Table of Contents

Contents
Cisco Broadband Operating System
New Features for CBOS Release 2.3.5

G.Lite and G.dmt Support for the Cisco 627 and Cisco 677

Configuring the CPE for DMT2
Configuring the CPE for G.dmt

Upgrading to CBOS Release 2.3.5

Upgrading from CBOS 2.2
Upgrading from CBOS 2.3 or later

Resolved Issues in CBOS Release 2.3.5
Known Issues in CBOS Release 2.3.5
Information from Previous Releases
Related Documentation
Obtaining Documentation

World Wide Web
Documentation CD-ROM
Ordering Documentation

Obtaining Technical Assistance

Cisco Connection Online
Technical Assistance Center
Documentation Feedback

Release Notes for the Cisco Broadband Operating System Release 2.3.5

May 24, 2000

These release notes describe new features, important caveats, resolved issues, and the software upgrade process for the Cisco Broadband Operating System (CBOS) Release 2.3.5. Please refer to previous release notes for specific information concerning past releases.

For more detailed information about the features in these release notes, refer to the "Related Documentation" section. Information about electronic documentation can be found in the "Obtaining Documentation" section.

Contents

These release notes provide the following information:

• Cisco Broadband Operating System
  
  
• New Features for CBOS Release 2.3.5
  
  
• Upgrading to CBOS Release 2.3.5
  
  
• Resolved Issues in CBOS Release 2.3.5
  
  
• Known Issues in CBOS Release 2.3.5
  
  
• Information from Previous Releases
  
  
• Related Documentation
  
  
• Obtaining Documentation
  
  

Cisco Broadband Operating System

CBOS is the common operating system for Cisco customer premises equipment (CPE). The CBOS is modeled after Cisco IOS software and features a similar command syntax and format. This operating system is bundled with the CPE products listed below and can also be downloaded from Cisco Connection Online.

The CBOS Release 2.3.5 supports the following Cisco CPE products:

• Cisco 627
  
  
• Cisco 633
  
  
• Cisco 673
  
  
• Cisco 675
  
  
• Cisco 675e
  
  
• Cisco 677
  
  
• Cisco 678
  
  

New Features for CBOS Release 2.3.5

G.Lite and G.dmt Support for the Cisco 627 and Cisco 677

CBOS Release 2.3.5 adds support for G.Lite and G.dmt for the Cisco 627 and Cisco 677 CPEs.

The Cisco 627 and Cisco 677 make use of new capabilities that must be configured at the service provider's location. The service provider ensures that your service user information and network connections are valid and accurate. When service orders are processed and completed, the service provider alerts customers when an upgrade is available and orders a Cisco 627 or Cisco 677 to be delivered to them.

The Cisco 627 and Cisco 677 allow you to choose transmission protocols to match your network configuration by changing the CPE's configuration file and operating system. You will use the Trivial File Transfer Protocol (TFTP) to transfer files to and from the CPE. This section describes procedures to configure the Cisco 627 and Cisco 677 for G.Lite and G.dmt protocols.

Note   You will be notified by your DSL service provider when you need to use the following procedures to configure the Cisco 627 and Cisco 677 for a different transmission protocol. Changes to your CPE must be coordinated with your DSL service provider.

Configuring the CPE for DMT2

Follow these steps:

Step 1   Verify the connection from the router to the location where the correct software image is stored. This location is provided by your service provider. Typically, you use the ping command for this step.

Step 2   Enable TFTP by entering:

Step 3   Set the remote address for the TFTP host computer by entering:

This command tells the CPE to accept TFTP transfers from a specific IP address. An example remote IP address would be 192.168.35.4. This address is an example only; do not use it to configure the router.

---

Note   If you do not have the CPE address, consult your network administrator or service provider. For more information about TFTP, see Chapter 3, "Configuration Procedures," of the Cisco 627 ADSL Modem User Guide or the Cisco 677 ADSL Router Installation and Operation Guide.

---

Step 4   To start the file transfer from a PC, start a DOS session and enter the following command:

To start the file transfer from a UNIX machine, enter the following commands:

Where necessary, implement the following values:

Substitute the filename for the software image update. See "Upgrading to CBOS Release 2.3.5" for the appropriate filenames to use.

Caution   Do not turn off the power to the router until after the file transfer is completed.

Step 5   Be sure to reboot the CPE to activate the new image. When you log back in to the CPE after the reboot, use the show version command to verify the version of the firmware that is active. Note the DMT firmware version.

