value. If the initial trainup attempt fails, Cisco MICA always sends the maximum TRN1d on successive attempts.

If you want to lower overall connect time, an S74 value of 1500 is recommended. At that point you should determine whether CSR or average connect speed has been affected. If your S74 changes cause CSR or connect-times to worsen, then the default S74 value of 4096 should be restored.

Default for S74 is 4096, maximum value 4096, and minimum value 0.

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Note The S74 value is a minimum value. If Cisco MICA detects that the echo canceller has not converged sufficiently, it continues sending TRN1d until either the EC converges or the maximum allowed TRN1d time of 4.092 seconds is sent. However, Cisco MICA has no method to know if the equalizer in your modem has had sufficient trainup time. If it has not, either a retrain or a call drop could occur.

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Continued Feature Support for Cisco MICA Portware

Cisco MICA Portware Version 2.7.4.0 continues to support Version 2.7.3.0 and Version 2.7.2.0 features. Refer to the following documents:

•Release Notes for Cisco MICA Portware Version 2.7.3.0 on Cisco AS5x00 Universal Access Servers

•Release Notes for Cisco MICA Portware Version 2.7.2.0 on Cisco AS5x00 Universal Access Servers.

Compatibility Requirements

Cisco MICA Portware Version 2.7.4.0 is backward compatible and runs on Cisco IOS software release 11.2P, 11.3T, 12.0, 12.1, 12.1(5), and 12.2(2)XA with some feature limitations.

Refer to the Compatibility Matrixes for Cisco AS5x00, Cisco 3600, and Cisco 3700 Platforms with Cisco MICA 6-Port and 12-Port Modem Module Portware.

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Note For a list of modems tested with Cisco MICA portware, use the following link:
http://www.cisco.com/warp/public/cc/pd/as/as5800/prodlit/modem_rg.htm

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Supported Platforms

Cisco MICA Portware Version 2.7.4.0 is supported on the following platforms:

•Cisco 3600 series

•Cisco 3700 series

•Cisco AS5300

•Cisco AS5800

For platform-specific information, refer to the following documents:

•Cisco 3600 Series Routers Release Notes

•Cisco AS5300 Universal Access Servers Release Notes

•Cisco AS5800 Universal Access Server Release Notes

Portware Features

Table 1 Feature Content by Modem Version 

Portware Version	Feature Content
2.7.4.0	Maintenance release. New features added to existing 2.7.3.0 features. •New S-register: –S74—Minimum duration of TRN1d signal in milliseconds. S74 replaces S62.
2.7.3.0	Maintenance release. New features added to existing 2.7.2.0 features. Cisco IOS Software Release 12.1(5) support. •V.110 blind connect feature for compatibility with nonstandard clients (CSCdr39887), which is enabled by bit 9 in S-register S54. •New S54 value: S54=1024 •New S-registers: –S71 and S72 (Decouple maximum symbol rates for V.90 and V.34) –S64, finer granularity in modulation selection (CSCdm94337)
2.7.2.0	Maintenance release. New features added to existing 2.7.1.0 features. Cisco IOS Software Release 12.1(5) support. •W, X, and (,) dial modifiers •Call Tracker •Support for IPDC protocol for call control signaling •Additional V.110 speeds (CSCdm43898): 38,400, 28,800, 24,000, 12,000 bps •Additional dial modifiers (CSCdk10292) •Decoupled V.90 power levels for S-registers S39 and S59 (CSCdm52396) •New values for S54 general capabilities register •Signal quality threshold changes •Parity for error controlled connections (CSCdj92333) •Added client modems for V.90 Digital Impariment Learning (DIL) sequence detection
2.7.1.0	Feature release. New features added to existing Version 2.6.2.0 features. •V.110 ISDN rate specification •spe download command •Cisco AS5800 supported on Cisco IOS Release 12.0(5)T only Modulation •ITU-T Recommendation Q.931 V.110 Bearer Rates: 1200 bps, 2400 bps, 4800 bps, 7200 bps, 9600 bps, 14,400 bps, 19,200 bps, 38,400 bps. •ITU-T Recommendation Q.931 Intermediate Rates: 8k, 16k, 32k, and 64k bps.
2.6.2.0	Maintenance release. New features added to existing Version 2.6.1.0 features. Signaling •Resource Pool Management (RPM): –Ring-back tone generation. Port Management •Improved port management interfacing for acquiring modem/port data for AAA records.
2.6.1.0	SS7 support added to Version 2.5.1.0 features. Signaling •Continuity Testing (COT) of DSO channels in SS7 networks.
2.5.1.0	V.90 and RFC-2217 dialout support for fax/data. Note The Cisco DialOut Utility (CDU) is no longer supported. Refer to the Cisco DialOut Utility End of Sale/Shipping bulletin and the Sample NAS Configurations for Cisco DialOut Utility document for information. Modulation •V.90 standard supporting rates of 56,000 to 28,000 in 1333.3-bps increments. •Fax out (transmission) Group 3, standards EIA 2388 Class 2 and EIA 592 Class 2.0, at modulations V.33, V.29, V.27ter, V.21, and V.17.
2.3.1.0	R1 support plus K56flex maintenance. Signaling •R1 noncompelled and semicompelled.
2.2.3.0	K56flex support. Modulation •Rockwell K56flex at 56,000 to 32,000 in 2000 bps increments.
2.0.1.7	Initial V.34+ release. Modulation •ITU-T V.34 Annex 12 at 33600 and 31200 bps. •ITU-T V.34 at 26,400, 24,000, 21,600, 19,200, 16,800, 14,400, 12,000, 9600, 7200, 4800, or 2400 bps. •V.32bis = 14400, 12000, 9600, 7200, 4800; V.32 = 9600, 4800; V.22bis = 2400, 1200; V.21 = 300; Bell212A = 1200, Bell103 = 300; V.22 = 1200; V.23 = 1200/75. Signaling •MF •DTMF •R2 compelled, noncompelled, and semicompelled. Protocols •ITU-T V.42 (including MNP 2-4 and LAPM) Error Correction. •ITU-T V.42bis (1K nodes) and MNP 5 Data Compression. Modem Standard •ITU-T V. 25—Automatic calling or answering equipment on dialup lines. This standard includes the procedures for disabling echo control devices for calls that are established manually and automatically.

Known Problems with Cisco MICA Version 2.7.4.0

This section describes known problems with portware Version 2.7.4.0.

Bugs

•CSCdt68782—New case of Hex being marked Bad seen with ASSERT Failure

•CSCdu67467—Digital Pad values are not reported properly

•CSCdw05174—Improvement for shorter call setup time needed for Cisco MICA

•CSCdw62027—Cisco MICA timer free+forget is not atomic

•CSCdt15719—EOABT connect failures

•CCSCdt47352—Low CSR on vendor modem

•CSCdt39317—PCMCIA client modem falling back to V.34 from V.90

Additional Cisco MICA Portware Bugs

The following issues were found in the 2.9.x.x branch of Cisco MICA portware, but they are present and not yet resolved in Cisco MICA portware version 2.7.4.0:

•CSCdu41382—3429Hz V.90 uplink should be disabled by default

•CSCdt95223—Cisco MICA too quick to go into Link state before detecting BUSY

•CSCdu25569—V.110 flow control might corrupt user data

•CSCdu84874—Incorrect L1 transmitting level during V.90 phase 2 trainup

•CSCdv13917—Lower symbol rates should be supported in V.90 phase 2 trainup

•CSCdu66553—Improve Cisco MICA bad frame averaging

•CSCdv70704—Bit 40 of V.90 INFO0d should be cleared if 3429 uplink rate disabled

•CSCdv02248—Fail to train on client #YJSDPN

Problems Resolved in Cisco MICA Version 2.7.4.0

•CSCds50294—Modem goes into sudden connect failure mode

•CSCdw86811—Bad modems after reload and check modems sequence

•CSCdu24851—Single-bit program memory corruption in Cisco MICA

•CSCdu25847—Add capability to detect modem degradations and trigger reload

•CSCdw50879—SP_DIAG message should not take modem out of service

•CSCdv46797—Capability needed to reduce EC training time

Bug Toolkit

If you have an account on Cisco.com, you can use Bug Navigator II to find caveats of any severity for any release. Access Bug Navigator II at the following location:

http://www.cisco.com/support/bugtools

Or access Bug Navigator II from Cisco.com by logging in and selecting Service & Support: Technical Assistance Center: Select & Download Software: Jump to a software resource: Software Bug Toolkit/Bug Watcher.

