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October 12, 1999
This release note describes the MPLS (formerly Tag Switching) features and caveats that are supported in the Cisco IOS Release 11.1 CT, up to and including 11.1(28)CT. Release 11.1 CT is a platform-specific software release that supports the MPLS feature for the
Use these release notes in conjunction with the Release Notes for Cisco IOS Release 11.1, Release Notes for Cisco 7000 Family for Cisco IOS Release 11.1 CA and Release Notes for Cisco 7000 Family for Cisco IOS Release 11.1 CC. All features supported in Release 11.1, Release 11.1 CA, and Release 11.1 CC are supported in Release 11.1 CT. In addition to the caveats listed in the "Caveats" section, the software caveats that apply to Release 11.1, Release 11.1 CA, and Release 11.1 CC also apply to Release 11.1 CT.
These release notes discuss the following:
Release 11.1(17)CT is the first release of this feature-specific Cisco IOS software.
Release 11.1(28)CT or later is available on Cisco Connection Online (CCO) only and cannot be ordered through manufacturing. CCO is Cisco Systems' primary, real-time support channel. Maintenance customers and partners can self-register on CCO to obtain additional information and services. For more information on Release 11.1 CT, refer to the "Release 11.1 CT Migration Guide" design implementation guide, "Cisco IOS Software Release 11.1 CT New Features product bulletin #757, and "Cisco IOS Software Release 11.1 CT Ordering Procedures and Platform Hardware Support" product bulletin #756 located on CCO.
Cisco Systems provides several software releases based on a single version of Cisco IOS software. Release 11.1 is a major release and Release 11.1(17) is maintenance release. Maintenance releases of the major software deliver fixes to software defects only, thus providing the most stable software for your network, for the features you need. In addition to the major software release, there are several Early Deployment (ED) releases. One ED release, Release 11.1 CT, delivers fixes for software defects and support for the new features for the Cisco 7000 family. 11.1 CT is an ED release, based on Release 11.1 CC, which provides the MPLS feature in addition to the 11.1 CC feature set.
Detailed software configuration information on the new MPLS feature and Cisco IOS commands supported by Release 11.1 CT is available on a Documentation CD-ROM and on the Web at http://www.cisco.com. For more information, refer to the "Related Documentation" section later in this document.
This document will be updated as additional releases of Release 11.1 CT are made available to support new hardware and software features.
This section describes the system requirements for the Cisco IOS Release 11.1 CT software and includes the following sections:
Table 1 describes the memory requirements for the feature sets for the Cisco 7000 family of routers supported by Cisco IOS Release 11.1 CT. The following list contains additional important information for Release 11.1 CT:
| Feature Set by Router | Image Name | Required Flash Memory | Required DRAM Memory1 | Release 11.1 CC Runs From |
|---|---|---|---|---|
| Cisco 7200 Series |
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|
|
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Enterprise | c7200-j-mz and | 16 MB | 32 MB | RAM |
| Cisco 7500 Series and Cisco 7000 Series with RSP7000 and RSP7000CI |
| |||
Enterprise/VIP | rsp-jv-mz and | 16 MB | 32 MB | RAM |
Enterprise | rsp-j-mz and | 16 MB | 32 MB | RAM |
| 1If you use a Cisco 7200/7500 router as a Label Switch Controller (LSC), you need a minimum of 64 MB DRAM. |
Cisco IOS Release 11.1 CT supports the following platforms:
Table 2 lists the interfaces supporting MPLS on the Cisco 7000 family of routers.
Table 3 lists the port adapters supporting MPLS on the Cisco 7000 family of routers.
In each table, "Yes" means that a particular interface or port adapter is supported. "No" means that it is not.
All port adapters and interfaces supported in Release 11.1 CA and Release 11.1 CC are supported in Release 11.1 CT. For a complete list of the LAN interfaces and WAN data rates and interfaces supported on the Cisco 7000 family of routers, refer to the Release Notes for Cisco 7000 Family for Cisco IOS Release 11.1 CC.
| Interface | Cisco 7200 Series | Cisco 7500 Series and Cisco 7000 Series with RSP7000 |
|---|---|---|
ATM Interface Processor (AIP) | N/A | Yes |
Ethernet Interface Processor (EIP) | N/A | Yes |
Fast Ethernet Interface Processor (FEIP) | N/A | Yes |
HSSI Interface Processor (HIP) | N/A | Yes |
Packet OC-3 Interface Processor (POSIP) | N/A | Yes |
| Port Adapter | Cisco 7200 Series | Cisco 7500 Series and Cisco 7000 Series with RSP7000 |
|---|---|---|
ATM Port Adapter (PA-A1) | Yes | Yes |
Enhanced 4-Port Synchronous Serial Port Adapter (PA-4T+) | Yes | Yes |
Fast Ethernet Port Adapter (PA-FE) | Yes | Yes |
Four-Port Ethernet Port Adapter (4EPA) | Yes | Yes |
One-Port High-Speed Serial Interface (HSSI) Port Adapter (PA-H) | Yes | Yes |
Synchronous Serial EIA/TIA-232 Port Adapter (PA-8T-232) | Yes | Yes |
Synchronous Serial V.35 Port Adapter (PA-8T-V35) | Yes | Yes |
Synchronous Serial X.21 Port Adapter (PA-8T-x21) | Yes | Yes |
Two-Port HSSI Adapter (PA-2H) | Yes | Yes |
To determine the version of Cisco IOS software currently running on your router, log on to the Cisco router and enter the show version EXEC command:
Router> show version
An output appears similar to the following. The Cisco IOS version is in the second line.
