Manual

Support for QSIG Over BRI and Q.931 Over BRI Backhaul
Provisioning Tasks
31
Cisco MGC Software Release 9.5(2)
All ISDN BRI IP Conn Fail
This alarm occurs when all IP connections supporting an QSIG/Q.931 Over BRI Backhaul signaling
service has failed.
Corrective Action
To correct the problem identified by this alarm, perform the following steps:
Step 1 Determine the health of the associated media gateway using the procedures in the user documentation
for the media gateway.
If the media gateway is working correctly, proceed to Step 2.
If the media gateway is not healthy, restore it using the procedures in the user documentation for the
media gateway. If those procedures restore the media gateway and this alarm clears, the procedure is
complete. Otherwise, proceed to Step 2.
Step 2 Verify the functioning of the cabling between the Cisco MGC and the switch.
If the cables are functioning properly, proceed to Step 3.
If you find bad cable(s), replace them. If that resolves the problem, the procedure is complete. Otherwise,
proceed to Step 3.
Step 3 Verify the functioning of the associated switch. Refer to the documentation for your switch for the
necessary steps.
If the switch is functioning properly, proceed to Step 4.
If the switch is not functioning properly, refer to the appropriate troubleshooting procedures in the
documentation for the switch. If that corrects the problem, the procedure is complete. Otherwise,
proceed to Step 6.
Step 4 Check the IP connectivity between the Cisco MGC and the associated Cisco BRI voice gateway.
If the IP connectivity is good, proceed to Step 5.
If the IP connectivity is bad, restore the IP connectivity. If the alarm clears after the IP connectivity is
restored, the procedure is complete. Otherwise, proceed to Step 5.
Step 5 Verify the provisioning data for your QSIG/Q.931 Over BRI Backhaul backhaul connection.
If the provisioning data is correct, proceed to Step 6.
If the provisioning data is not correct, modify the incorrect data using the procedures defined in the
“Modifying QSIG/Q.931 Over BRI Backhaul Components” section on page 20. If that corrects the
problem, the procedure is complete. Otherwise, proceed to Step 6.
Step 6 Contact the Cisco TAC to further analyze the problem and determine a solution. For more information
about contacting the Cisco TAC, refer to the “Obtaining Technical Assistance” section on page 56.
Signaling Channel Troubleshooting Procedures
The following signaling channel troubleshooting procedures are used for this feature:
• Setting the Service State of a Signaling Service, page 32
• Setting the Service State of an IP Route, page 32
• Setting the Service State of a D-Channel, page 33