Cisco ASR 903 Release Notes page 123

Chapter
Symptom: The active RSP displays traceback error messages occurring on the standby RSP.
Conditions: Occurs with the following configuration:
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The issue occurs after you issue a stateful switchover (SSO).
Workaround: Avoid performing an SSO with the configuration described.
CSCud33906
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Symptom: Equal Cost Multipath (ECMP) loopback does not function properly.
Conditions: Occurs when a port-channel link dynamically assigned as an ECMP path.
Workaround: There is no workaround.
• CSCud34346
Symptom: The router crashes.
Conditions: The issue can occur when:
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Workaround: There is no workaround.
CSCud38038
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Symptom: The router records incorrect delay measurements after a reload.
Conditions: Occurs under the following conditions:
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Workaround: You can use the following workarounds:
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• CSCud38115
Symptom: OSPF connections flap and drop traffic for approximately 20 seconds
Conditions: Occurs during stateful switchover (SSO).
Workaround: There is no workaround.
CSCud38419
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Symptom: The router crashes when you apply an access control list (ACL) configuration. The issue
occurs rarely and when the router is configured at a high scale.
Conditions: Occurs when:
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OL-26630-08
The router is configured with 1000 multicast groups
The outgoing interface is a bridge-domain interface (BDI)
All hosts are receiving a high rate of traffic.
The router is configured with multiple ECMP paths
MPLS IP is not enabled on one of the ECMP paths
You configure Delay Measurement Message (DMM) on a port-channel interface.
The port-channel member links are on different interface modules (IMs).
You reload the router.
Remove the ethernet cfm global command and re-apply it after the port-channel member links
recover.
Configure PTP clock synchronization.
You create and apply IPv6 ACLs
You remove the IPv6 ACLs
You replace the IPv6 ACLs with IPv4 ACLs
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
Caveats in Cisco IOS XE 3.7S Releases
41