Sample Output of Configuration Session for DMT2

Configuring the CPE for G.dmt

Before the CPE can be configured for G.dmt, the .full image must be loaded. See "Upgrading to CBOS Release 2.3.5" for the appropriate filenames to use. The service provider must correctly configure the central office hardware to accept a G.dmt service user.

Follow these steps:

Step 1   Enter the following command:

Step 2   Be sure to retrain the CPE to activate the new line code. When the CPE is retrained, use the show interface wan0 command to verify the G.dmt standard is active. Note that the standard configuration for the .full image is DMT2.

---

Note   Changes made to the running configuration must be written to NVRAM for changes to be seen on reboot.

---

Sample Output of Configuration Session for G.dmt

Upgrading to CBOS Release 2.3.5

The upgrade process is the same whether you use the Trivial File Transfer Protocol (TFTP) or download the new image of the CBOS software by the management port. After the new file is written to Flash memory, enter the reboot command from the CBOS command line to reset your system. The new image loads, decompresses, and programs the new image to the correct Flash memory locations.

Two files make up the CBOS Release 2.3.5. One file contains an image for upgrading systems with CBOS 2.2 release software. The second file contains an image with CRC headers and platform identifiers. These headers and identifiers validate image and configuration file transfers for supported platforms. This second file is for upgrading systems with CBOS 2.3 or subsequent releases.

Upgrading from CBOS 2.2

Table 1 lists the filenames to download for each Cisco CPE model. The .full file provides DMT2 and G.dmt line coding support. The .glite file provides G.Lite line coding support. Download the appropriate file for your platform. This file cannot be validated by the TFTP checksum feature. Use a terminal emulation application such as Hyperterminal to download the image.

To serially download the image, enter the following settings through a serial console connected to your system:

• 38.4 Kbaud
  
  
• No parity
  
  
• 8-data bits
  
  
• 1-stop bit
  
  
• No flow control
  
  

---

Note   Serial downloads at this setting take approximately 5 minutes to complete.

---

---

Caution   Downloading the image with the CRC headers onto a CBOS 2.2 system will result in a No router image present error when the CPE is rebooted. To recover, use the monitor's xmodem download procedure.

---

Enter the following:

df 10008000 es 0 es 1 es 2 es 3 es 4 es 5 pb 10008000 fee00000 <byte size reported by df command>

If upgrading a Cisco 62x, enter the following:

df 10008000 es 0 es 1 es 2 es 3 es 4 es 5 pb 10008000 fef00000 <byte size reported by df command>

---

Caution   Do not reset the system or halt its operation in any way during the upgrade process. Resetting while writing a new image to Flash memory will corrupt the Flash memory. The router will not reboot. Use the monitor's xmodem download procedure to recover.

---

Sample output

The following shows a sample output of a successful image download:

Ron960 User Interface:Build 111 (Jan 30 2000 17:25:27) NetSpeed HomeRunner(TM); i960 JX; JA step number 03 Copyright 1997 NetSpeed Corporation Copyright 1998, 1999 Cisco Systems =>es 0 Erasing sector 00000000... Sector erased =>es 1 Erasing sector 00000001... Sector erased =>es 2 Erasing sector 00000002... Sector erased =>es 3 Erasing sector 00000003... Sector erased =>es 4 Erasing sector 00000003... Sector erased =>es 5 Erasing sector 00000003... Sector erased =>df 10008000 Downloading CCCCCCCCCC -- Download complete -- Transferred 000ce000 bytes =>pb 10008000 fee00000 ce000 Programming flash address 00000000 from 10008000... Flash programmed =>rb Hello! C6xx self-update code:Release 2.3.5 NOTE:Do not power off router until update is finished! Decompressing router... Erasing FLASH...... Programming... Decompressing monitor... Erasing FLASH......... Programming... Finished. Rebooting... Hello! Expanding CBOS image... CBOS v2.3.5.012 - Release Software

Upgrading from CBOS 2.3 or later

Table 2 lists the filenames to download for each Cisco CPE model. The .full file provides DMT2 and G.dmt line coding support. The .glite file provides G.Lite line coding support. Download the appropriate file for your platform. This file is validated by the TFTP checksum feature. Use TFTP to download the image.

TFTP Download

To use TFTP to download a new software image:

---

Step 1   Log in to the Cisco equipment using the Enable password.

Step 2   Enable TFTP on the Cisco equipment:

set tftp enabled


Step 3   Determine the equipment's IP address:

show int eth0


Step 4   From the DOS window or TFTP client, use TFTP to send the image to the CPE. In a DOS window, the command is:

tftp -i ip address of CPE put filename

---

Note   Download the appropriate filename for your CPE model as listed in Table 2.

