Cisco Cisco IOS Software Release 12.2

CSCdu88095

On a Cisco AS5400 access server gateway in the Cisco SS7 Interconnect for Voice Gateways 
solution that is running Cisco IOS Releases 12.2(2)T, 12.1(5)XM, or 12.2(2)XA, the associated B 
channels do not come into service after configuring the Non-Facility Associated Signaling (NFAS) 
under the T1 controllers. If all the NFAS members are removed and then reconfigured and the isdn 
rlm-group command is applied, the B channels do not come into service.

Workaround: There are two ways to workaround this problem before removing the NFAS members 
and adding them back in.

1. Shutdown the D channel (rlm or int ser6/0:23); remove the pri-group; configure pri-group; and 
configure isdn rlm-group 0.

2. Enter the no isdn rlm-group 0 command first, and then remove all the NFAS members; configure 
nfas again, and then enter the configure rlm-group command. 

CSCdv01870

A router may reload when a permanent virtual connection (PVC) is removed while a large amount 
of traffic is going through a PVC that has the frame-relay adaptive-shaping interface-congestion 
map-class configuration command configured. There is no workaround. 

CSCdv03689

If a Point to Point Protocol (PPP) Multilink bundle interface goes down while data is flowing 
through it, a Cisco router may reload. There is no workaround. 

CSCdv16842

A router may reload when it is performing heavy IP Control Protocol (IPCP) address 

negotiations such as those that occur when an ATM or Frame Relay interface with several hundred 
links are brought up simultaneously.

This symptom is only seen when several hundred IPCP sessions are renegotiated without 

a recycle of Link Control Protocol (LCP).

There is no workaround.