Cisco ASR 900 Series Release Notes

26
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
OL-26630-12
Chapter
Caveats in Cisco IOS XE 3.7S Releases
• CSCty74115
Symptoms: The router displays traceback and CPU error messages.
Conditions: Occurs when you configure a high number of MAC address table entries while REP is
enabled; the router displays errors during a REP topology change, REP preemption, or when you
perform a shutdown/no shutdown on an interface.
Workaround: Reduce the number of MAC address entries.
• CSCua15499
Symptoms: The show interface command output displays 1000 Mbps information for both
100Mbps and 10 gigabyte transceivers.
Conditions: Occurs when you use 100 Mbps and 10 Gigabit Ethernet transceivers
Workaround: There is no workaround.
• CSCua25779
Symptom: An Ethernet virtual circuit (EVC) interface does not forward IPv4 traffic.
Conditions: Occurs when you apply the encapsulation dot1q command to an EVC, followed by
the encapsulation untagged command.
Workaround: Issue a shutdown/no shutdown on the EVC interface.
• CSCua62305
Symptom: QoS does not function on the router.
Conditions: Occurs under the following conditions:
– You apply a service-policy and an ACL to the same interface
– You modify the ACL by adding an ACE containing a permit ospf statement.
Workaround: There is no workaround.
• CSCub64331
Symptom: The 10Mhz reference clock to the SDH Equipment Timing Source (SETS) goes to
out-of-resource (OOR).
Conditions: Occurs when you connect both 10Mhz and 1pps inputs.
Workaround: Connect only the 10Mhz interface.
• CSCub71932
Symptom: The OC-3 interface module (IM) crashes.
Conditions: Occurs when you boot the router with an OC-3 IM and there are is no configuration
applied to the IM. The issue occurs intermittently.
Workaround: There is no workaround; wait for the interface module to reset.
• CSCub89531
Symptom: Multicast statistics in the MFIB output can show NA/NA. This causes multicast traffic
to drop every 3 minutes once the 3 minute timer expires.
Conditions: Occurs after an stateful switchover (SSO).
Workaround: Issue another SSO or reload the router.

Cisco ASR 900 Series Specifications

General

Brand	Cisco
Model	ASR 900 Series
Category	Network Router
Language	English