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September 5, 2000
Text Part Number 78-10724-04
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Note You can find the most current Cisco IOS documentation on Cisco Connection Online (CCO). These electronic documents may contain updates and modifications made after the hard-copy documents were printed. |
These release notes support Cisco IOS Release 12.1. These release notes are updated to describe new memory requirements, hardware support, software platform deferrals, and changes to the microcode or modem code and related documents.
For a list of the software caveats that apply to Release 12.1, see Caveats for Cisco IOS Release 12.1 that accompanies these release notes. The caveats document is updated for every maintenance release and is located on Cisco Connection Online (CCO) and the Documentation CD-ROM.
These release notes contain the following sections:
This section describes the system requirements for Release 12.1 and includes the following sections:
The Cisco IOS software is packaged in feature sets (also called software images) depending on the platform. Each feature set contains a specific set of new Cisco IOS Release 12.1 features. Table 1 lists the Cisco IOS software feature set matrix and associated image names available in Cisco IOS Release 12.1.
| Feature Set | Software Image | Platform/Model |
|---|---|---|
Base IP Bridging | ubr920-kl-mz | Cisco uBR920 |
Base IP Bridging Voice | ubr920-klv4-mz | Cisco uBR920 |
Desktop | c5rsfc-d-mz | Cisco Catalyst 5000 RSFC |
| c5200-d-l | Cisco AS5200 |
| c5300-d-mz | Cisco AS5300 |
Desktop Plus | c5200-ds-l | Cisco AS5200 |
| c5300-ds-mz | Cisco AS5300 |
Desktop/FW/IDS | c5rsm-do3sv-mz | Cisco Catalyst 5000 RSM |
Desktop/FW/IDS/IPSec 56 | c5rsm-do3sv56i-mz | Cisco Catalyst 5000 RSM |
Desktop/IBM | c5rsm-dsv-mz | Cisco Catalyst 5000 RSM |
| c7200-ds-mz | Cisco 7200 |
| rsp-dsv-mz | Cisco 7500 RSP |
Desktop/IBM IPSec 56 | c5rsm-dsv56i-mz | Cisco Catalyst 5000 RSM |
| c7200-ds56i-mz | Cisco 7200 |
| rsp-dsv56i-mz | Cisco 7500 RSP |
Desktop/IBM/FW/IDS | c7200-do3s-mz | Cisco 7200 |
Desktop/IBM/FW/IDS IPSec 56 | c7200-do3s56i-mz | Cisco 7200 |
Desktop/IBM/FW/IDS IPSec 3DES | c7200-dk2o3s-mz | Cisco 7200 |
Distributed Director | c2500-w3-l | Cisco 2500 |
DOCSIS Two-Way IP Plus with BPI | ubr7200-ikls-mz | Cisco uBR7200 |
DOCSIS Two-Way IP Plus Telco-Return with BPI | ubr7200-iklst-mz | Cisco uBR7200 |
DOCSIS Two-Way IP Plus | ubr7200-is-mz | Cisco uBR7200 |
DOCSIS Two-Way IP Plus Telco-Return | ubr7200-ist-mz | Cisco uBR7200 |
DOCSIS Two-Way with BPI | ubr7200-klp-mz | Cisco uBR7200 |
DOCSIS Two-Way | ubr7200-p-mz | Cisco uBR7200 |
Enterprise | c5rsm-jsv-mz | Cisco Catalyst 5000 RSM |
| c5rsfc-js-mz | Cisco Catalyst 5000 RSFC |
| c5300-j-mz | Cisco AS5300 |
| c7200-js-mz | Cisco 7200 |
| rsp-jsv-mz | Cisco 7500 RSP |
Enterprise IPSec 56 | c5rsm-jsv56i-mz | Cisco Catalyst 5000 RSM |
| c7100-js56i-mz | Cisco 7100 |
| c7200-js56i-mz | Cisco 7200 |
| rsp-jsv56i-mz | Cisco 7500 RSP |
Enterprise IPSec 3DES | c5rsm-jk2sv-mz | Cisco Catalyst 5000 RSM |
| c7100-jk2s-mz | Cisco 7100 |
| c7200-jk2s-mz | Cisco 7200 |
| rsp-jk2sv-mz | Cisco 7500 RSP |
Enterprise Plus | c2500-js-l | Cisco 2500 |
| c2600-js-mz | Cisco 2600 |
| c3620-js-mz | Cisco 3620 |
| c3640-js-mz | Cisco 3640 |
| c3660-js-mz | Cisco 3660 |
| mc3810-js-mz | Cisco MC3810 |
| c4000-js-mz | Cisco 4000/4000-M |
| c4500-js-mz | Cisco 4500/4500-M/4700/4700-M |
| c5300-js-mz | Cisco AS5300 |
| c7100-js-mz | Cisco 7100 |
| rpm-js-mz | Cisco MGX 8850 Route Processor Module |
Enterprise Plus ATM MCM H.323 | mc3810-a2jsx-mz | Cisco MC3810 |
Enterprise Plus IPSec 56 | c2500-js56i-l | Cisco 2500 |
| c2600-js56i-mz | Cisco 2600 |
| c3620-js56i-mz | Cisco 3620 |
| c3640-js56i-mz | Cisco 3640 |
| c3660-js56i-mz | Cisco 3660 |
| c4000-js56i-mz | Cisco 4000/4000-M |
| c4500-js56i-mz | Cisco 4500/4500-M/4700/4700-M |
| c5300-js56i-mz | Cisco AS5300 |
Enterprise Plus IPSec 3DES | c2600-jk2s-mz | Cisco 2600 |
| c3620-jk2s-mz | Cisco 3620 |
| c3640-jk2s-mz | Cisco 3640 |
| c3660-jk2s-mz | Cisco 3660 |
| c4000-jk2s-mz | Cisco 4000/4000-M |
| c4500-jk2s-mz | Cisco 4500/4500-M/4700/4700-M |
| c5300-jk2s-mz | Cisco AS5300 |
Enterprise/ATM Plus | mc3810-a2js-mz | Cisco MC3810 |
Enterprise/FW Plus IPSec 56 | c2500-jos56i-l | Cisco 2500 |
Enterprise/FW/IDS | c5rsm-jo3sv-mz | Cisco Catalyst 5000 RSM |
| c7100-jo3s-mz | Cisco 7100 |
| c7200-jo3s-mz | Cisco 7200 |
Enterprise/FW/IDS IPSec 56 | c5rsm-jo3sv56i-mz | Cisco Catalyst 5000 RSM |
| c7100-jo3s56i-mz | Cisco 7100 |
| c7200-jo3s56i-mz | Cisco 7200 |
Enterprise/FW/IDS IPSec 3DES | c5rsm-jk2o3sv-mz | Cisco Catalyst 5000 RSM |
| c7100-jk2o3s-mz | Cisco 7100 |
| c7200-jk2o3s-mz | Cisco 7200 |
Enterprise/FW/IDS Plus IPSec 56 | c2600-jo3s56i-mz | Cisco 2600 |
| c3620-jo3s56i-mz | Cisco 3620 |
| c3640-jo3s56i-mz | Cisco 3640 |
| c3660-jo3s56i-mz | Cisco 3660 |
Enterprise/FW/IDS Plus IPSec 3DES | c2600-jk2o3s-mz | Cisco 2600 |
