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
Troubleshooting Using Cisco PGW 2200 Softswitch Alarms
Step 2 Retrieve the current DNS properties by logging in to the active Cisco PGW 2200 Softswitch, starting an
MML session, and entering the prov-rtrv:ss7SGPath:name=“sig_srv” command:
Where:
sig_srv is the MML name of the identified SS7 signaling service.
The system returns a response that lists all the properties that are associated with the selected SS7
signaling service.
Step 3 Verify that the information displayed for the SS7 signaling service is correct.
If it is correct, proceed to Step 4. Otherwise, proceed to Step 5.
Step 4 Begin a dynamic reconfiguration session to correct the settings for the SS7 signaling service by using
the procedure that is described in the “Invoking Dynamic Reconfiguration” section on page 3-66.
If correcting the settings for the SS7 signaling service clears the alarm, the procedure is complete.
Otherwise, proceed to Step 5.
Step 5 Contact the Cisco TAC to analyze the problem further and to determine a solution. For more information
about contacting the Cisco TAC, see the “Obtaining Documentation and Submitting a Service Request”
section on page xviii.
SS7 SIG SRVC UNAVAIL
The identified SS7 signaling service is unavailable.
Corrective Action
To correct the problem, perform the following steps:
Step 1 To collect system data, see the method that is described in the “Collecting System Data for Cisco TAC”
section on page 6-93.
Step 2 Perform the MML command rtrv-dest on the SS7PATH or SS7SUBSYS object.
If the state is OOS,FLD, the signaling service is out of service because of failure of the MTP3 transport.
Enter the MML command a prov-rtrv:SS7PATH or a prov-rtrv:SS7SUBSYS on the signaling service
object.
a. If the object has an OPC attribute defined, the signaling service is using Cisco ITP-Ls for SS7
communication. The MTP3 layer is on the Cisco PGW 2200 Softswitch. Examine the SS7ROUTEs
and LINKSETs to determine the cause of the failure.
b. If the object does not have an OPC attribute defined, the signaling service is using ITPs for SS7
communication. The MTP3 layer is one of the ITPs. Examine the M3UAROUTEs that have the same
OPC and DPC as SS7PATH or the SUAROUTEs that have the same OPC, APC, and REMOTE SSN
to determine which ITP EXTNODEs the signaling service uses. Consult the ITP documentation and
debug the problem on the ITPs.
If the state is OOS, FLD&UPU, the signaling service is out of service because of failure of the user part
layer at the destination. Examine the remote destination to determine the cause of the failure.
Step 3 Contact the Cisco TAC to analyze the problem further and to determine a solution. For more information
about contacting the Cisco TAC, see the “Obtaining Documentation and Submitting a Service Request”
section on page xviii.