Cisco Internetwork Operating System Software IOS (tm) 7200 Software (C7200-J-M), Version 11.1(28)CT...
The output includes additional information such as processor revision numbers, memory amounts, hardware IDs, and partition information. To upgrade to a new software release, see the
Cisco Connection Online section.
The following feature sets are available in Release 11.1 CT for the Cisco 7000 series routers with RSP7000 and RSP7000CI, Cisco 7200 series routers, and Cisco 7500 series routers. All features supported in Release 11.1 and Release 11.1 CA, and Release 11.1 CC are supported in
Release 11.1 CT.
For information on these features, refer to Release Notes for Cisco IOS Release 11.1 and Release Notes for Cisco 7000 Family for Cisco IOS Release 11.1 CA, and Release Notes for Cisco 7000 Family for Cisco IOS Release 11.1 CC.
Cisco 7500 series routers and Cisco 7000 series routers with RSP7000 and RSP7000CI:
The Cisco 7200 series routers:
For Cisco 7500 series and Cisco 7000 series with RSP700 platforms, microcode software images are bundled with the Release 11.1 system software images (features sets). The only exception is the Channel Interface Processor (CIP) microcode, which is unbundled in all system software images.
All microcode, except CIP microcode, is bundled with each Release 11.1 CT software image that runs on Cisco 7500 series and Cisco 7000 series with RSP700 platforms. Bundling eliminates the need to store separate microcode images. When the router starts, the system software unpacks the microcode software bundle and loads the proper software onto all interface processor boards.
For a list of microcode versions, refer to the Release Notes for Cisco 7000 Family for Cisco IOS Release 11.1 CC publication.
The following sections list the new MPLS features that are available in Cisco IOS
Release 11.1 CT. New hardware features are described in detail in the documentation that accompanies the hardware. Also, new hardware and new software features are described in feature modules that are available online only. Each feature module contains a brief description of the feature and new or modified Cisco IOS commands supported by the feature. For easy online access, these features are linked to the applicable Cisco IOS feature module (if one exists). Click on the link to open the feature module.
There are no new features in this release.
There are no new features in this release.
There are no new features in this release.
There are no new features in this release.
There are no new features in this release.
There are no new features in this release.
There are no new features in this release.
There are no new features in this release.
There are no new features in this release.
There are no new features in this release.
There are no new features in this release.
In addition to the features in Release 11.1 CA and Release 11.1 CC, Release 11.1(19)CT supports the following new feature:
Label Switch Controller---The Label Switch Controller (LSC) with Cisco's BPX 8620 wide area switch and BPX 8650 IP+ATM switch delivers scalable integration of IP services over an ATM network. The LSC enables the BPX 8620 and 8650 to participate in an MPLS network, to be a direct peer with IP edge routers, and support the full suite of IP features available in Cisco IOS.
MPLS's highly scalable IP+ATM integration is created by the LSC using a direct peer relationship between the BPX 8620 or 8650 and IP edge routers. This removes the limit placed on the number of IP edge routers, seen in traditional IP over ATM networks, thus allowing service providers to keep pace with the growing demand for IP services. The LSC additionally supports the easy, quick, and direct implementation of advanced IP services over an ATM network of BPX 8620s and 8650s.
There are no new features in this release.
In addition to the features in Release 11.1 CA and Release 11.1 CC, Release 11.1(17)CT supports the following new feature:
MPLS---MPLS is a novel approach to network layer packet forwarding. The two main components of the MPLS architecture are forwarding and control. Forwarding is accomplished using simple label-swapping techniques. Control results form the use of the existing network layer routing protocols plus mechanisms for binding and distributing tags. MPLS retains the scaling properties of IP and can help improve the scalability of IP networks.
This section contains important information about the Cisco IOS Release 11.1 CT software.
For a list of the caveats that apply to Release 11.1, Release 11.1 CA, and Release 11.1 CC, refer to the following publications:
The caveats that apply to Cisco IOS Release 11.1, Release 11.1 CA, and Release 11.1 CC apply to Release 11.1 CT.
Only serious caveats with release note attachments are described in these release notes. The complete caveats against Release 11.1 are available in the Cisco Documentation CD-ROM package. In the CD-ROM package, access the Cisco IOS 11.1 caveats in the Cisco IOS Release 11.1 database. If you have an account on Cisco Connection Online (CCO), you can view additional caveats using the bug search tools in the Bug Toolkit, such as the Bug Navigator.
