Specifications

1355
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(27)S1
Interfaces and Bridging
• CSCed47550
Symptoms: BGP Policy Accounting information is not available via SNMP for 802.1Q VLAN
subinterfaces.
Conditions: This symptom is observed on Cisco 12000 and 7500 series routers.
Workaround: There is no workaround.
IP Routing Protocols
• CSCed35907
Symptoms: When the following CLI sequence is configured, the router may run into a race condition
and crashes:
router ospf 100
router ospf 1000 vrf <vrf_name>
then
no router ospf 100
router ospf 1000
no router ospf 1000
Conditions: This symptom is observed on a Cisco router that is running Cisco IOS Release 12.3(4)T
and later releases. A configuration script with the above CLI sequence is run on the router.
Workaround: There is no workaround.
• CSCed41323
Symptoms: A Cisco router with a label switched path (LSP) tunnel on which Fast ReRoute (FRR)
is enabled and active may stop refreshing the Resource Reservation Protocol (RSVP) state when the
refresh updates are received via RSVP summary refresh messages. This situation causes the RSVP
to time out and the LSP tunnel to be torn down.
Conditions: This symptom is observed on a Cisco router that does not transmit RSVP messages for
LSP tunnels on which FRR is enabled and active via message IDs. The symptom does not occur
when FRR is enabled but not active.
A peer router that runs software other than Cisco IOS software may continue to send RSVP
messages with messages IDs that request an acknowledgment. The Cisco router does acknowledge
these message IDs, causing the peer router to start sending RSVP summary refresh messages to
refresh the RSVP state. The Cisco router ignores the message IDs that are contained in these RSVP
summary refresh messages and does not refresh the RSVP state.
Workaround: There is no workaround.
• CSCed60289
Symptoms: IP background process is sluggish.
Conditions: This symptom occurs when many interfaces go down at the same time.
Workaround: There is no workaround.