With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
msdpEnabled
msdp Enabled
1.3.6.1.3.92.1.1.1
The state of MSDP on this MSDP speaker - globally enabled or disabled.
Back to DRAFT-MSDP-MIB MIB page.
IPHost Network monitor allows you to monitor msdpEnabled on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.