With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cgsp2EventMtp3Timestamp
Cisco IP Transfer Point GSP2 Event Mtp3 Timestamp
1.3.6.1.4.1.9.9.332.1.1.4.1.3
The value of sysUpTime at the time of the event was received by MTP3 layer.
Back to CISCO-ITP-GSP2-MIB MIB page.
IPHost Network monitor allows you to monitor cgsp2EventMtp3Timestamp 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.