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JN0-663 Exam - Question 71


You must deploy an interprovider VPN option that ensures that the ASBRs do not need to store any VPN routes.

In this scenario, which interprovider VPN option should you choose?

Show Answer
Correct Answer: D

In an interprovider VPN, when the requirement is that the ASBRs (Autonomous System Boundary Routers) do not store any VPN routes, the most suitable approach is Interprovider Option C. In Interprovider Option C, the ASBRs exchange labeled IPv4 routes instead of VPN-IPv4 routes, effectively ensuring that the ASBRs do not need to maintain any VPN routing tables. The VPN routes are exchanged directly between the end PE (Provider Edge) routers through MP-EBGP sessions, thus avoiding the need for the ASBRs to store VPN routes.

Discussion

8 comments
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vasiliy19Option: D
Jul 7, 2021

D. Option C

anonymonkey
Aug 13, 2021

Option C https://www.juniper.net/documentation/us/en/software/junos/vpn-l3/topics/topic-map/l3-vpns-interprovider.html

oceans1908Option: D
Feb 26, 2022

D Option C

BobbyAxelrodOption: C
May 15, 2022

Agree with anonymonkey

TgDgNUOption: D
Oct 30, 2022

It's Inter-AS option C, and the answer is D: option C

juanangel128
Aug 24, 2021

Extracted from: https://www.juniper.net/documentation/us/en/software/junos/vpn-l3/topics/topic-map/l3-vpns-interprovider.html "Labeled IPv4 (not VPN-IPv4) routes are exchanged by the ASBRs to support MPLS. An MP-EBGP session between the end PE routers is used for the announcement of VPN-IPv4 routes. In this manner, VPN connectivity is provided while keeping VPN-IPv4 routes out of the core network.[...]".

mohdemaOption: D
Dec 2, 2022

it's option C !!!

guesswho123Option: D
Dec 5, 2022

100% people are saying Option C, which means d: Option C

ztw3587tOption: D
Jun 2, 2023

D is correct. The options C interprovider VPN.