Cisco ASR 900 Series Release Notes page 79

Chapter Restrictions and Caveats in Cisco IOS XE 3.6S Releases
Conditions: The issue can occur when you perform an online insertion and removal (OIR) of an
OC-3 interface module.
Workaround: Perform a hard OIR (IM replacement) followed by a soft OIR (RSP switchover) on
the router.
• CSCty24143
Symptoms: The router does not pass IPv6 OSPF traffic.
Conditions: Occurs when the router passes traffic at the full line rate of a link.
Workaround: Reduce the traffic rate by 10%.
CSCty26726
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Symptoms: The IOS kernel crashes.
Conditions: Occurs following a reload on a dual RSP system.
Workaround: Power cycle the router.
CSCty28986
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Symptoms: A configuration with a high number of down MEPs does not function properly.
Conditions: Occurs when you configure 500 or more down MEPs with 500 or more xconnect
configurations between service instances.
Workaround: Configure no more than 300 CFM sessions.
CSCty29449
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Symptoms: The router crashes.
Conditions: The issue can occur when you shut down and reenable an interface module.
Workaround: There is no workaround.
• CSCty34054
Symptoms: The router displays CPU utilization traceback messages and drops all multicast traffic
for 20–50 seconds.
Conditions: Occurs under the following conditions:
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Workaround: There is no workaround.
CSCty34521
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Symptoms: The router does not pass CFM traffic over an Ethernet CFM cross-connect.
Conditions: Occurs under the following conditions:
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Workaround: Do not continuously perform an OIR and set a default interface.
OL-26630-12
Multicast is enabled with more than 500 multicast groups
The router is using RSP1B in SSM mode
BDI is configured on the access side of the router
There are 24 EFPs on each bridge domain
You enter a shutdown command on the access interface.
There is a CFM xconnect between two Cisco ASR 903 Router devices
You perform an OIR and set a default interface.
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
Caveats in Cisco IOS XE 3.6S Releases
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