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Cisco Catalyst 2900 Series LRE XL Switches

Release Notes for the Catalyst 2900 Series LRE XL Switches, Release 12.0(5.3)WC(1), July 24, 2001

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Table Of Contents

Release Notes for the
Catalyst 2900 Series LRE XL Switches, Cisco IOS Release 12.0(5.3)WC(1)

Contents

Documentation Notes

Upgrading the LRE Switch Software

Considerations for Upgrading an LRE Switch

Which Software Files to Download from Cisco.com

Using the CLI to Upgrade a Catalyst 2900 LRE XL Switch

Related Documentation

Obtaining Documentation

World Wide Web

Cisco 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
Catalyst 2900 Series LRE XL Switches, Cisco IOS Release 12.0(5.3)WC(1)

July 24, 2001

This document provides procedures for upgrading the Catalyst 2900 series Long-Reach Ethernet (LRE) XL switches to Cisco IOS Release 12.0(5.3)WC(1). Use this document in conjunction with the Release Notes for the Catalyst 2900 Series XL and Catalyst 3500 Series XL, Cisco IOS Release 12.0(5.3)WC(1).

Note Before upgrading your your LRE switch, read the "Upgrading the LRE Switch Software" section. If you are upgrading a Catalyst 2900 LRE XL switch, do not use the upgrade procedures in the Release Notes for the Catalyst 2900 Series XL and Catalyst 3500 Series XL Switches, Cisco IOS Release 12.0(5)WC(1). Instead, follow the procedures in this document.

Contents

This document has the following sections:

•"Documentation Notes" section

•"Upgrading the LRE Switch Software" section

•"Related Documentation" section

•"Obtaining Documentation" section

•"Obtaining Technical Assistance" section

Documentation Notes

This section lists corrections to the hardware and software documentation.

•All documentation for this release, except for these release notes, is provided on the Catalyst 2900 XL and Catalyst 3500 XL Documentation CD.

To view the contents of the documentation CD, double-click the index.htm file. Your browser launches, and you can select and view the documents on the CD.

If your PC is set to automatically launch CDs, the index page opens when you insert the CD or when you click the CD icon. If you need more information about how to set your PC to automatically launch CDs, consult your PC operating system documentation or systems administrator.

•Three Long-Reach Ethernet (LRE) profiles were added to this release and are not documented in the Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide and CMS online help:

–LRE-5LL

–LRE-10LL

–LRE-15LL

The PUBLIC-ANSI, PUBLIC-ETSI, LRE-5, LRE-10, and LRE-15 profiles described in the manuals and online help have the interleaver feature enabled for maximum protection against small interruptions on the LRE link.

The interleaver feature delays the data, while increasing protection for the data against very small interruptions in the LRE link. By enabling the low latency feature, data is more susceptible to interruptions on the LRE link, but the delay is removed. The LL in these profiles stands for low latency. In these profiles, the interleaver feature is turned off.

Table 1 lists all of the LRE profiles available on the Catalyst 2900 LRE XL switches.

Note Use the rates and distances in Table 1 as guidelines only. Factors such as the type of cable you use, how it is bundled, and the interference and noise on the LRE link can affect the actual LRE link performance. Contact Cisco Systems for information about limitations and optimization of LRE link performance.

Note The net data rates in Table 1 are slightly less than the gross data rates displayed by the show controllers lre profile names privileged EXEC command.

Table 1 LRE Profiles 

Profile Name
Profile Type
LRE Link Downstream Rate (Mbps)
LRE Link Upstream Rate (Mbps)
Maximum Distance between the LRE Port and the CPE

PUBLIC-ANSI

Public

15.17

4.27

4101 ft (1250 m)

PUBLIC-ETSI

Public

11.38

4.27

4101 ft (1250 m)

LRE-5

Private

5.69

5.69

4921 ft (1500 m)

LRE-10 (default)

Private

11.38

11.38

4101 ft (1250 m)

LRE-15

Private

15.17

17.06

3445 ft (1050 m)

LRE-5LL

Private

5.69

5.69

4921 ft (1500 m)

LRE-10LL

Private

11.38

11.38

4101 ft (1250 m)

LRE-15LL

Private

15.17

17.06

3445 ft (1050 m)


•The "Overview" and "Installation" chapters of the Catalyst 2900 Series XL Hardware Installation Guide and the "Overview" chapter of the Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide describe connecting a Cisco PS-1M-LRE-48 plain old telephone service (POTS) splitter to a private branch exchange (PBX) switch. Cisco Long-Reach Ethernet (LRE) products are designed to share lines with analog, integrated services digital network (ISDN), and digital private branch exchange (PBX) switch telephones that use the 0 to 700 kHz frequency range.

