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Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Caveats
Resolved Caveats—Cisco IOS Release 12.0(32)S6
IP Routing Protocols
• CSCei29944
Symptoms: A CE router that has L2TP tunnels in an MPLS VPN environment with about 1000 VRFs
may crash and generate the following error message:
Address Error (load or instruction fetch) exception, CPU signal 10, PC = 0x50766038
Conditions: This symptom is observed on a Cisco router that runs Cisco IOS Release 12.0(32)S and
that functions as a CE router when BGP neighbors are unconfigured via the no neighbor ip-address
command while the show ip /jointfilesconvert/415844/bgp summary command is entered from the Aux console. The
symptom is not release-specific and may also affect other releases.
Workaround: There is no workaround.
• CSCsd15749
Symptoms: Prefixes that are tagged with Site of Origin (SoO) values may not be filtered at the
border.
Conditions: This symptom has been observed when SoO values are configured for a peer group. The
peer group members may not correctly filter the prefixes that are based on the SoO value at the
border.
Workaround: BGP supports Dynamic Update peer groups, which ensure that packing is as efficient
as possible for all neighbors regardless of whether or not they are peer-group members.
Peer groups simplify configurations, but peer-templates provide a much more flexible solution to
simplify the configuration than peer groups.
If the SoO configuration is applied directly to the neighbor or to a template, the symptom does not
occur. Using templates to simplify the configuration is a better solution and Dynamic Update peer
groups ensure efficiency.
• CSCse68877
Symptoms: A label mismatch may occur between the CEF table and the BGP table, and a new label
may not be installed into the CEF table.
Conditions: This symptom has been observed after a BGP flap has occurred on a Cisco router that
is configured or MPLS VPN but that does not function in an inter-autonomous system and that does
not have multiple VRFs.
Workaround: There is no workaround. After the symptom has occurred, enter the clear ip route
command for the affected VRF.
• CSCsf99057
Symptoms: OSPF stub-router advertisement feature doesn’t work with RPR+ and SSO when RP
switchover took place. After RPR+/SSO switchover took place, the newly active RP never advertise
max-metric router LSA.
However, if NSF doesn’t configured on the switch, it is desirable to advertise max-metric router
LSA.
Conditions: The system condition affected by this problem is below.
–
The router which has dual RP and configured with RPR+ or SSO(non-NSF).
–
Redundant RP is in "Standby-Hot" state.
–
The max-metric router-lsa command is configured for OSPF in router configuration mode.
Workaround: If RP redundancy mode is configured as RPR, then OSPF stub-router advertisement
feature work correctly.
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