Cisco ASR 900 Series Release Notes

7
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
OL-26630-12
Caveats in Cisco IOS XE 3.9S Releases
Workaround: There is no workaround.
• CSCue32016
Symptom: On IM online insertion and removal (OIR) or Router reload with shutdown on CE
controller, Ethernet (core) does not transmit any packets.
Conditions: This issue occurs when remote peer does not assert alarm indication signal (AIS)
downstream.
Workaround: There is no workaround.
• CSCue44876
Symptom:
– Packet-over-SONET (PoS) interface on the high availability (HA) system continues flapping
– Complete traffic is dropped
– PoS interface of the remote Cisco ASR 903 Router remains in up or down state.
Conditions: This issue occurs on activating SSO after an IM OIR when configuring PoS interface
in OC-12 mode.
Workaround: There is no workaround.
More Info: This issue is not seen in OC-3 mode.
• CSCue61850
Symptom: Maintenance End Points (MEPs) start flapping when no shutdown command is issued
on EVC bridge-domain (BD) or port channel interface running CFM.
Conditions: This issue occurs when more than 256 CFM sessions are configured.
Workaround: Configure fewer CFM sessions (50 to 100).
• CSCue67835
Symptom: OSPF flaps when you set the dead interval timer as 6 seconds and hello interval as 2
seconds.
Conditions: This issue is observed when you perform an SSO.
Workaround: Use the default OSPF hello timers.
• CSCue69818
Symptom: The show inventory command displays a wrong serial number.
Conditions: Inventory is managed by the "main serial number". However, when using the show
inventory command for Redundant Power System (RPS) and IM, "PCB serial number" is displayed
instead of the "main serial number".
Workaround: Use the show diag all eeprom detail command to list the correct serial number.
• CSCue75372
Symptom: Time-Hog traceback seen after router or IM reloads.
Conditions: This issue occurs on bootup of IM or router.
Workaround: There is no workaround.
• CSCue97180
Symptom: The Cisco ASR 903 Router sometimes crashes when used as a multicast VPN (mVPN)
Encap PE Router.

Cisco ASR 900 Series Specifications

General

Brand	Cisco
Model	ASR 900 Series
Category	Network Router
Language	English