With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
msdpPeerInDataPackets
msdp Peer In Data Packets
1.3.6.1.3.92.1.1.5.1.13
The total number of encapsulated data packets received from this peer. This object should be initialized to zero when the connection is established.
Back to DRAFT-MSDP-MIB MIB page.
IPHost Network monitor allows you to monitor msdpPeerInDataPackets on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.