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Cisco IOS Software Releases 12.2 Special and Early Deployments

Release Notes for Cisco MWR 1941-DC Mobile Wireless Edge Router for Cisco IOS Release 12.2(15)MC1a

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Release Notes for Cisco MWR 1941-DC Mobile Wireless Edge Router for Cisco IOS Release 12.2(15)MC1a

Table Of Contents

Release Notes for Cisco MWR 1941-DC Mobile Wireless Edge Router for Cisco IOS Release 12.2(15)MC1a

Contents

Introduction

System Configuration Requirements

Memory Recommendations

Determining the Software Version

Upgrading to a New Software Release

Upgrading to a New ROM Monitor Version

New Features in the Cisco IOS Release 12.2(15)MC1a Software

Limitations, Restrictions, and Important Notes

Caveats in Cisco IOS Release 12.2(15)MC1a

Open Caveats

Troubleshooting

Documentation Updates

Related Documentation

Cisco Mobile Wireless Cell Site DCN

Obtaining Documentation

World Wide Web

Documentation CD-ROM

Ordering Documentation

Documentation Feedback

Obtaining Technical Assistance

Cisco.com

Technical Assistance Center

Cisco TAC Web Site

Cisco TAC Escalation Center


Release Notes for Cisco MWR 1941-DC Mobile Wireless Edge Router for Cisco IOS Release 12.2(15)MC1a


September 25, 2003

Cisco IOS Release 12.2(15)MC1a

OL-13984-07

These release notes are for the Cisco MWR 1941-DC Mobile Wireless Edge Router for Cisco IOS Release 12.2(15)MC1a. Cisco IOS Release 12.2(15)MC1a is the required to implement the Cisco MWR 1941-DC router in a Cell Site Data Communications Network (DCN) solution.

These release notes are updated as needed to describe new features, memory requirements, hardware support, software platform deferrals, and changes to the microcode and related documents.

For a list of the software caveats that apply to Cisco IOS Release 12.2(15)MC1a, see the "Caveats in Cisco IOS Release 12.2(15)MC1a" section. To review the release notes for Cisco IOS Release 12.2, go to www.cisco.com and click Technical Documentation. Select Release 12.2 from the Cisco IOS Software drop-down menu. Then click Cisco IOS Release Notes > Cisco IOS Release 12.2.

Contents

This document contains the following sections:

Introduction

System Configuration Requirements

New Features in the Cisco IOS Release 12.2(15)MC1a Software

Limitations, Restrictions, and Important Notes

Caveats in Cisco IOS Release 12.2(15)MC1a

Troubleshooting

Documentation Updates

Related Documentation

Obtaining Documentation

Obtaining Technical Assistance

Introduction

With Cisco IOS Release 12.2(15)MC1a, the MWR 1941-DC router can be used to extend a mobile operator's DCN to the cell site, providing the ability to remotely manage radio and cell site equipment remotely from the operations center.

A cell site DCN solution minimizes the need to dispatch technicians for every problem that might occur at the cell site by providing the ability to perform the following types of maintenance tasks remotely:

troubleshooting

diagnosis

repairs

control

upgrades

routine maintenance of the cell site devices

Additionally, the MWR 1941-DC router cell site DCN implementation provides IP connectivity to the cell site, enabling the use of IP-related applications that provide operation support (for example, web camera for site surveillance, IP telephone for voice connectivity, and LAN extension to the cell site to provide remote access to network applications, data, and access to the Internet and/or intranet).

Cisco network modules and WAN interface cards used with the MWR 1941-DC router provide a variety of connectivity options at the cell site.

System Configuration Requirements

When being implemented in an Cell Site DCN solution, the Cisco MWR 1941-DC router requires the following system configuration:

Cisco IOS 12.2(15) MC1a software be installed.

Network Time Protocol (NTP)

Network Time Protocol must be configured. The Cisco MWR 1941-DC router uses NTP to maintain a clocking source for the proper time stamping of system messages and log files.

Redundancy—Standalone Mode

The MWR 1941-DC router must be configured to operate in standalone mode. The standalone option must be configured from redundancy mode.

To manually set the relays to open or closed, do the following starting in global configuration mode:

Step 1. Enter redundancy mode.

Router(config)# redundancy

Step 2. Enter the y-cable mode.

Router(config-r)# mode y-cable

Step 3. Specify that the router is to be used as a stand-alone device. This command closes the relays.

Router(config-r-y)# standalone 

Step 4. Exit y-mode configuration mode.

Router(config-r-y)# exit

To verify the status of the relays on an MWR 1941-DC router, use the show controllers command.

Memory Recommendations

Table 1 Memory Recommendations for the Cisco IOS Release 12.2(15)MC1a

Platform
Software Image
Flash
Memory Recommended
DRAM
Memory Recommended
Runs From

Cisco MWR 1941-DC Mobile Wireless Edge Router

mwr1900-is-mz

64 MB Flash

128 MB DRAM

RAM



Note When running Cisco IOS Release 12.2(15)MC1a, we recommend that the smart-init feature be enabled.

