Datasheet
105
Release Notes for Cisco IOS Release 12.1E on the Catalyst 6500 and Cisco 7600 Supervisor Engine and MSFC
OL-2310-11
New Features
• WS-X6416-GBIC—16-port Gigabit GBIC Ethernet switching module
• WS-6316-GE-TX—16-port Gigabit Ethernet RJ-45 switching module
• WS-X6348-RJ-45—48-port 10/100TX RJ-45 Ethernet switching module with 128 KB per-port
packet buffers
• WS-X6324-100FX—24-port 100FX Ethernet switching module with 128 KB per-port packet
buffers
New Software Features in Release 12.1(2)E
Release 12.1(2)E supports the following new software features:
• Mobile IP—Refer to the Cisco IOS IP and IP Routing Configuration Guide, Release 12.1,
“Configuring Mobile IP,” at this URL:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/ip_c/ipcprt1/1cdmobip.htm
• Web Cache Control Protocol (WCCP) Layer 2 PFC redirection—WCCP Layer 2 PFC redirection
allows directly connected Cisco Cache Engines to use Layer 2 redirection, which is more efficient
than Layer 3 redirection with generic route encapsulation (GRE). A directly connected Cache
Engine can be configured to negotiate use of the WCCP Layer 2 PFC Redirection feature. The
WCCP Layer 2 PFC redirection feature requires no configuration on the MSFC. The show ip wccp
web-cache detail command displays which redirection method is in use for each cache. Observe the
following guidelines:
–
The WCCP Layer 2 PFC redirection feature sets the IP flow mask to full-flow mode.
–
You can configure the Cisco Cache Engine software release 2.2 or later to use the WCCP
Layer 2 PFC redirection feature.
–
Layer 2 redirection takes place on the switch and is not visible to the MSFC. The show ip wccp
web-cache detail command on the MSFC displays statistics for only the first packet of a
Layer 2 redirected flow, which provides an indication of how many flows, rather than packets,
are using Layer 2 redirection. Entering the show mls entries command on the supervisor engine
displays the other packets in the Layer 2 redirected flows.
Configure the Cisco IOS WCCP as described in the Cisco IOS Configuration Fundamentals
Configuration Guide, under “Configuring Web Cache Services Using WCCP,” at this URL:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/fun_c/fcprt3/fcd305.htm
• Cisco IOS server load balancing (Cisco IOS SLB) enhancements:
–
Client NAT
–
HTTP probe
–
Stateful backup
–
CISCO-SLB-MIB support
Refer to this online publication:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121limit/121e/121e2/
iosslb2.htm
• For the following features, refer to these publications:
–
The Catalyst 6500 Series Cisco IOS Software Configuration Guide at this URL:
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/12_1e/swconfig/index.htm
–
The Catalyst 6500 Series Cisco IOS Command Reference publication at this URL: