Orion NPM is able to poll CAM tables from devices using SNMP. Information is stored in NodeL2Connections table in Orion Database. Orion uses this information for topology calculation. Table should be also exposed via SWIS, so you should be able to use Custom Query Resource to display the data. Available pollers for getting CAM/Bridge table information for Nodes are (both are displayed as L2 Topology pollers on List Resources):
N.Topology_Layer2.SNMP.Dot1dTpFdb
Topology poller for L2 entries gathering accross all VLANs for devices which support BRIDGE-MIB and SNMP community string based indexing. Poller utilizes GetTable request to gather Port IDs, MAC addresses and Statuses using OID:
dot1dTpFdbTable = 1.3.6.1.2.1.17.4.3
Port IDs are received from:
dot1dTpFdbPort = 1.3.6.1.2.1.17.4.3.1.2
MAC addresses are received from:
dot1dTpFdbAddress = 1.3.6.1.2.1.17.4.3.1.1
Statuses are received from:
dot1dTpFdbStatus = 1.3.6.1.2.1.17.4.3.1.3
N.Topology_Layer2.SNMP.Dot1qTpFdb
Topology poller for L2 entries gathering accross all VLANs for devices which support Q-BRIDGE-MIB and SNMP community string based indexing. Poller utilizes GetTable request to gather Port IDs, MAC addresses and Statuses using OID:
dot1qTpFdbTable = 1.3.6.1.2.1.17.7.1.2.2
Port IDs are received from:
dot1qTpFdbPort = 1.3.6.1.2.1.17.7.1.2.2.1.2
MAC Addresses are received from:
dot1qTpFdbAddress = 1.3.6.1.2.1.17.7.1.2.2.1.1
Statuses are received from
dot1qTpFdbStatus = 1.3.6.1.2.1.17.7.1.2.2.1.3
Both pollers have also variants for devices which do not support community string indexing, those just have "NoVlans" suffixes in poller names.
