Cisco Discovery Protocol sensor
The Cisco Discovery Protocol sensor uses the Cisco Discovery Protocol MIB to discover Layer 2 segments on the network.
The CdpSensor discovers cdpCacheDeviceId and cdpCacheDevicePort information and builds the local interface for the peer devices which is used to build the segment.
Sensor name that is used in the GUI and logs
CdpSensor
Object identifiers (OIDs) that are used
The sensor uses the following high-level OIDs to retrieve the attributes:
- Global Device Id : 1.3.6.1.4.1.9.9.23.1.3.4.0
- Cache Device Id : .1.3.6.1.4.1.9.9.23.1.2.1.1.6
- Cache Device Port : .1.3.6.1.4.1.9.9.23.1.2.1.1.7
Model objects created
The sensor creates the following model objects:
- net.L2Interface
- net.Segment
- sys.ComputerSystem