Use of CDP and LLDP

Networking
1

Why CDP or LLDP is require ?

2

Why is CDP require?
Ans-Cisco Discovery Protocol is a Layer 2, media-independent, and network-independent protocol that networking applications use to learn about nearby, directly connected devices. Cisco Discovery Protocol is enabled by default.

Please use the below link for more reference.

Cisco Discovery Protocol Configuration Guide, Cisco IOS Release 15M&T - Cisco Discovery Protocol Version 2 [Support] - Cisco

3

To discover directly connected neighbor devices. very important protocol

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