| Exam 400-101 | Question id=158 | Layer 2 Technologies |
After the implementation of several different types of switches from different vendors, a network engineer notices that directly connected devices that use Cisco Discovery Protocol are not visible. Which vendor-neutral protocol could be used to resolve this issue?
| A. |
Local Area Mobility | |
| B. |
Link Layer Discovery Protocol | |
| C. |
NetFlow | |
| D. |
Directed Response Protocol |
The Link Layer Discovery Protocol (LLDP) is a vendor-neutral link layer protocol used by network devices for advertising their identity, capabilities, and neighbors on local area network
LLDP performs functions similar to several proprietary protocols, such as the Cisco Discovery Protocol (CDP), Extreme Discovery Protocol, Foundry Discovery Protocol (FDP), Nortel Discovery Protocol (also known as SONMP), and Microsoft's Link Layer Topology Discovery (LLTD).