Release 12.1(1)EX adds support for the first time for the Catalyst 6000 FlexWAN module, bringing direct WAN interface support to the Catalyst 6000 Family of switches. Release 12.1(1)EX runs on the Catalyst 6000 MSFC. Therefore, an MSFC is required for support of this release.
Cisco IOS 12.1(1)EX release is a short-lived Early Deployment (ED) release based on 12.1E. Cisco IOS 12.1EX releases are created when needed to make features, interfaces, and platforms available before they appear in a subsequent release. Cisco IOS 12.1EX releases do not receive regular maintenance updates, and customers should migrate to a subsequent 12.1E release to receive maintenance releases.
For information about the Cisco IOS software release process, please see Product Bulletin #537, Types of Cisco IOS Software Releases, at:
Before deploying a new software release in a production network, always consult appropriate product-specific documentation, release notes, and field notices, refer to the online defect tracking system, and perform acceptance testing in your own test environment.
Packet over Sonet (OC-3):
ATM (with traffic shaping):
T3/E3 (clear-channel and channelized):
|Functionality in Release||Is Next Available In||Is Next Available In|
Multilayer switching (MLS) is a Cisco technology which accelerates the routing of packets and reduces the load of a router by learning and establishing flow information on switch hardware and using it to switch packets at wire speed. Specifically, MLS is an interaction between a Cisco Router and a Catalyst Local Area Network (LAN) Switch that allows wire rate hardware switching at Layer 3 and Layer 4. The FlexWAN module utilizes the MLS technology to provide wire rate hardware switching of IP packets between WAN interaces and any other ports in the Catalyst 6000. In addition, all other routed protocols are supported on the FlexWAN module, however without MLS switching (packet processing is performed in the main processor without hardware assist).
For more detailed information about platforms and features delivered in Release 12.1(1)EX, please refer to the MSFC 12.1(1)EX release notes at:
|Platform||Software Feature Set||Product Code||Image||Flash||DRAM|
|Catalyst 6000 MSFC||IP||SC6MSFCC-12.1.1EX||c6msfc-isv-mz.121-1.EX.bin||16 MB||64 MB|
|Catalyst 6000 MSFC||IP/IPX||SC6MSFCD-12.1.1EX||c6msfc-dsv-mz.121-1.EX.bin||16 MB||64 MB|
|Catalyst 6000 MSFC||Desktop||SC6MSFCB-12.1.1EX||c6msfc-dsv-mz.121-1.EX.bin||16 MB||64 MB|
|Catalyst 6000 MSFC||Enterprise||SC6MSFCA-12.1.1EX||c6msfc-jsv-mz.121-1.EX.bin||16 MB||64 MB|
|Catalyst 6000 MSFC||InterDomain Routing Feature License||FR-IRC6||16 MB||64MB|
The orderable software images contain the following feature sets:
The jsv, isv, and dsv images support the FlexWAN module.
The IP feature set includes support for wire speed Layer 2 switching (bridging) and Layer 3 switching (routing). IP routing protocols supported include
RIPv1, RIPv2, OSFP, IGRP, EIGRP, EGP, BGP4, and IS-IS.
Note EGP, BGP4 and IS-IS routing protocols require the additional purchase of the InterDomain Routing Feature License (FR-IRC6).
The IP/IPX feature set adds support for wire speed IPX Layer 3 switching.
The Desktop feature set adds support for AppleTalk Phase 1/2, DECnet Phase IV, and VINES routing.
The Enterprise feature set adds support for DECnet Phase V and CLNS/OSI routing.