| c3620-jk2o3s-mz | Cisco 3620 |
| c3640-jk2o3s-mz | Cisco 3640 |
| c3660-jk2o3s-mz | Cisco 3660 |
Enterprise/SNASw | c5rsm-a3jsv-mz | Cisco Catalyst 5000 RSM |
| rsp-a3jsv-mz | Cisco 7500 RSP |
Enterprise/SNASw IPSec 56 | c5rsm-a3jsv56i-mz | Cisco Catalyst 5000 RSM |
| rsp-a3jsv56i-mz | Cisco 7500 RSP |
Enterprise/SNASw IPSec 3DES | c5rsm-a3jk2sv-mz | Cisco Catalyst 5000 RSM |
| rsp-a3jk2sv-mz | Cisco 7500 RSP |
Enterprise/SNASw Plus | c2600-a3js-mz | Cisco 2600 |
| c3620-a3js-mz | Cisco 3620 |
| c3640-a3js-mz | Cisco 3640 |
| c3660-a3js-mz | Cisco 3660 |
| c4000-a3js-mz | Cisco 4000/4000-M |
| c4500-a3js-mz | Cisco 4500/4500-M/4700/4700-M |
| c7200-a3js-mz | Cisco 7200 |
Enterprise/SNASw Plus IPSec 56 | c2600-a3js56i-mz | Cisco 2600 |
| c3620-a3js56i-mz | Cisco 3620 |
| c3640-a3js56i-mz | Cisco 3640 |
| c3660-a3js56i-mz | Cisco 3660 |
| c4000-a3js56i-mz | Cisco 4000/4000-M |
| c4500-a3js-56i-mz | Cisco 4500/4500-M/4700/4700-M |
| c7200-a3js56i-mz | Cisco 7200 |
Enterprise/SNASw Plus IPSec 3DES | c2600-a3jk2s-mz | Cisco 2600 |
| c3620-a3jk2s-mz | Cisco 3620 |
| c3640-a3jk2s-mz | Cisco 3640 |
| c3660-a3jk2s-mz | Cisco 3660 |
| c4000-a3jk2s-mz | Cisco 4000/4000-M |
| c4500-a3jk2s-mz | Cisco 4500/4500-M/4700/4700-M |
| c7200-a3jk2s-mz | Cisco 7200 |
Frame Relay Access Drive (FRAD) | c2500-f-l | Cisco 2500 |
Small Office | ubr900-kly5-mz | Cisco uBR900 |
| ubr920-kly5-mz | Cisco uBR920 |
Small Office Voice | ubr920-klv4y5-mz | Cisco uBR920 |
IP | c800-y6-mw | Cisco 801-804 |
| c805-y6-mw | Cisco 805 |
| c1000-y-mz | Cisco 1003/1004 |
| c1005-y-mz | Cisco 1005 |
| c1600-y-l | Cisco 1600-1604 |
| c1600-y-mz | Cisco 1601-R - 1605-R |
| c1700-y-mz | Cisco 1700 |
| c2500-i-l | Cisco 2500 |
| c2600-i-mz | Cisco 2600 |
| c3620-i-mz | Cisco 3620 |
| c3640-i-mz | Cisco 3640 |
| c3660-i-mz | Cisco 3660 |
| mc3810-i-mz | Cisco MC3810 |
| c4000-i-mz | Cisco 4000/4000-M |
| c4500-i-mz | Cisco 4500/4500-M |
| c5rsm-isv-mz | Cisco Catalyst 5000 RSM |
| c5rsfc-i-mz | Cisco Catalyst 5000 RSFC |
| c5200-i-l | Cisco AS52000 |
| c5300-i-mz | Cisco AS5300 |
| c7100-is-mz | Cisco 7100 |
| c7200-is-mz | Cisco 7200 |
| regen-i6-mz | Cisco Optical Regenerator |
| rsp-isv-mz | Cisco 7500 RSP |
IP IPSec 56 | c5rsm-isv56i-mz | Cisco Catalyst 5000 RSM |
| c7100-is56i-mz | Cisco 7100 |
| c7200-is56i-mz | Cisco 7200 |
| rsp-isv56i-mz | Cisco 7500 RSP |
IP IPSec 3DES | c5rsm-ik2sv-mz | Cisco Catalyst 5000 RSM |
| c7100-ik2s-mz | Cisco 7100 |
| c7200-ik2s-mz | Cisco 7200 |
| rsp-ik2sv-mz | Cisco 7500 |
