With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cagwMsgTable
Cisco's ASN Gateway Message Table
1.3.6.1.4.1.9.9.638.1.3.3.1
The Message Table contains Statistics about all message types in the R6 protocol.
Back to CISCO-ASN-GATEWAY-MIB MIB page.
IPHost Network monitor allows you to monitor cagwMsgTable 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.