An engineer configures interface Gi1/0 on the company PE router to connect to an ISP Neighbor discovery is disabled. Which action is necessary to complete the configuration if the ISP uses third-party

The correct answer is A. Enable LLDP globally. LDDP-MED is used only between network devices (such as switches) and endpoint devices (such as phones). For network-to-network connections, LLDP is used. Check table 2, protocol uses:

Submitted by hassan_iq· Mar 5, 2026

Question

An engineer configures interface Gi1/0 on the company PE router to connect to an ISP Neighbor discovery is disabled. Which action is necessary to complete the configuration if the ISP uses third-party network devices?

Options

AEnable LLDP globally
BDisable autonegotiation
CDisable Cisco Discovery Protocol on the interface
DEnable LLDP-MED on the ISP device

How the community answered

(57 responses)

A
72% (41)
B
4% (2)
C
9% (5)
D
16% (9)

Explanation

LDDP-MED is used only between network devices (such as switches) and endpoint devices (such as phones). For network-to-network connections, LLDP is used. Check table 2, protocol uses:

Topics

#LLDP#CDP#Neighbor discovery#Interface configuration

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