IP Plus | c800-sy6-mw | Cisco 801-804 |
| c805-sy6-mw | Cisco 805 |
| c1600-sy-l | Cisco 1600-1604 |
| c1600-sy-mz | Cisco 1601-R - 1605-R |
| c1700-sy-mz | Cisco 1700 |
| c2500-is-l | Cisco 2500 |
| c2600-is-mz | Cisco 2600 |
| c3620-is-mz | Cisco 3620 |
| c3640-is-mz | Cisco 3640 |
| c3660-is-mz | Cisco 3660 |
| mc3810-is-mz | Cisco MC3810 |
| c4000-is-mz | Cisco 4000/4000-M |
| c4500-is-mz | Cisco 4500/4500-M/4700/4700-M |
| c5200-is-l | Cisco AS5200 |
| c5300-is-mz | Cisco AS5300 |
| c5800-p4-mz | Cisco AS5800 |
IP Plus Dial Shelf: Cisco 5814 | dsc-c5800-mz | Cisco AS5800/Cisco 5814 Dial Shelf |
IP Plus IPSec 56 | c1600-sy56i-l | Cisco 1600-1604 |
| c1600-sy56i-mz | Cisco 1601-R - 1605-R |
| c1700-sy56i-mz | Cisco 1700 |
| c2500-is56i-l | Cisco 2500 |
| c2600-is56i-mz | Cisco 2600 |
| c3620-is56i-mz | Cisco 3620 |
| c3640-is56i-mz | Cisco 3640 |
| c3660-is56i-mz | Cisco 3660 |
| c4000-is56i-mz | Cisco 4000/4000-M |
| c4500-is56i-mz | Cisco 4500/4500-M/4700/4700-M |
| c5300-is56i-mz | Cisco AS5300 |
IP Plus IPSec 3DES | c1700-k2sy-mz | Cisco 1700 |
| c2600-ik2s-mz | Cisco 2600 |
| c3620-ik2s-mz | Cisco 3620 |
| c3640-ik2s-mz | Cisco 3640 |
| c3660-ik2s-mz | Cisco 3660 |
| c4000-ik2s-mz | Cisco 4000/4000-M |
| c4500-ik2s-mz | Cisco 4500/4500-M/4700/4700-M |
| c5300-ik2s-mz | Cisco AS5300 |
IP Plus ATM MCM H.323 | mc3810-a2isx-mz | Cisco MC3810 |
IP/FW/IDS IPSec 56 | c5rsm-io3sv56i-mz | Cisco Catalyst 5000 RSM |
IP/ATM Plus | mc3810-a2is-mz | Cisco MC3810 |
IP/FW | c800-oy6-mw | Cisco 801-804 |
| c805-oy6-mw | Cisco 805 |
| c1600-oy-l | Cisco 1600-1604 |
| c1600-oy-mz | Cisco 1601-R - 1605-R |
| c2500-io-l | Cisco 2500 |
IP/FW IPSec 3DES | c7100-ik2o3s-mz | Cisco 7100 |
IP/FW Plus | c800-osy6-mw | Cisco 801-804 |
| c805-osy6-mw | Cisco 805 |
IP/FW Plus IPSec 56 | c800-osy656i-mw | Cisco 801-804 |
| c805-osy656i-mw | Cisco 805 |
| c1400-osy56i-mz | Cisco 1400 |
| c1600-osy56i-l | Cisco 1600-1604 |
| c1600-osy56i-mz | Cisco 1601-R - 1605-R |
| c2500-ios56i-l | Cisco 2500 |
IP/FW/IDS | c1700-o3y-mz | Cisco 1700 |
| c2600-io3-mz | Cisco 2600 |
| c3620-io3-mz | Cisco 3620 |
| c3640-io3-mz | Cisco 3640 |
| c3660-io3-mz | Cisco 3660 |
| c5rsm-io3sv-mz | Cisco Catalyst 5000 RSM |
| c7100-io3s-mz | Cisco 7100 |
| c7200-io3s-mz | Cisco 7200 |
IP/FW/IDS IPSec 3DES | c5rsm-ik2o3sv-mz | Cisco Catalyst 5000 RSM |
| c7200-ik2o3s-mz | Cisco 7200 |
IP/FW/IDS/IPSec 56 | c7100-io3s56i-mz | Cisco 7100 |
| c7200-io3s56i-mz | Cisco 7200 |
IP/FW/IDS Plus IPSec 56 | c1700-o3sy56i-mz | Cisco 1700 |
