With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
rsvpResvInterface
rsvp Resv Interface
1.3.6.1.2.1.51.1.4.1.12
The ifIndex value of the interface on which this RESV message was most recently received.
Back to RSVP-MIB MIB page.
IPHost Network monitor allows you to monitor rsvpResvInterface on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.