B2B - ASR/GSR SBC Basic call analysis

In order to debug SIP messages arriving to GSR SBC, please follow these steps:

GSR SBC

RP/0/9/CPU0:ciscotxbu-mysbc-1#show services red
Service type     Name                    Pref. Active        Pref. Standby     
--------------------------------------------------------------------------------
SBC              mycompanysbc              0/7/CPU0 Active     0/6/CPU0 Standby  

RP/0/9/CPU0:ciscotxbu-mysbc-1#run attach 0/7/CPU0

attach: Starting session 0 to nodeid 0/7/CPU0

attach: Type "exit" to quit.


ksh-LC>en
ksh-LC>cd /tmp
ksh-LC>ls pdtrc*    
pdtrc.201007191624.log    pdtrc.201007191936.log

ksh-LC>tail -f  pdtrc.201007191936.log

Place call

ASR SBC

  1) issue CLI 'sbc dump-diagnostics' ;
  2) issue CLI 'sh run';
  3) issue CLI 'sh bootflash:' to find out the ipstrc file1 dumped  by step1;
  4) debug sbc asr-sbc log-level buffer 0;
  5) Place the call, after the call is released, issue CLI 'sbc dump-diagnostics'
  6) issue CLI 'sh bootflash' to find out the newly dumped ipstrc file2 & pdtrc file.
  7) Copy the above file1, file2 & pdtrc out. (ie copy filename tftp/ftp,scp)
  8) 'no debug all' to disable the debug.

Please turn on the above debug in low traffic window in case it is a production network