Troubleshooting guide

6-109
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
The system returns a message like the following:
MGC-01 - Media Gateway Controller 2000-07-27 18:33:56
M RTRV
"session=nsite04:sigsvcprop"
/*
mtp3ApcMtpRstrtT28 = 50
mtp3DlnkConnAckT7 = 10
mtp3FrcUnhT13 = 10
mtp3InhAckT14 = 20
mtp3LocInhTstT20 = 900
mtp3MaxSltTries = 2
mtp3MsgPriority = 2
mtp3MtpRstrtT24 = 60
mtp3RepeatRstrtT26 = 150
mtp3TfrUsed = false
mtp3TraSnT29 = 600
mtp3tstSltmT1 = 60
mtp3tstSltmT2 = 600
mtp3UnhAckTl2 = 10
reference = ANSI96
Step 2 Compare the listed MTP3 timers settings to the MTP3 timers that are used at the associated destination.
If the MTP3 timers settings match, the timer settings are not causing the signaling problem. Continue
troubleshooting the problem.
Modifying Configurable Timers
In earlier releases of the Cisco PGW 2200 Softswitch software, you could not modify the settings of the
message transfer part level 3 (MTP3) and redundant link manager (RLM) timers. You can modify the
settings of these timers. The following sections describe the procedures for verifying and modifying the
timers:
• Modifying MTP2 Timers, page 6-109
• Verifying and Modifying MTP3 Timer Settings, page 6-110
• Verifying and Modifying RLM Timers, page 6-112
• Verifying and Modifying ISUP Timer Settings, page 6-113
• Rebooting Your System to Modify Properties, page 6-117
Modifying MTP2 Timers
Use the following MML commands at the Cisco ITP-L to modify the settings for the MTP2 timers:
Router (config)#ss7 mtp-variant standard channel
Router(config- standard )# parameters
Where:
• standard—Name of the SS7 standard that is used for your links. Valid values are Bellcore, ITU,
NTT, and TTC
• channel—Specifies a channel, 0 through 3
• parameters—Timer number and the new value for the timer