Note Digital telephones connected to digital PBX switches that use frequencies above 700 kHz will not work when sharing a line with LRE signals. Due to the proprietary nature of digital PBX switches, some digital PBX switch services use frequencies above 700 kHz. [CSCdu73260]

•Use only a 19-inch rack to rack-mount a Catalyst 2900 LRE XL switch. Do not install an LRE switch in a 23- or 24-inch rack as described in the Catalyst 2900 Series XL Hardware Installation Guide.

Caution The mounting brackets shipped with a Catalyst 2900 LRE XL switch cannot support the switch in a 23- or 24-inch rack. If you install the switch in a 23- or 24-inch rack, the switch sags towards the rear of the rack.

•The Cisco part numbers for the LRE cables are incorrect in the Catalyst 2900 Series XL Hardware Installation Guide. These are the correct part numbers:

–CAB-5-M120M120-5= (Category 5 cable with two 120-degree, male-to-male RJ-21 connectors)

–CAB-5-M180M120-5= (Category 5 cable with one 180-degree and one 120-degree male-to-male RJ-21 connector)

•The circuit for pins 24 and 49 of the RJ-21 connector listed in Table B-1 of the Catalyst 2900 Series XL Hardware Installation Guide is incorrect. Table 2 lists the correct circuit.

.

Table 2 RJ-21 Cable Pinouts 

Pins
Circuit
Pins
Circuit

1, 26

1, tip/ring

14, 39

14, tip/ring

2, 27

2, tip/ring

15, 40

15, tip/ring

3, 28

3, tip/ring

16, 41

16, tip/ring

4, 29

4, tip/ring

17, 42

17, tip/ring

5, 30

5, tip/ring

18, 43

18, tip/ring

6, 31

6, tip/ring

19, 44

19, tip/ring

7, 32

7, tip/ring

20, 45

20, tip/ring

8, 33

8, tip/ring

21, 46

21, tip/ring

9, 34

9, tip/ring

22, 47

22, tip/ring

10, 35

10, tip/ring

23, 48

23, tip/ring

11, 36

11, tip/ring

24, 49

24, tip/ring

12, 37

12, tip/ring

25, 50

no connect

13, 38

13, tip/ring

   

•The pinouts of a crossover cable shown in Figure B-5 of the Catalyst 2900 Series XL Hardware Installation Guide are incorrect. Figure 1 shows the correct pinouts.

Figure 1 Crossover Cable Pinouts

Upgrading the LRE Switch Software

This section provides information and procedures for upgrading the LRE switch software:

•"Considerations for Upgrading an LRE Switch" section

•"Which Software Files to Download from Cisco.com" section

•"Using the CLI to Upgrade a Catalyst 2900 LRE XL Switch" section

For information about upgrading all other Catalyst 2900 XL and Catalyst 3500 XL switches, see the Release Notes for the Catalyst 2900 Series XL and Catalyst 3500 Series XL, Cisco IOS Release 12.0(5.3)WC(1).

Considerations for Upgrading an LRE Switch

Note Upgrading the LRE switch software involves installing the LRE firmware file (e2rb.bin). You cannot use the Cluster Management Suite (CMS) software to install this file. To upgrade the LRE switch software, use the CLI procedure described in the "Using the CLI to Upgrade a Catalyst 2900 LRE XL Switch" section.

Note Before downloading the IOS .tar file, we recommend that you delete the existing LRE firmware file (e2rb.bin) from the switch (Step 6). After copying the new image and HTML files to the switch Flash memory (Step 16), install the new LRE firmware file (Step 17). [CSCdu27029]

When you upgrade a switch, the switch continues to operate while the new software is copied to Flash memory. Features provided by the new software are not available until you reboot the switch.

