LLDP and CDP
- Protocols used to map/discover devices on L2.
- CDP - Cisco discovery protocol
- LLDP - Link Layer discovery protocol.
- Software on Linux
- ladvd - advertise host details on cdp and lldp so switches can see device.
- lldpd - lldp deamon
- cdpr - tool to capture and display incoming CDP packets from switches etc.
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