With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cmlrInstSriSmCounts
Cisco Multi-layer Routing Inst Sri Sm Counts
1.3.6.1.4.1.9.9.396.1.1.1.10
Count of message signal units with operation type GSM-MAP SRI-SM.
Back to CISCO-ITP-MLR-MIB MIB page.
IPHost Network monitor allows you to monitor cmlrInstSriSmCounts on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.