With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
rsvpSenderInterface
rsvp Sender Interface
1.3.6.1.2.1.51.1.2.1.13
The ifIndex value of the interface on which this PATH message was most recently received.
Back to RSVP-MIB MIB page.
IPHost Network monitor allows you to monitor rsvpSenderInterface on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.