With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cbgpPeer2CapIndex
CISCO BGP4 Peer2 Capability Index
1.3.6.1.4.1.9.9.187.1.2.6.1.2
Multiple instances of a given capability may be sent by a BGP speaker. This variable is used to index them.
Back to CISCO-BGP4-MIB MIB page.
IPHost Network monitor allows you to monitor cbgpPeer2CapIndex on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.