Cisco ASR 900 Series Release Notes

25
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
OL-26630-12
Chapter
Caveats in Cisco IOS XE 3.8S Releases
• CSCuc58371
Symptom: Some links do not become active on the OC-3 interface module.
Conditions: Occurs on the OC-3 interface module (IM) configured at a high scale after you perform
a multiple soft OIRs on the IM. The issue occurs frequently with SONET framing.
Workaround: You can use the following workarounds:
– Apply a shutdown/no shutdown to the OC-3 controller.
– Re-apply the PDH configuration.
– Add and remove a loopback configuration on the PDH.
Add and remove a loopback configuration on the OC-3 controller.
• CSCuc64654
Symptom: The router is unable to ping the remote customer edge (CE) router.
Conditions: Occurs when the router is acting as a provider edge (PE) device and is connected to the
remote PE using dual loopback interfaces for peering with iBGP sessions.
Workaround: Use a single loopback interface. Use the same loopback interface for IPv4 and
VPNv4 address families.
• CSCuc66393
Symptom: The router loses OC-3 interface configurations after an ISSU upgrade.
Conditions: Occurs on OC-3 serial and POS interfaces after an ISSU software upgrade.
Workaround: There is no workaround.
• CSCuc68462
Symptom: The router drops PTP traffic.
Conditions: The issue occurs occasionally when you configure PTP slave clock to receive
VLAN-tagged traffic.
Workaround: There is no workaround.
• CSCuc71723
Symptom: The router erroneously accepts a service-policy configuration on a CEM interface and
displays it within the running configuration.
Conditions: Occurs when you configure a service-policy on a CEM interface.
Workaround: There is no workaround.
• CSCuc85721
Symptom: The router crashes.
Conditions: Occurs under the following conditions:
– MR-APS is configured on serial interfaces on the OC-3 interface module
– The router is configured with a high number of serial interfaces
– You reset an interface module or reload the router.
Workaround: There is no workaround.
• CSCuc90008
Symptom: The OC-3 controller stops passing traffic.
Conditions: Occurs after you reset the facing interface on the CE device.

Cisco ASR 900 Series Specifications

General

Brand	Cisco
Model	ASR 900 Series
Category	Network Router
Language	English