Cisco ASR 900 Series Release Notes

31
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
OL-26630-12
Chapter
Caveats in Cisco IOS XE 3.8S Releases
• CSCud33298
Symptom: The router crashes.
Conditions: Occurs when the peer device shuts down.
Workaround: There is no workaround.
• CSCud33822
Symptom: The router drops VPN traffic on an MPLS-TE tunnel using an explicit-null label
advertisement after tunnel recovery.
Conditions: The issue occurs under specific network conditions where TE is LDP-enabled and runs
over a 10G link with dampening enabled. VPN prefixes are advertised from route-reflector as well
as from the VPN PE over the TE tunnel. The TE tunnel is delayed and this causes label forwarding
to switch from the 2 stack labeled path to the 3 stack labeled path with same VPN label coming from
2 sources.
Workaround: Issue a shutdown/no shutdown on the tunnel or protect the tunnel from going down
using fast reroute (FRR).
• CSCud36431
Symptom: Backup path is not programmed properly for global prefixes and can cause the cut-over
to have a higher convergence time.
Conditions: Occurs when the router is running remote LFA FRR in a ring with 7 or more routers
and one of the router in the ring reloads.
Workaround: Issue a shutdown/no shutdown on the backup or primary interface.
• CSCud38115
Symptom: OSPF connections flap and drop traffic for approximately 20 seconds
Conditions: Occurs during stateful switchover (SSO).
Workaround: There is no workaround.
• CSCud38123
Symptom: The router drops traffic and displays error messages similar to the following:
%FMFP-3-OBJ_DWNLD_TO_CPP_FAILED: SIP1: fman_fp_image: LENTRY
0xXXXXXXXXX (InLabel XX Table 0) download to CPP failed
Conditions: Occurs when the primary path flaps more than 15 times while the router is configured
with 8000 global prefixes
Workaround: Reload the router.
• CSCud38164
Symptom: The router displays an Object download failure message on the console.
Conditions: Occurs when the number of ip routes reaches its maximum configurable limit.
Workaround: There is no workaround.
• CSCud38433
Symptom: The router is unable to establish MPLS neighborship or ping the destination loopback
interface.
Conditions: Occurs when you configure two Equal Cost Multipath (ECMP) paths on a bridge
domain interface (BDI) using static routes.
Workaround: The following workarounds exist:

Cisco ASR 900 Series Specifications

General

Brand	Cisco
Model	ASR 900 Series
Category	Network Router
Language	English