•If there is enough space on the switch Flash memory, the new image is copied to the switch but does not replace the existing image until you reboot the switch. If a failure occurs while you are copying the new image to the switch, you can use the existing image to reboot the switch.

•If there is not enough space for two images on the switch Flash memory, the new image is copied over the existing one. If a failure occurs while you are copying the new image to the switch, or if the new startup configuration fails, you must use the XMODEM Protocol to reinstall a previous or new image to the switch Flash memory. For more information, refer to the "Recovering from Corrupted Software" section in the "Troubleshooting" chapter of the Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide.

Note The minimum software version required on the LRE switches is Cisco IOS Release 12.0(5.3)WC(1).

Which Software Files to Download from Cisco.com

New software releases are posted on Cisco.com and are also available through authorized resellers. From Cisco.com, you can also download a TFTP server application to copy the switch software from your PC to the switch.

Table 3 describes the file extensions and what they mean for the upgrade procedure. Table 4 lists the software files you need from Cisco.com.

Note We recommend that you download the combined .tar file that contains the image file and the HTML files. The procedures in this document are for upgrading a switch by using the combined .tar file.

Table 3 Possible Extensions for IOS Software Files

Extension
Description

.tar

A compacted file from which you can extract files by using the tar command. There are two types of .tar files:

•A combined .tar file that contains both the IOS image file and the HTML files.

•An HTML .tar file that has the letters HTML in its name and contains just the HTML files for the IOS release. From the CLI, you can upgrade the switch software by using this HTML file and the IOS image file.

.bin

The IOS image file and the LRE firmware file that you can copy to the switch through TFTP.


Table 4 Catalyst 2912 LRE XL and Catalyst 2924 LRE XL IOS Software Files 

Filename
Description

c2900XL-c3h2s-mz.120-5.3.WC.1.bin

IOS image-only file

e2rb.bin

LRE firmware file

c2900XL-c3h2s-mz.120-5.3.WC.1.tar

IOS image and HTML files

c2900XL-html-plus.120-5.3.WC.1.tar

HTML files


Using the CLI to Upgrade a Catalyst 2900 LRE XL Switch

Follow these steps to upgrade the LRE switch software:

Step 1 If your PC or workstation cannot act as a TFTP server, copy the file to a TFTP server to which you have access.

Step 2 Access the CLI by starting a Telnet session or by connecting to the switch console port through the RS-232 connector.

To start a Telnet session on your PC or workstation, enter the following command: 

server% telnet switch_ip_address

Enter the Telnet password if you are prompted to do so.

Step 3 Enter privileged EXEC mode: 

switch> enable

switch#

Enter a password if you are prompted to do so.

Step 4 Display the name of the running (default) image file (BOOT path-list). The following example shows the name in italic: 

switch# show boot

BOOT path-list:    flash:current_image

Config file:       flash:config.text

Enable Break:      1

Manual Boot:       no

HELPER path-list: 

NVRAM/Config file

buffer size: 32768

If there is no file defined in the BOOT path-list, enter dir flash: to display the contents of Flash memory. The file named c2900XL-c3h2-mz-120-5.1.WC.1.bin is your previous image file. 

switch# dir flash:

Directory of flash:/


175  -rwx         111   May 17 2001 13:25:53  info.ver

165  -rwx        8192   May 17 2001 13:22:13  e2rb.bin

  4  drwx       10240   May 17 2001 13:25:52  html

167  -rwx        1496   May 17 2001 13:21:46  config.text

  6  -rwx         111   May 17 2001 13:23:41  info

176  -rwx        1422   Jan 01 1970 00:14:43  env_vars

  7  -rwx     1750311   May 17 2001 13:24:58  c2900XL-c3h2s-mz.120-5.1.WC.1.bin


7741440 bytes total (4692992 bytes free)

Step 5 Using the exact, case-sensitive name of the combined .tar file that you downloaded, rename the running image file to that name, and replace the .tar extension with a .bin extension. The image file name is then the same as the downloaded file name but with a .bin extension. This step does not affect the operation of the switch. 

switch# rename flash:c2900XL-c3h2s-mz.120-5.1.WC.1.bin 
flash:c2900XL-c3h2s-mz.120-5.3.WC.1.bin

Destination filename [c2900XL-c3h2s-mz.120-5.3.WC.1.bin]?