| c2600-io3s56i-mz | Cisco 2600 |
| c3620-io3s56i-mz | Cisco 3620 |
| c3640-io3s56i-mz | Cisco 3640 |
| c3660-io3s56i-mz | Cisco 3660 |
IP/FW/IDS Plus IPSec 3DES | c1700-k2o3sy-mz | Cisco 1700 |
| c2600-ik2o3s-mz | Cisco 2600 |
| c3620-ik2o3s-mz | Cisco 3620 |
| c3640-ik2o3s-mz | Cisco 3640 |
| c3660-ik2o3s-mz | Cisco 3660 |
IP/H.323 | c2500-ix-l | Cisco 2500 |
| c2600-ix-mz | Cisco 2600 |
| c3620-ix-mz | Cisco 3620 |
| c3640-ix-mz | Cisco 3640 |
| c3660-ix-mz | Cisco 3660 |
IP/IBM/SNASw | c2500-a3i3r4-l | Cisco 2500 |
IP IPSec 3DES | c5rsm-ik2sv-mz | Cisco Catalyst 5000 RSM |
IP/IPX | c1400-ny-mz | Cisco 1400 |
| c1600-ny-l | Cisco 1600-1604 |
| c1600-ny-mz | Cisco 1601-R - 1605-R |
| c1700-ny-mz | Cisco 1700 |
IP/IPX/AT/DEC | c2500-d-l | Cisco 2500 |
| c2600-d-mz | Cisco 2600 |
| c3620-d-mz | Cisco 3620 |
| c3640-d-mz | Cisco 3640 |
| c3660-d-mz | Cisco 3660 |
| c4000-d-mz | Cisco 4000/4000-M |
| c4500-d-mz | Cisco 4500/4500-M/4700/4700-M |
IP/IPX/AT/DEC Plus | c2500-ds-l | Cisco 2500 |
| c2600-ds-mz | Cisco 2600 |
| c3620-ds-mz | Cisco 3620 |
| c3640-ds-mz | Cisco 3640 |
| c3660-ds-mz | Cisco 3660 |
| c4000-ds-mz | Cisco 4000/4000-M |
| c4500-ds-mz | Cisco 4500/4500-M/4700/4700-M |
IP/IPX/AT/DEC/FW Plus | c2500-dos-1 | Cisco 2500 |
IP/IPX/AT/DEC/FW/IDS Plus | c2600-do3s-mz | Cisco 2600 |
| c3620-do3s-mz | Cisco 3620 |
| c3640-do3s-mz | Cisco 3640 |
| c3660-do3s-mz | Cisco 3660 |
IP/IPX/AT/FW/IDS Plus IPSec 56 | c1700-bno3r2sy56i-mz | Cisco 1700 |
IP/IPX/AT/IBM | c1600-bnr2y-l | Cisco 1600-1604 |
| c1600-bnr2y-mz | Cisco 1601-R - 1605-R |
| c1700-bnr2y-mz | Cisco 1700 |
IP/IPX/AT/IBM Plus | c1600-bnr2sy-l | Cisco 1600-1604 |
| c1600-bnr2sy-mz | Cisco 1601-R - Cisco 1605-R |
| c1700-bnr2sy-mz | Cisco 1700 |
IP/IPX/AT/IBM/FW Plus IPSec 56 | c1600-bnor2sy56i-l | Cisco 1600-1604 |
| c1600-bnor2sy56i-mz | Cisco 1601-R - 1605-R |
IP/IPX/AT/IBM/FW/IDS Plus IPSec 3DES | c1700-bk2no3r2sy-mz | Cisco 1700 |
IP/IPX/FW Plus | c1400-nosy-mz | Cisco 1400 |
| c1600-nosy-l | Cisco 1600-1604 |
| c1600-nosy-mz | Cisco 1601-R - 1605-R |
IP/IPX/FW Plus IPSec 56 | c800-nosy656i-mw | Cisco 801-804 |
| c805-nosy656i-mw | Cisco 805 |
IP/IPX/FW/IDS Plus | c1700-no3sy-mz | Cisco 1700 |
IP/IPX Plus | c800-nsy6-mw | Cisco 801-804 |
| c805-nsy6-mw | Cisco 805 |
| c1400-nsy-mz | Cisco 1400 |
IP/Voice Plus | c1700-sv3y-mz | Cisco 1750 |
IP/Voice Plus 40 | c1700-sv3y40-mz | Cisco 1750 |
IP/Voice Plus 56 | c1700-sv3y56-mz | Cisco 1750 |
IP/Voice Plus IPSEC 56 | c1700-sv3y56i-mz | Cisco 1750 |
