Cisco Cisco IOS Software Release 12.2(2)XT

Caveats describe unexpected behavior in Cisco IOS software releases. Severity 1 caveats are the most 
serious caveats; severity 2 caveats are less serious. Severity 3 caveats are moderate caveats, and only 
select severity 3 caveats are included in the caveats document.

This section contains only open and resolved caveats for the current Cisco IOS maintenance release.

All caveats in Cisco IOS Release 12.2 and Cisco IOS Release 12.2 T are also in Cisco IOS 
Release 12.2(2) XT3. 

For information on caveats in Cisco IOS Release 12.2, see Caveats for Cisco IOS Release 12.2.

For information on caveats in Cisco IOS Release 12.2 T, see Caveats for Cisco IOS 
Release 12.2 T, which lists severity 1 and 2 caveats and select severity 3 caveats and is located on 
Cisco.com and the Documentation CD-ROM. 

If you have an account with Cisco.com, you can use Bug Navigator II to find caveats of any severity 
for any release. To reach Bug Navigator II, log in to Cisco.com and click Service and Support: 
Technical Assistance Center: Select & Download Software: Jump to a software resource: 
Software Bug Toolkit/Bug Watcher. Another option is to go to 
http://www.cisco.com/cgi-bin/Support/Bugtool/launch_bugtool.pl

This section documents possible unexpected behavior by Cisco IOS Release 12.2(2) XT3 and describes 
only severity 1 and 2 caveats and select severity 3 caveats.

CSCdx04374

If CLNS is configured on the SVI interface (Vlan), the SNPA/MAC is not learned correctly by the 
router in which the SVI is present. This results in the router sending packets to a non-existent 
destination MAC address. 

There is no workaround.

CSCdw46537

Symptom:

SPAN doesn’t work after moving one port from multi span src ports. Disabling a source interface 
from a monitor session results in disabling the  entire monitor session, not just the specified port.

Workaround:

If a particular source port is required to be removed form a SPAN session, stop the entire SPAN 
session and re-configure with only the required source ports.