Step 6 Delete e2rb.bin file: 

switch# delete flash:e2rb.bin

Step 7 Press Enter to confirm deletion of the e2rb.bin file.

Step 8 Enter global configuration mode: 

switch# config terminal

Step 9 Disable access to the switch HTML pages: 

switch(config)# no IP http server

Step 10 If you entered the boot command with the name of the image file, enter this command to change it to the new name:

Note You do not need to perform this step if the show boot command entered in Step 4 displays no image name; the switch automatically finds the correct file to use when it resets. 

switch(config)# boot system flash:new_image

For example: 

switch(config)# boot system flash:c2900XL-c3h2s-mz-120-5.3.WC.1.bin

Step 11 Return to privileged EXEC mode: 

switch(config)# end

Step 12 Remove the HTML files: 

switch# delete flash:html/*

Step 13 Press Enter to confirm the deletion of each file. Do not press any other keys during this process.

Step 14 If upgrading from Release 11.2(8)SA5 or earlier, remove the files in the Snmp directory: 

switch# delete flash:html/Snmp/*

Note Make sure the S in Snmp is uppercase.

Step 15 Press Enter to confirm the deletion of each file. Do not press any other keys during this process.

Step 16 Enter the following command to copy the new image and HTML files to the switch Flash memory:

Caution In this step, the tar command copies the combined .tar file that contains both the image and the HTML files. You do not need to copy an HTML.tar file in this procedure. 
switch# tar /x tftp://server_ip_address/path/filename.tar flash:    

Loading /path/filename.tar from server_ip_address (via VLAN1): !

extracting info (111 bytes)

extracting c2900XL-c3h2s-mz.120-5.3.WC.1.bin (1750311 
bytes)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

html/ (directory)

extracting html/ClusterBuilder.html.gz (670 bytes)

extracting html/ClusterManager.html.gz (624 bytes)

extracting html/back.html.gz (211 bytes)!

. . .

Depending on the TFTP server being used, you might need to enter only one slash (/) after the server_ip_address in the tar command. The tar command extracts the IOS image and the HTML files from the combined .tar file during the TFTP copy to the switch.

Step 17 Copy the e2rb.bin file to the switch Flash memory: 

switch# copy tftp://server_ip_address/path/e2rb.bin flash:

Destination filename [e2rb.bin]? 

Accessing tftp://server_ip_address/path/e2rb.bin...

Loading /path/e2rb.bin from server_ip_address (via VLAN1): !!

[OK - 8192 bytes]


8192 bytes copied in 0.259 secs

Step 18 Enter global configuration mode: 

switch# configure terminal

Enter configuration commands, one per line. End with CNTL/Z.

Step 19 Re-enable access to the switch HTTP pages: 

switch(config)# IP http server

Step 20 Return to privileged EXEC mode: 

switch(config)# end

Step 21 Reload the new software with the following command: 

switch# reload

System configuration has been modified. Save? [yes/no]: y

Proceed with reload? [confirm]

Step 22 Press Return to confirm the reload.

Your Telnet session ends when the switch resets.

Step 23 After the switch reboots, use Telnet to return to the switch, and enter the privileged EXEC show version command to verify the upgrade procedure.

If you have a previously opened browser session to the upgraded switch, close the browser, and start it again to ensure that you are using the latest HTML files.

Related Documentation

The following publications provide more information about the LRE switches and the LRE switch software:

•Release Notes for the Catalyst 2900 Series XL and Catalyst 3500 Series XL, Cisco IOS Release 12.0(5.3)WC(1)

•Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide

•Catalyst 2900 Series XL and Catalyst 3500 Series XL Command Reference

•Catalyst 2900 Series XL Hardware Installation Guide

•Cisco 575 LRE CPE Hardware Installation Guide

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

Cisco Documentation CD-ROM

Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Cisco 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/public/ordsum.html

•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 in conjunction with the documents listed in the "Related Documentation" section.

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All rights reserved.