The smart-init feature is an extension to the existing memory split program of the Cisco IOS software running on your router that computes iomem size by looking at the network modules installed in the system and uses this iomem for carrying out the memory split.

Setting the memory size using the memory-size iomen command disables the smart-init feature. If smart-init is disabled and the iomem is increased to 20% or more, the tftpboot operation using the mwr1900-is-mz image will fail. If this situation should occur, copy a new image to slot0 and boot from slot0.


Determining the Software Version

To determine the image and version of Cisco IOS software running on your Cisco MWR 1941-DC router, log in to the Cisco MWR 1941-DC and enter the show version EXEC command:

router> show version
     Cisco Internetwork Operating System Software 
     IOS (tm) 1900 Software (MWR1900-IS-MZ), Version 12.2(15)MC1a,EARLY DEPLOYMENT RELEASE
     SOFTWARE (fc1)

Upgrading to a New Software Release

For general information about upgrading to a new software release, refer to Software Installation and Upgrade Procedures located at the following URL:

http://www.cisco.com/warp/public/130/upgrade_index.shtml

Upgrading to a New ROM Monitor Version

The Cisco MWR 1941-DC router ROM Monitor (ROMMON) consists of two modules:

A resident module that is not changed during the upgrade procedure.

An upgradable module that is updated during the upgrade procedure. This is the only module that you will download from Cisco.com.


Note Before performing this procedure, you must download the new ROMMON image from Cisco.com. The download procedure is the same as downloading Cisco IOS software images.



Note In the event of a power outage, the ROM monitor download will not be successful.



Note Command output is similar to the following.


To upgrade the ROMMON version on your Cisco MWR 1941-DC router, complete these steps from EXEC mode:


Step 1 Copy the new ROMMON image from a TFTP server to slot0.

Step 2 Verify that the new image has been copied:

Router#dir slot0: 
  Directory of slot0:/
  3 -rw- 871 Mar 01 1993 00:05:02 MWR1900-3-default.cfg
  4 -rw- 610704 Mar 01 1993 00:10:30 MWR1900_RM2.srec.122-8r.MC3

Step 3 Upgrade the current configuration by entering the upgrade rom-monitor command as shown in the following example:

Router# upgrade rom-monitor file slot0:MWR1900_RM2.srec.122-8r.MC3
This command will reload the router. Continue? [yes/no]:y

Step 4 Press Enter to continue. The router begins downloading the ROMMON image. The router automatically reboots.

ROMMON image upgrade in progress
Erasing boot flash
eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Programming boot flash pppp

Now Reloading
System Bootstrap, Version 12.2(20010915:181836) DEVELOPMENT SOFTWARE
Copyright (c) 1994-2001 by cisco Systems, Inc.

 Running new upgrade for first time

System Bootstrap, Version 12.2(8r)MC3, RELEASE SOFTWARE (fc1)
TAC Support:http://www.cisco.com/tac
Copyright (c) 2002 by cisco Systems, Inc.
mwr1900 processor with 131072 Kbytes of main memory
Main memory is configured to 64 bit mode with parity disabled

Upgrade ROMMON initialized
rommon 1 > 

New Features in the Cisco IOS Release 12.2(15)MC1a Software

With Cisco IOS Release 12.2(15)MC1a, the MWR 1941-DC router supports the following Cisco network modules and interface cards:

Voice/WAN Interface Cards (VWICs)

2-port T1/Fractional T1 Drop and Insert Multiflex Trunk Interface Card: VWIC-2MFT-T1-DIR(=)

2-port E1/Fractional E1 Drop and Insert Multiflex Trunk Interface Card: VWIC-2MFT-E1-DIR(=)

2-port Asynchronous/Synchronous WAN Interface Card: WIC-2A/S(=)

Cisco Network Modules

Alarm Interface Card—NM-AIC-64(=)

16-port Ethernet Switch—NM-16ESW(=)


Note When using the NM-16ESW with the MWR 1941-DC router, shielded cables are required and IP phone inline power is not supported.


Asynchronous

16-port Asynchronous Serial—NM-16A(=)

32-port Asynchronous Serial—NM-32A(=)

4-port Asynchronous/Synchronous Serial: NM-4A/S(=)

8-port Asynchronous/Synchronous Serial: NM-8A/S(=)

1-port T3/E3: NM-1T3/E3(=)

Limitations, Restrictions, and Important Notes


Caution The Cisco MWR 1941-DC router does not support online insertion and removal (OIR) of WAN interface cards. Any attempt to perform OIR on a card in a powered up router might cause damage to the card.


Caution The Cisco MWR 1941-DC router does not support online insertion and removal (OIR) of network modules. Any attempt to perform OIR on a card in a powered up router might cause damage to the card.


Caution Removing the compact flash from the Cisco MWR 1941-DC router during a read/write operation might corrupt the contents of the compact flash, rendering it useless. To recover from an accidental removal of or corruption to the compact flash, a maintenance spare with the appropriate bootable Cisco IOS software image might be needed.

Using the 1-port T3/E3: NM-1T3/E3(=)

When using the 1-port T3/E3 network module in your MWR 1941-DC router configuration, note that E3 mode is not supported with Cisco IOS Release 12.2(15)MC1a.

Upgrading the VWIC-2MFT-T1-DIR Microcode

When upgrading the image on your Cisco MWR 1941-DC router, power cycle the router or perform a microcode reload on the VWIC-2MFT-T1-DIR to ensure that the firmware for the VWIC-2MFT-T1-DIR is updated during the upgrade.

Caveats in Cisco IOS Release 12.2(15)MC1a

The following sections list and describe the open caveats for the Cisco MWR 1941-DC router running Cisco IOS Release 12.2(15)MC1a. Only severity 1 through 3 caveats are included.

Caveats describe unexpected behavior 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.

Caveats in Cisco IOS Releases 12.2 and 12.2 T are also in Cisco IOS Release 12.2(15)MC1a. For information on caveats in Cisco IOS Release 12.2, see Caveats for Cisco IOS Release 12.2. For information on caveats in Cisco IOS Release 12.2 T, see Caveats for Cisco IOS Release 12.2 T. These two 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 use Bug Navigator II to find caveats of any severity for any release. To reach Bug Navigator II, Login to Cisco.com and click Software Center: Cisco IOS Software: Cisco Bugtool Navigator II. Another option is to go directly to http://www.cisco.com/support/bugtools.


Open Caveats

There are no known caveats in Cisco IOS Release 12.2(15)MC1a.

Troubleshooting

Collecting Data for Router Issues

To collect data for reporting router issues, issue the following command:

show tech-support—Displays general information about the router when it reports a problem.

Collecting Data for ROMmon Issues

To collect data for ROMmon issues, issue the following command while in EXEC mode:

showmon— Displays currently selected ROM monitor.

Collecting Data for Router Rebooting to ROMmon

If a router reboot to ROMmon occurs, issue the dir device ID command where device ID is slot0:, and look for the router processor file (crashinfo*). Once you have located the file, you can email the file along with a description of the problem to your Cisco representative.

Documentation Updates

There are no documentation updates at this time.

Related Documentation

These documents are available for implementing the Cisco MWR 1941-DC Mobile Wireless Edge Router in a Cell Site DCN and are available on Cisco.com and the Documentation CD-ROM:

Cisco Mobile Wireless Cell Site DCN

http://www.cisco.com/univercd/cc/td/doc/product/wireless/csdcn/index.htm

Cisco MWR 1941 Mobile Wireless Edge Router Documents

Cisco MWR 1941-DC Mobile Wireless Edge Router Software Configuration Guide

Cisco MWR 1941-DC Mobile Wireless Edge Router Rack Mounting Instructions

Cisco Network Modules Installation Guides

Network Modules Quick Start Guide

Cisco Network Modules Hardware Installation Guide

Cisco Interface Cards Installation Guides

Quick Start Guide: Interface Cards

Cisco Interface Cards Installation Guide

VWIC-2MFT-T1-DIR, VWIC-2MFT-E1-DIR Installation Instructions

Release Notes

On CCO at:

http://www.cisco.com/univercd/cc/td/doc/product/wireless/csdcn/index.htm

On Cisco.com at:

Technical Documentation: Wireless: Cisco Mobile Wireless Cell Site DCN

On the Documentation CD-ROM at:

Cisco Product Documentation: Wireless: Cisco Mobile Wireless Cell Site DCN


Note To be sure of obtaining the latest information, access the online documentation.


Obtaining Documentation

These sections explain how to obtain documentation from Cisco Systems.

World Wide Web

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

http://www.cisco.com

Translated documentation is available at 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 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.

Ordering Documentation

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/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 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. In the Cisco Documentation home page, click the Fax or Email option in the "Leave Feedback" section at the bottom 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: 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 online 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

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 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

If you want to obtain customized information and service, you can self-register on Cisco.com. To access Cisco.com, go to this URL:

http://www.cisco.com

Technical Assistance Center

The Cisco Technical Assistance Center (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 Web Site and the Cisco TAC Escalation Center.

Cisco TAC inquiries 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.

The Cisco TAC resource that you choose is based on the priority of the problem and the conditions of service contracts, when applicable.

Cisco TAC Web Site

You can use the Cisco TAC Web Site 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 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 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 this URL to register:

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

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

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

If you have Internet access, we recommend that you open P3 and P4 cases through the Cisco TAC Web Site.

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.