Cisco ASR 900 Series Release Notes

35
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
OL-26630-12
Caveats in Cisco IOS XE 3.9S Releases
Conditions: When IMA are configured.
Workaround: OIR.
• CSCub33664
Symptoms: High Delay values seen when using DMM Sesssion on ASR903 post SSO.
Conditions: Delay values will be higher only after SSO on ASR903.
Workaround: Remove and reconfigure DMM sessions again post SSO on AR903.
• CSCub38619
Symptoms: System crashes when COS value for vlan under an EFP is modified.
Conditions: This happens only when a prior operator attempt to modify the COS value failed. This
failure can be due to incompatible efp match conditions on the egress efp.
Workaround: None
• CSCub41772
Symptom: Router console is flooded with CPUHOG and EVENTLIB messages.
Conditions: The issue occurs rarely when you issue multiple interface module reset (OIRs), RSP
switchovers (SSO), or reloads while using a configuration with a high number of T1 serial links on
the OC-3 interface module.
Workaround: There is no workaround; however, the messages to not affect router functionality.
• CSCub48129
Symptoms: CFM CCM’s were being sent out on egress interface with cfm disabled.
Conditions: Configure UP mep on EVC BD.DIsable cfm on the egress interface.
Workaround: There is no workaround.
• CSCub49985
Symptoms: MPLS pseudowire ping from the peer to the Cisco ASR 903 fails if the peer is using
TTL-based ping.
Conditions: This symptom occurs when the peer is using TTL-based ping.
Workaround: There is no workaround.
• CSCub50110
Symptoms: Tx timer table not programmed after shut/no shut for hardware offload BFD. It is not
consistently seen.
Conditions: The issue is seen while we do shut/no shut on BDI/Physical interface which has BFD
configured.
Workaround: None.
• CSCub50487
Symptoms: The router accepts a rewrite push statement on an EFP configured with QinQ
encapsulation.
Conditions: Occurs when you configure an xconnect EFP with QinQ encapsulation and a rewrite
push statement.
Workaround: There is no workaround.
• CSCub52571
Symptoms: Traceback seen on console. This traceback doesn’t impact any functionality

Cisco ASR 900 Series Specifications

General

Brand	Cisco
Model	ASR 900 Series
Category	Network Router
Language	English