Which BGP attribute is used by BGP to prevent routing loops?
Select the best response.
A.
AS-path
B.
next-hop
C.
MED
D.
weight
E.
local preference
F.
origin
Get 50% Discount on All Your Purchases
at PrepAway.com - Latest Exam Questions
This is ONE TIME OFFER
50%
Answer: A
Explanation
The AS-PATH attribute is used to prevent BGP routing loops. When receiving an BGP advertisement, the router checks the AS-PATH attribute, if it see it’s own AS number in the AS-Path then it is a routing loop so the router will not install this route in its BGP table.
0
0