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Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
OL-26630-12
Chapter
Caveats in Cisco IOS XE 3.11S Releases
The following sections describe the open and resolved caveats in 3.11S Releases:
• Open Caveats—Cisco IOS XE Release 3.11.1S, page 14-2
• Resolved Caveats—Cisco IOS XE Release 3.11.1S, page 14-3
• Open Caveats—Cisco IOS XE Release 3.11S, page 14-5
• Resolved Caveats—Cisco IOS XE Release 3.11S, page 14-5
Open Caveats—Cisco IOS XE Release 3.11.1S
This section documents the unexpected behavior that might be seen with the Cisco ASR 903 router in
Cisco IOS XE Release 3.11.1S.
• CCSCul58083
Symptom: After IP mtu is configured on an interface, any change in to the MTU are not reflected
on the interface.
Conditions: This issue occurs when IP MTU is configured and the MTU is changed.
Workaround: Set the required interface MTU before executing the ip mtu command or unconfigure
the IP MTU on the interface and then change the interface MTU.
• CSCul58148
Symptom: After setting the MTU on an interface, the ip mtu is also set. However, when the interface
is defaulted, the ip mtu setting is not unconfigured.
Conditions: This issue occurs when the IP address is set on the interface and MTU is configured.
The issue occurs when the interface is defaulted
Workaround: Do not default the interface. Use no mtu command instead.
• CSCum70550
Symptom: IPv4 and MPLS TTL does not get decremented when fragmentation is involved in the
same router.
Conditions: This issue occurs when IP fragmentation is performed.
Workaround: There is no workaround.
• CSCum81665
Symptom: Console errors and incremental leaks are observed on the Cisco ASR 903 router.
Conditions: This issue is observed on executing the clear ip mroute with pim-ssm configured for
core replication.
Workaround: There is no workaround.
• CSCum85248
Symptom: Stale entries do not get timed out or get removed, even after there is no multicast traffic
for the corresponding group.
Conditions: This issue occurs when the supported limit of entries is exceeded.
Workaround: Reload the router to remove the entries.
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