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Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
OL-26630-12
Caveats in Cisco IOS XE 3.9S Releases
•
CSCue57671
Symptoms: Router Crashes while running with REP configurations Conditions: Crash seen while
removing REP configuration from interface. Workaround: None
•
CSCue59544
Symptoms: Once path is once available for TE tunnel, it doesn’t comes up Conditions: If
A900-IMA16D is also present on router, it generates storm which prevent RSVP processing and TE
tunnel doesn’t up once TE path is available again
Workaround: None
• CSCue77612
Symptoms: The mac sync can happen on wrong lportid in the standby which can cause traffic
forwarding to the wrong port after switchover.
Conditions: The traffic impact will be seen only after the switchover.
Workaround: clear mac-add after switchover.
• CSCue86696
Symptoms: Noticed interface flap on one of the routers, during overnight soak run.
Conditions: Seen during prolonged soak tests with SFP IM.
Workaround: None
• CSCue87542
Symptoms: On BDI delete, if routing traffic continues, it will be punted to the CPU which will flood
out the CPU resulting in control plane loss
Conditions: Ping failure and BFD/OSPF flaps on BDI delete while ipv4/v6 traffic is running.
Workaround: The workaround is to delete the TEFP and then delete the BDI interfaces.
• CSCue89790
Symptoms: IPv6 traffic outage after SSO when NSF timer expires.
Conditions: Occurs when configuring IPv6 static routing or IPv6 OSPF routing.
Workaround: For IPv6 SSO support, ensure the following:
– IPv6 neighbor are configured statically.
–
For dynamic route or static route, you must run a hardware BFD between IPV6 neighbors.