With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
rsvpSessionEntry
rsvp Session Entry
1.3.6.1.2.1.51.1.1.1
A single session seen by a given system.
Back to RSVP-MIB MIB page.
IPHost Network monitor allows you to monitor rsvpSessionEntry on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.