With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cseCefAdjacencyEncap
CISCO SWITCH ENGINE Cef Adjacency Encap
1.3.6.1.4.1.9.9.97.1.8.3.1.9
Indicates the next hop destination encapsulation type. arpa(1) indicates that next hop destination used ARPA encapsulation type to forward packets. raw(2) indicates that next hop destination used RAW encapsulation type to forward packets. sap(3) indicates that next hop destination used SAP encapsulation type to forward packets. snap(4) indicates that next hop destination used SNAP encapsulation type to forward packets.
Back to CISCO-SWITCH-ENGINE-MIB MIB page.
IPHost Network monitor allows you to monitor cseCefAdjacencyEncap 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.