Cisco Cisco IOS Software Release 12.2(33)SRE

Conditions: This symptom is observed when the no ip portbundle command is issued.

Workaround: Before unconfiguring portbundle, check if it is assigned to a subscriber session. If it 
is assigned, display a message and do not unconfigure portbundle. 

CSCsl87404

Symptoms: L2TP tunnels are not getting established.

Conditions: Occurs on a router running Cisco IOS Release 12.4(15)T2.

Workaround: There is no workaround. 

CSCsm20599

Symptoms: A line-by-line synchronization failure may occur and the standby RP may be reset.

Conditions: The symptoms are observed when a PVC is created on a P2P sub- interface, and when 
"exit" or "end" is not called.

Workaround: After creating a PVC on a P2P sub-interface, call "exit" or "end". 

CSCsm53196

Symptoms: Crash occurs at "ip_route_delete_common".

Conditions: Occurs under the following scenario:

1)A multicast BGP route exists.

2)A unicast BGP route exists for the same prefix.

3)Another route covered by the same majornet as the BGP route exists.

4)There are both iBGP and eBGP sources for the BGP prefix.

5)Redistribution of BGP routes into an IGP must be configured.

Topology change in network causes mBGP to switch from using the iBGP sourced route to the eBGP 
sourced route will cause the crash.

Workaround: If there are not both iBGP and eBGP sources for the same route the problem will not 
occur. If redistribution of BGP Into an IGP is not configured the problem will not occur. 

CSCso28309

Symptoms: Ping fails from reflector during internal testing.

Conditions: The goal of the test is to verify the successful termination of PPP/PPPoE over ATM 
sessions on router’s ATM interface using auto sensing. It is performed with auth_pap, process 
switch, and keepalive disabled. This has a functional impact as the virtual access entry is not getting 
added to the routing table after doing clear ip route.

Workaround: There is no workaround. 

CSCso59251

Symptoms: An interface on ESM20G goes down.

Conditions: Occurs when the interface has a 50 EVC on it. Seen on router using 
rsp72043-adventerprisek9_wan_dbg-mz.srb_throttle_033008 image.

Workaround: A shut/no shut will correct the symptom. 

CSCsq15198

Symptoms: When all uplink ports on SUP are admin down and a no shut is entered on any of the 
two uplink ports, BFD sessions running on a different LC on the chassis begin flapping.

Conditions: This occurs whenever the first of two uplink ports is brought up.