IP/Voice Plus IPSEC 3DES | c1700-k2sv3y-mz | Cisco 1750 |
IP/FW/IDS/Voice Plus | c1700-o3sv3y-mz | Cisco 1750 |
IP/FW/IDS/Voice Plus IPSEC 56 | c1700-o3sv3y56i-mz | Cisco 1750 |
IP/FW/IDS/Voice Plus 3DES | c1700-k2o3sv3y-mz | Cisco 1750 |
IP/IPX/FW/IDS/Voice Plus | c1700-no3sv3y-mz | Cisco 1750 |
IP/IPX/AT/IBM/FW/IDS/Voice Plus | c1700-bno3r2sv3y56i-mz | Cisco 1750 |
IP/IPX/AT/IBM/FW/IDS/Voice Plus 3DES | c1700-bk2no3r2sv3y-mz | Cisco 1750 |
ISDN | c2500-g-l | Cisco 2500 |
LAN FRAD | c2500-fin-l | Cisco 2500 |
LAN FRAD/OSPF | c2500-f2in-l | Cisco 2500 |
Network Layer 3 Switching | c7200-inu-mz | Cisco 7200 |
Remote Access Server (RAS) | c2500-c-l | Cisco 2500 |
| c2600-c-mz | Cisco 2600 |
Service Provider | c3660-p-mz | Cisco 3660 |
Service Provider IPSec 56 | c5800-p456i-mz | Cisco AS5800 |
Service Provider with PT/TARP | c2500-p7-l | Cisco 2500 |
Small Office/FW | ubr900-kloy5-mz | Cisco uBR900 |
Small Office/FW/IDS | ubr920-klo3y5-mz | Cisco uBR920 |
Small Office+/ FW/IPSec 56 | ubr900-kloy556i-mz | Cisco uBR900 |
| ubr920-klsy556i-mz | Cisco uBR920 |
Small Office+/FW/IDS/IPSec 56 | ubr920-klo3sy556i-mz | Cisco uBR920 |
Small Office/Voice/FW/IDS | ubr920-klo34y5-mz | Cisco uBR920 |
Small Office+/Voice/FW/IDS/ | ubr920-klo3sv4y556i-mz | Cisco uBR920 |
Small Office+/FW/IDS/IPSec 3DES | ubr920-klk2o3sv4y5-mz | Cisco uBR920 |
Telco | c3660-telco-mz | Cisco 3660 |
Telco Plus | c3660-telcoent-mz | Cisco 3660 |
Telecommuter IPSec 56 | ubr900-kly556i-mz | Cisco uBR900 |
Telecommuter+/IPSec 3DES | ubr920-klk2sy5-mz | Cisco uBR920 |
Telecommuter/Voice/IPSec 56 | ubr920-klsv4y556i-mz | Cisco uBR920 |
Telecommuter+/Voice/IPSec 3DES | ubr920-klk2sv4y5-mz | Cisco uBR920 |
Cisco IOS Release 12.1 supports the following Cisco hardware platforms:
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For detailed descriptions of the new hardware features, see "New and Changed Information,".
To determine the version of Cisco IOS software currently running on your Cisco network device, log in to the device and enter the show version EXEC command:
router> show version Cisco Internetwork Operating System Software IOS (tm) 12.1 Software (C2500-D-L), Version 12.1(1), RELEASE SOFTWARE
For general information about upgrading to a new software release, see Upgrading the Cisco IOS Software Release in Cisco Routers and Modems located at:
http://www.cisco.com/warp/public/620/6.html
Posted: Thu Aug 31 10:37:47 PDT 2000
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