---

Step 5   Ensure that the file downloaded correctly:

show errors

You should see an "Image downloaded successfully" message.

Step 6   Reboot the CPE.

Resolved Issues in CBOS Release 2.3.5

Table 3 lists resolved issues for CBOS 2.3.5 and the affected platform.

Known Issues in CBOS Release 2.3.5

The following list describes known issues and functionality details.

• When you download a new configuration file, you must name it nscfg.xxx, where xxx can be any extension.
  
  
• The following enable level commands do not appear on the exec user help screen: show running, show running#, show nvram, and show nvram#.
  
  

Table 4 lists known issues, conditions, and workarounds for CBOS Release 2.3.5.

Information from Previous Releases

The following new features are supported by CBOS Release 2.3.0. See the Cisco Broadband Operating System 2.3.0 Release Notes for additional information.

• Port Address Translation Enhancements
  
  
• Support for Remote Shell (rsh), Remote Copy (rcp), and Remote Login (rlogin)
  
  
• Network Address Translation Enhancements
  
  
• Support for IP Precedence
  
  
• Support for TFTP Checksum
  
  
• New Default Settings
  
  
• Support for GSI 3.2 Firmware Update
  
  
• CBOS Modifications for Setting Upstream Transmit Power
  
  
• Enhancements to DHCP Pool Start Addressing
  
  
• Enhancements to WAN-LNK LED Blink Pattern
  
  
• Enhancements to the Set Filter Command
  
  

Related Documentation

Use these release notes in conjunction with these documents:

• Cisco Broadband Operating System User Guide (Cisco document number 78-5803-02)
  
  
• Cisco 627 ADSL DMT Modem User Guide (Cisco document number 78-6627-01)
  
  
• Cisco 633 SDSL Modem Installation and Operation Guide (Cisco document number 78-6624-01)
  
  
• Cisco 673 SDSL Router Installation and Operation Guide (Cisco document number 78-7254-01)
  
  
• Cisco 675 ADSL Router Installation and Operation Guide (Cisco document number 78-6866-01)
  
  
• Cisco 675e ADSL Router Installation and Operation Guide (Cisco document number 78-6872-01)
  
  
• Cisco 677 ADSL DMT Router Installation and Operation Guide (Cisco document number 78-6628-01)
  
  
• Cisco 678 ADSL Router Installation and Operation Guide (Cisco document number 78-10172-01)
  
  

Obtaining Documentation

World Wide Web

You can access the most current Cisco documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or 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. Therefore, it is probably more current than printed documentation. The CD-ROM package is available as a single unit or as an annual subscription.

Ordering Documentation

Registered CCO users can order the Documentation CD-ROM and other Cisco Product documentation through our online Subscription Services at http://www.cisco.com/cgi-bin/subcat/kaojump.cgi.

Nonregistered CCO users can order documentation through a local account representative by calling Cisco's corporate headquarters (California, USA) at 408 526-4000 or, in North America, call 800 553-NETS (6387).

Obtaining Technical Assistance

Cisco provides Cisco Connection Online (CCO) as a starting point for all technical assistance. Warranty or maintenance contract customers can use the Technical Assistance Center. All customers can submit technical feedback on Cisco documentation using the web, e-mail, a self-addressed stamped response card included in many printed docs, or by sending mail to Cisco.

Cisco Connection Online

Cisco continues to revolutionize how business is done on the Internet. Cisco Connection Online 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.

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

You can access CCO in the following ways:

• WWW: www.cisco.com
  
  
• Telnet: cco.cisco.com
  
  
• Modem using standard connection rates and the following terminal settings: VT100 emulation; 8 data bits; no parity; and 1 stop bit.
  
  
• From North America, call 408 526-8070
  
  
• From Europe, call 33 1 64 46 40 82
  
  

You can e-mail questions about using CCO to cco-team@cisco.com.

Technical Assistance Center

The Cisco Technical Assistance Center (TAC) is available to warranty or maintenance contract customers who need technical assistance with a Cisco product that is under warranty or covered by a maintenance contract.

To display the TAC web site that includes links to technical support information and software upgrades and for requesting TAC support, use www.cisco.com/techsupport.

To contact by e-mail, use one of the following:

In North America, TAC can be reached at 800 553-2447 or 408 526-7209. For other telephone numbers and TAC e-mail addresses worldwide, consult the following web site: http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml.

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
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San Jose, CA 95134-9883

We appreciate and value your comments.

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

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