With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
msdpRequestsTable
msdp Requests Table
1.3.6.1.3.92.1.1.4
The (conceptual) table listing group ranges and MSDP peers used when deciding where to send an SA Request message when required. If SA Caching is enabled, this table may be empty.
Back to DRAFT-MSDP-MIB MIB page.
IPHost Network monitor allows you to monitor msdpRequestsTable 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.