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
Note See Cisco Signaling Link Terminal for more information on the parameters for this command.
In the following example, the aligned/ready timer duration on channel 0 is set to 30,000 ms:
Router(config)# ss7 mtp2-variant Bellcore 0
Router(config-Bellcore)# T1 30000
In the following example, the aligned/ready timer is restored to its default value of 13,000 ms:
Router(config)# ss7 mtp2-variant Bellcore 0
Router(config-Bellcore)# no T1
After the modification is complete, verify the new settings according to the procedure in the “Verifying
MTP2 Timers” section on page 6-108.
Verifying and Modifying MTP3 Timer Settings
When resolving signaling problems between the Cisco PGW 2200 Softswitch and an associated SS7
network element (such as an STP), you might need to verify that the Cisco PGW 2200 Softswitch MTP3
timer settings conform to settings on the associated SS7 network element. If the settings do not match,
you must modify the settings for the MTP3 timers.
Note See Cisco PGW 2200 Softswitch Release 9.8 Provisioning Guide for more information on the MTP
timers.
To verify and modify the values that are used for the MTP3 timers, complete the following steps:
Step 1 Log on to active Cisco PGW 2200 Softswitch, start an MML session, and enter the
prov-rtrv:sigsvcprop:name=“protocol” command to display the settings for the MTP3 timers.
Where:
protocol is the MML name for the SS7 protocol family being used, such as SS7-ANSI or SS7-ITU.
The system returns a message like the following:
MGC-01 - Media Gateway Controller 2001-06-01 10:31:00
M RTRV
"session=active:lnksetprop"
/*
mtp2AermEmgThr = 1
mtp2AermNrmThr = 4
mtp2CongDiscard = false
mtp2LssuLen = 1
mtp2MaxAlignRetries = 5
mtp2MaxMsuFrmLen = 272
mtp2MaxOutsFrames = 127
mtp2ProvingEmgT4 = 6
mtp2ProvingNormalT4 = 23
mtp2SuermThr = 64
mtp2T1 = 130
mtp2T2 = 115
mtp2T3 = 115
mtp2T5 = 1
mtp2T6 = 30
mtp2T7 = 10