Downloading Portware Modem Code

Cisco supports portware configuration using service processing element (SPE) configuration commands. The spe command allows portware to be downloaded to the SPE. The spe command is available for use with Cisco IOS Software Release12.0(4)XI1, 12.0(5)T, and higher.

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Note If you enter the copy xxxx modem command on an access server running Cisco IOS Release 12.0(4)XI1, 12.0(5)T, 12.1(1), or higher, you are prompted to use the spe command.

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SPE Download Tasks

To download modem portware/firmware using the spe command, enter the spe command, one configuration command per line.

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Step 1 Enter the spe command and subcommands, one configuration command per line:

Router# configure terminal

Router(config)# spe <slot>/<spe_begin> <slot>/<spe_end>

Router(config-spe)# firmware location system:/ucode/mica_port_firmware

Router(config-spe)# ^Z

For example, the following display shows a Cisco AS5300 SPE download to all modems in Slot 1 (that is, all modems on a feature card containing ten 6-port modem modules). The modem code resides in the Flash memory, and the modem code filename is mica-modem-portware.2.7.4.0.bin.

Router(config)# spe 1/0 1/9

Router(config-spe)# firmware location flash:mica-modem-portware.2.7.4.0.bin

Step 2 Copy the configuration from NVRAM into running RAM:

Router# copy running-config startup-config

Download occurs when the modems become available and shows the SPE firmware upgrade option defined (default: busyout). The spe command generates NVRAM modem download and configuration file entries.

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Note If the configuration is not saved as described above, download of the portware specified with the spe command will not occur after the next reboot.

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For detailed information on the spe command, go to the following link:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120t/120t7/spe1206t.htm

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Modem-Pool Download Tasks

If you have an account on Cisco.com, you can download modem portware/firmware using FTP if you are using Cisco IOS Software Release 12.0(5)T or earlier at the following link:

http://www.cisco.com/kobayashi/sw-center/sw-access.shtml

Related Links

For further information about Cisco MICA portware and Cisco IOS software, see the following related sources:

•Cisco AS5x00 Cisco MICA 6-Port and 12-Port Modem Module Portware/Cisco IOS Software Compatibility Matrixes

•Cisco MICA Modem Dial Modifiers for Cisco AS5300, Cisco AS5400, and Cisco AS5800 Universal Access Servers

•Release Notes for Cisco MICA Portware Version 2.7.2.0 on Cisco AS5x00 Universal Access Servers.

•Release Notes for Cisco MICA Portware Version 2.7.3.0 on Cisco AS5x00 Universal Access Servers

•Cisco 3600 Series Routers Release Notes

•Cisco AS5300 Universal Access Servers Release Notes

•Cisco AS5800 Universal Access Server Release Notes

•Cisco IOS software release 12.1 index page

•Cisco IOS software release 12.2 index page

•Cisco 3600 Series Routers index page

•AT Command Set and Register Summary for Cisco MICA 6-Port Modules

•SPE and Firmware Download Enhancements

•Cisco AS5300 universal access servers Cisco MICA release notes index page

•Cisco AS5300 access servers, Appendix A, "Managing Modems," and Appendix B, "Rom Monitor," in the Cisco AS5300 Universal Access Server Software Configuration Guide

•Modem Management Commands

•Cisco IOS Dial Services Command Reference for Cisco IOS Software Release 12.2

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Note The Cisco DialOut Utility (CDU) is no longer supported. Refer to the Cisco DialOut Utility End of Sale/Shipping bulletin and the Sample NAS Configurations for Cisco DialOut Utility document for information.

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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 CCO 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

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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.

We appreciate and value your comments.