Day 5. CDP and LLDP
CCNA 200-301 Exam Topics
Configure and verify Layer 2 discovery protocols (Cisco Discovery Protocol and LLDP).
Key Topics
Cisco Discovery Protocol (CDP) is a Cisco-proprietary Layer 2 protocol used to gather information about Cisco devices on the same data link. Cisco devices also support Link Layer Discovery Protocol (LLDP), which is a standards-based neighbor discovery protocol similar to CDP. Today we review the configuration and verification of CDP and LLDP.
CDP Overview
As Figure 5-1 shows, CDP sends advertisements to directly connected devices.
Figure 5-1 CDP Sends Advertisements Between Directly Connected Devices
CDP runs on all Cisco-manufactured equipment. It gathers the protocol addresses of neighboring ...
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