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Question 44 - JN0-682 discussion

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What is an advantage that EVPN has over VPLS when used for DCI?

A.
mass MAC withdrawal
Answers
A.
mass MAC withdrawal
B.
transparent BPDU transport
Answers
B.
transparent BPDU transport
C.
active/standby multihoming
Answers
C.
active/standby multihoming
D.
reverse path forwarding
Answers
D.
reverse path forwarding
Suggested answer: A

Explanation:

One of the primary advantages of EVPN (Ethernet VPN) over VPLS (Virtual Private LAN Service) is the capability of mass MAC withdrawal (A). This feature allows EVPN to quickly remove MAC addresses from the forwarding database when a link or node fails, improving convergence times and network stability. In contrast, VPLS lacks this efficient mechanism for withdrawing MAC addresses en masse, which can lead to slower convergence and potential traffic blackholing in the event of network changes or failures.

Reference:

Juniper Networks - EVPN Overview

Understanding EVPN

asked 18/09/2024
Yuri Mitrofanov
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