With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cdsmrInstTimeOuts
Cisco Distributed Short Message Routing Inst Time Outs
1.3.6.1.4.1.9.9.1300.1.2.1.20
Count of the number of times packet was not delivered due to timeout.
Back to CISCO-ITP-DSMR-MIB MIB page.
IPHost Network monitor allows you to monitor cdsmrInstTimeOuts on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.