Cisco ASR 900 Series Release Notes page 204

Caveats in Cisco IOS XE 3.9S Releases
Conditions: This issue occurs in an mVPN network on exceeding core multicast distribution tree
(MDT) scale of 1K with more than 20 virtual routing and forwarding (VRFs) on a flap access
interface of a PE Router.
Workaround: Do not exceed more than 1K core MDT scale Work around for a crash is unavailable.
• CSCuf02007
Symptom: Continuous SEMHOG is seen on the router console with incremental sync failure and
IOMD crashes on OC-3 IM.
Conditions: Router receives continuous SEMHOG for multiple processes.
Workaround: There is no workaround.
• CSCuf06001
Symptom: When TCAM limit is reached, statistics do not work accurately.
Conditions: This issue occurs when the TCAM entries exceed the limit during dynamic
modification of service-policy.
Workaround: There is no workaround.
• CSCuf43992
Symptom: The router crashes if you configure local span.
Conditions: This issue is observed when you configure local span on the router.
Workaround: Use another Encapsulated Remote Switched Port Analyzer (ERSPAN) configuration
to work as local span with source and destination ERSPAN session configured in one router.
CSCuf45656
•
Symptom: Cisco ASR 903 Router crashes with segmentation fault.
Conditions: This issue occurs during multicast convergence on EFP's configured with split horizon.
Workaround: There is no workaround.
CSCuf53527
•
Symptom: Class of Service (CoS) inner value gets copied into the CoS value.
Conditions: This issue occurs when configuring Q-in-Q without rewrite service instance.
Workaround: To ensure CoS inner value does not get copied, apply QoS policy-map.
• CSCuf65301
Symptom: Micro flaps observed on the router.
Conditions: This issue is seen when system is kept idle for hours.
Workaround: There is no workaround.
CSCuf79397
•
Symptom: F1 is stuck in init state after the standby RSP reloads.
Conditions: This issue occurs on a reload or OIR of the standby RSP.
Workaround: Reload the standby RSP again.
CSCuf81085
•
Symptom: After you use the shutdown and no shutdown commands on the controller of PE, IMA
VCs go down.
Conditions: This issue is observed after using the shutdown and no shutdown commands on the
OC3 controller on PE routers.
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
8
OL-26630-12