CCNP R&S Question of the Week: Directly Connected CDP Devices

In a multi-vendors switch implementation, a network engineer notices that directly connected devices that use CDP are not visible.  Which standard protocol could be used to resolve this issue?

A. Local Area Mobility
B. Link Layer Discovery Protocol
C. NetFlow
D. Logical Link Discovery Protocol

Reveal Answer

Answer: B.

The Link Layer Discovery Protocol (LLDP) is defined in the IEEE 802.1AB standard for link layer protocol in the Internet Protocol Suite used by network devices for advertising their identity, capabilities and neighbors on an IEEE 802 local area network, principally wired Ethernet. LLDP functions in a similar way as several proprietary protocols, such as the Cisco Discovery Protocol (CDP).

 

Related Courses
ROUTE – Implementing Cisco IP Routing v2.0
SWITCH – Implementing Cisco IP Switched Networks v2.0
TSHOOT – Troubleshooting and Maintaining Cisco IP Networks v2.0

Related Certification
CCNP Routing and Switching

CCNP R&S Question of the Week Series

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• CCNP R&S Question of the Week: clear ip route
• CCNP R&S Question of the Week: IPv6 Traffic Filter Impact
• CCNP R&S Question of the Week: EtherChannel
• CCNP R&S Question of the Week: Interface FastEthernet0/1
• CCNP R&S Question of the Week: Directly Connected CDP Devices

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