Cisco ASR 900 Series Release Notes

51
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
OL-26630-12
Chapter
Caveats in Cisco IOS XE 3.7S Releases
Conditions: Occurs when you issue the default interface command and immediately restore the
configuration. The issue occurs with configurations containing either a large number of EFPs or
features that impact EFP programming at a lesser scale, such as QoS.
Workaround: Wait for the router to clear the old EFP configuration before adding a new
configuration.
• CSCtw76473
Symptom: The router displays packet drops on some VPLS pseudowire virtual circuits (VCs) on
the disposition side.
Conditions: Occurs under the following conditions:
– The core network is running MPLS-TP tunnels
– There is an SSO switchover on the remote end or an LDP neighbor reset on the peer end.
Workaround: There is no workaround.
• CSCty34054
Symptom: The router displays CPU utilization traceback messages and drops all multicast traffic
for 2050 seconds.
Conditions: Occurs under the following conditions:
– 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.
– Yo u e nter a shutdown command on the access interface.
Workaround: There is no workaround.
• CSCty45696
Symptom: The show policy-map command displays incorrect information.
Conditions: Occurs when you use the show policy-map command to display QoS policies on an
EFP that has a port shaping QoS policy.
Workaround: There is no workaround.
• CSCtz55979
Symptom: The router crashes.
Conditions: Occurs when you configure CFM, SCE over MPLS, VPLS, or G.8032 services while
running SNMP polling.
Workaround: There is no workaround.
• CSCtz68510
Symptom: The router displays a CPU HOG message.
Conditions: Occurs when you remove a PTP configuration.
Workaround: There is no workaround; however, the issue does not have any functionality impact.
• CSCua62029
Symptom: The router crashes.
Conditions: Occurs when you configure a class-based QoS policy with the following
characteristics:

Cisco ASR 900 Series Specifications

General

Brand	Cisco
Model	ASR 900 Series
Category	Network Router
Language	English