Specifications

1202
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(28)S
• CSCed75295
Symptoms: FRR LSPs may fail to provide protection with a Next-next-hop (NNHOP) backup
tunnel.
Conditions: This symptom is observed only when a primary LSP reaches beyond a merge point.
Workaround: There is no workaround.
• CSCed82273
Symptoms: IPv6 BGP may not reach the established state.
Conditions: This symptom is observed on a Cisco 12000 series that runs the gsr-p-mz image of
Cisco IOS Release 12.0(26)S2 or Release 12.0(28)S. However, the symptom is not
platform-specific.
Workaround: There is no workaround.
• CSCee10426
Symptoms: A BGP prefix may receive or advertise incorrect label information.
Conditions: This symptom is observed on an MPeBGP session between ASBRs when there is more
than one MPeBGP session configured.
Workaround: There is no workaround.
ISO CLNS
• CSCec39973
Symptoms: A router that runs Intermediate System-to-Intermediate System (IS- IS) may reload
unexpectedly when there are a lot of adjacencies that continue to flap.
Conditions: This symptom is observed on a Cisco router that runs Cisco IOS Release 12.2 S.
In Release 12.0 S, the symptom may occur when you enter the router isis global configuration
command followed by the fast- flood router configuration command.
In Release 12.3, the symptom may occur when you enter the router isis global configuration
command followed by the ip fast- convergence router configuration command.
Workarounds: Prevent IS-IS adjacencies from flapping. There is no other workaround for
Release 12.2 S.
For Release 12.0 S, do not enter the router isis global configuration command followed by the
fast-flood router configuration command.
For Release 12.3, do not enter the router isis global configuration command followed by the ip
fast-convergence router configuration command.
• CSCed40888
Symptoms: A Border Gateway Protocol (BGP) session may be terminated unexpectedly.
Conditions: This symptom is observed on a Cisco router that functions as a peer in a BGP
configuration when you disable and reenter the neighbor ip-address send-label address family
configuration or router configuration command or when you move the router that has the neighbor
ip-address send-label address family configuration or router configuration command enabled to a
peer group.
Workaround: There is no workaround.