Troubleshooting guide

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Cisco PGW 2200 Softswitch Release 9.8 Operations, Maintenance, and Troubleshooting Guide
OL-0800-14
Chapter 6 Troubleshooting the Cisco PGW 2200 Softswitch Platform
Tracing
To print diagnostic information on a hung call, complete the following steps:
Step 1 If the hung call is a SIP-to-SIP call, proceed to Step 3. Otherwise, proceed to Step 2.
Step 2 Log in to the active Cisco PGW 2200 Softswitch and enter the prt-call: sig_path :cic= number
[,log=”
xyz ”] command
or
prt-call: sig_path :span= phys , bc= bchan [,log=” xyz ”]
Where:
• sig_path—Corresponding MML name for any of the following component types:
– Signaling path of in-band TDM up to MUX and then time switched to TDM media and sent to
the Cisco PGW 2200 Softswitch.
– Signaling path of in-band TDM signaling up to CU and then encapsulated and sent over IP to
the Cisco PGW 2200 Softswitch.
– Signaling path of in-band TDM signaling up to NAS and then converted to NI2 and sent to the
Cisco PGW 2200 Softswitch over IP (that is, FE box<-sig/tdm->NAS<-NI2/IP->Cisco PGW
2200 Softswitch).
– Signaling path or routeset that is associated with an SS7 destination point code.
– Signaling path for EISUP.
Note This command allows use of wildcards for the sig_path parameter.
• number—Numeric value that identifies the ISUP circuit identification code (CIC) number.
• phys—16-bit value that identifies an ISDN/PRI physical cable.
• bchan—Numeric value that identifies the non-ISUP bearer channel number. BC is used for
non-ISUP trunks. Otherwise, use CIC.
• xyz—Optional parameter that names the ASCII log file to which the output of this command is
written. The name that is specified for this parameter is prefixed to the actual name of the file, which
includes the sig_path name, date, and time. If you do not provide a log filename, a default name
consisting of the sig_path name, date, and time is created. The extension of these log files is .prt.
The files are located in the $BASEDIR/var/trace directory.
For example, the
prt-call:dms100-pc:cic=124 MML command prints call data for a signaling service
that is called dms100-pc using a CIC of 124.
Proceed to Step 4.
Step 3 Log in to the active Cisco PGW 2200 Softswitch and enter the prt-call: sig_path :cid=” name ”
[,log=”
xyz ”] command.
Where:
• sig_path—MML name for the signaling service that is associated with the SIP-to-SIP call.
• name—SIP call identification name. You can obtain this name by issuing the rtrv-sip MML
command, as described in the “Retrieving SIP Call Information” section on page 3-62.