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
Resolving SS7 Network Related Problems
Step 7 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 Load Sharing Malfunction
If load sharing on your SS7 links or routes is not working properly, perform the following steps:
Step 1 If you have not already collected system data, refer to the method that is described in the “Collecting
System Data for Cisco TAC” section on page 6-93.
Step 2 Log in to the active Cisco PGW 2200 Softswitch, start an MML session, and enter the
prov-rtrv:c7iplnk:“all” command to verify the priority settings of the SS7 links.
The system returns a response like the following:
MGC-02 - Media Gateway Controller 2001-07-24 12:11:44
M RTRV
"session=active:c7iplnk"
/*
NAME LNKSET PRI SLC TIMESLOT SESSIONSET
---- ------ --- --- -------- -----------
ls1link1 ls1 1 0 0 c7-slt1
ls1link2 ls1 1 1 0 c7-slt2
The PRI field in the response shows the priority settings for your SS7 links. For load sharing to work
properly, the priority settings for all of the links should be set to 1.
Step 3 Enter the prov-rtrv:ss7route:“all” command to verify the priority settings of the SS7 routes.
The system returns a response like the following:
MGC-02 - Media Gateway Controller 2001-07-24 12:25:05
M RTRV
"session=active:ss7route"
/*
NAME OPC DPC LNKSET PRI
---- --- --- ------ ---
route1 opc1 dpc1 ls1 1
rout2 opc1 dpc2 ls2 1
rt3 opc2 scp2 ls-itu 1
rt1 opc2 stp1 ls-itu 1
rt2 opc2 scp1 ls-itu 1
*/
The PRI field in the response shows the priority settings for the SS7 routes. For load sharing to work
properly, the priority settings for all of the routes should be set to 1.
Step 4 Start a provisioning session, as described in “Starting a Provisioning Session” section on page 3-64.
Step 5 If any of the SS7 links show a priority other than 1, change the priority settings to ensure proper link
load sharing. Before changing the priority settings for the link, take the link out-of-service, as described
in the “Setting the Service State of a C7/SS7 Link or Linkset” section on page 6-105.