Cisco ASR 900 Series Release Notes

53
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
OL-26630-12
Chapter
Caveats in Cisco IOS XE 3.7S Releases
• CSCub78861
Symptom: Following a reload, the router handles CFM only on 128 VLANs or bridge-domains.
Conditions: Occurs when the router configuration contains CFM and more than 128 VLANs or
bridge-domains.
Workaround: There is no workaround.
• CSCuc00986
Symptom: The router drops MPLS TP sessions, impacting traffic.
Conditions: Occurs following an software upgrade (ISSU).
Workaround: There is no workaround.
• CSCuc23610
Symptom: The router does not pass IP traffic with an MPLS LDP tunnel label of Imp-null.
Conditions: Occurs when the router is switching traffic using IP fast-reroute (FRR).
Workaround: Configure the mpls ldp explicit-null command.
• CSCuc31037
Symptom: The router stops passing traffic on pseudowire connections.
Conditions: Occurs in a redundant system following a stateful switchover (SSO).
Workaround: There is no workaround.
• CSCuc34088
Symptom: The router passes lower traffic levels when you add links to an IMA bundle and perform
IM OIR/router reload.
Conditions: Occurs when you send traffic above the E1 line rate on one link within an IMA bundle
and reset (OIR) the interface module.
Workaround: Remove and re-apply the IMA interface configuration.
• CSCuc36522
Symptom: The router does not timestamp traffic on port-channel interfaces.
Conditions: Occurs when you configure a CFM EVC bridge-domain up MEP on a port-channel.
Workaround: There is no workaround.
• CSCuc42085
Symptom: The 1PPS output from the ASR 903 is out of range when compared to the 1PPS output
of the PTP master clock.
Conditions: Occurs when the router is configured as a hybrid clock (ordinary/boundary) and there
are intermediate hops between the router and the PTP master clock. To date the problem occurs only
when the intermediate hops are through an ASR 9000 router.
Workaround: There is no workaround.
• CSCuc42206
Symptom: Links on copper SFP interface flap during stateful switchover (SSO).
Conditions: Occurs when you initiate a stateful switchover (SSO) on a redundant system with a
copper SFP.
Workaround: There is no workaround.

Cisco ASR 900 Series Specifications

General

Brand	Cisco
Model	ASR 900 Series
Category	Network Router
Language	English