Cisco Bug: CSCte20486 - KeepAliveTimeOut with Synch status onlyOnRPM
Feb 22, 2014
- Cisco IOS
Known Affected Releases
Symptom: MGX RPM-XF PPP down after swapping RPM-XF (KeepAliveTimeOut with Synch status onlyOnRPM) The problem can happen when both Primary -> Secondary and Secondary -> Primary RPM-XF switchover (1:N), typically affecting multiple connections between PXM-XF, so far seen with IOS upgrade on RPM-XF, causing the outage of BTSs, never auto-recovered till manual intervention (dncon/upcon). Followings were confirmed when the problem was occurring. MPSM dspppplink(switchside) : Fail Reason is "KeepAliveTimeOut" tstdelay : "Failed" dspchancnt : does not increase at Both Rcv and Xmt sarLcnInfo switchside : does not increase at Rcv RPM-XF show interface : switch int does not receive packet show atm pvc : PPP status "LCP negotiation" can not complete show switch connections : "onlyOnRpm" Conditions: ATM connection between PXM-XF seems to have a problem. ("onlyOnRpm") Never restored by RPM-XF/PXM45C/MPSM card swtichover Restored by dncon/upcon commands (on MPSM) Not reproducible at Cisco lab over 200 times RPM-XF switchover test.
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