This section describes unexpected behavior possible with Release 11.1(28)CT. Unless otherwise noted, these caveats apply to all 11.1(17) releases up to and including 11.1(28)CT
Router#write mem Building configuration... % Slave config write error (0) % Slave config is not opened [Ok]
There are no new caveats in this release.
This section describes unexpected behavior possible with Release 11.1(26)CT. Unless otherwise noted, these caveats apply to all 11.1(17) releases up to and including 11.1(26)CT.
This section describes unexpected behavior possible with Release 11.1(25)CT1. Unless otherwise noted, this caveat applies to all 11.1(17) releases up to and including 11.1(25)CT1.
%UTIL-3-TREE: Data structure error--attempt to remove an unthreaded node from a tree
This section describes unexpected behavior possible with Release 11.1(25)CT. Unless otherwise noted, this caveat applies to all 11.1(17) releases up to and including 11.1(25)CT.
This section describes unexpected behavior possible with Release 11.1(24)CT. Unless otherwise noted, this caveat applies to all 11.1(17) releases up to and including 11.1(24)CT.
tag-switching ip default-routeThere are no new caveats in this release.
There are no new caveats in this release.
There are no new caveats in this release.
This section describes unexpected behavior possible with Release 11.1(20)CT. Unless otherwise noted, these caveats apply to all 11.1(17) releases up to and including 11.1(20)CT.
This section describes unexpected behavior possible with Release 11.1(19)CT. Unless otherwise noted, these caveats apply to all 11.1 releases up to and including 11.1(19)CT. For additional caveats applicable to Release 11.1(19)CT, see the caveats sections for newer 11.1CT releases. The caveats for newer releases precede this section.
All the caveats listed in this section are resolved in release 11.1(20)CT.
There are no new caveats for this release.
This section describes unexpected behavior possible with Release 11.1(17)CT.
All the caveats listed in this section are resolved in Release 11.1(18)CT.
The Cisco IOS software documentation for the new MPLS feature in Release 11.1 CT is available online only. New features for Release 11.1 CT are documented in the section New and Changed Information, which include a brief description of the feature, configuration tasks, and new and changed Cisco IOS commands supported by the feature. This information supplements the Cisco IOS Release 11.1 configuration guide and command reference publications.
Cisco IOS Release 11.1 documents and Release 11.1 CC feature documents can be found on the Documentation CD-ROM and on CCO.
On the Documentation CD, the paths are
On Cisco Connection Online (CCO), at http://www.cisco.com/, the paths are:
For more information, refer to the "Documentation CD-ROM" and "Service and Support" sections later in this document.
In addition to the software documentation, hardware features also have an installation and configuration note that accompanies the hardware.
For service and support for a product purchased directly from Cisco, use CCO.
For service and support for a product purchased from a reseller, contact the reseller. Resellers offer a wide variety of Cisco service and support programs, which are described in the section "Service and Support" in the information packet shipped with your product.
The following URL contains links that you can use to access helpful tips for configuring your Cisco products:
http://www.cisco.com/kobayashi/serv_tips.shtml
This URL is subject to change without notice. If it changes, point your web browser to http://www.cisco.com/, and follow this path: Software & Support, Technical Tips (button on left margin).
"Hot Tips" are popular tips and hints gathered from the Cisco Technical Assistance Center (TAC). Most of these documents are available from the TAC FAX-on-demand service. To access FAX-on-demand and receive documents at your FAX machine from the USA, call 888-50-CISCO (888-502-4726). From other areas, call 415-596-4408.
The following sections are provided from the Technical Tips page:
Cisco Connection Online (CCO) is Cisco Systems' primary, real-time support channel. Maintenance customers and partners can self-register on CCO to obtain additional information and services.
Available 24 hours a day, 7 days a week, CCO provides a wealth of standard and value-added services to Cisco's customers and business partners. CCO services include product information, product documentation, software updates, release notes, technical tips, the Bug Navigator, configuration notes, brochures, descriptions of service offerings, and download access to public and authorized files.
CCO serves a wide variety of users through two interfaces that are updated and enhanced simultaneously: a character-based version and a multimedia version that resides on the World Wide Web (WWW). The character-based CCO supports Zmodem, Kermit, Xmodem, FTP, and Internet e-mail, and it is excellent for quick access to information over lower bandwidths. The WWW version of CCO provides richly formatted documents with photographs, figures, graphics, and video, as well as hyperlinks to related information.
You can access CCO in the following ways:
For a copy of CCO's Frequently Asked Questions (FAQ), contact cco-help@cisco.com. For additional information, contact cco-team@cisco.com.
Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM, a member of the Cisco Connection Family, is updated monthly. Therefore, it might be more current than printed documentation. To order additional copies of the Documentation CD-ROM, contact your local sales representative or call customer service. The CD-ROM package is available as a single package or as an annual subscription. You can also access Cisco documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com.
If you are reading Cisco product documentation on the World Wide Web, you can submit comments electronically. Click Feedback in the toolbar and select Documentation. After you complete the form, click Submit to send it to Cisco. We appreciate your comments.
Posted: Tue Oct 12 14:45:47 PDT 1999
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