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Question 44 - JN0-664 discussion

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Exhibit

CE-1 must advertise ten subnets to PE-1 using BGP Once CE-1 starts advertising the subnets to PE-1, the BGP peering state changes to Active.

Referring to the CLI output shown in the exhibit, which statement is correct?

A.
CE-1 is advertising its entire routing table.
Answers
A.
CE-1 is advertising its entire routing table.
B.
CE-1 is configured with an incorrect peer AS
Answers
B.
CE-1 is configured with an incorrect peer AS
C.
The prefix limit has been reached on PE-1
Answers
C.
The prefix limit has been reached on PE-1
D.
CE-1 is unreachable
Answers
D.
CE-1 is unreachable
Suggested answer: B

Explanation:

The problem in this scenario is that CE-1 is configured with an incorrect peer AS number for its BGP session with PE-1. The CLI output shows that CE-1 is using AS 65531 as its local AS number and AS 65530 as its peer AS number. However, PE-1 is using AS 65530 as its local AS number and AS 65531 as its peer AS number. This causes a mismatch in the BGP OPEN messages and prevents the BGP session from being established. To solve this problem, CE-1 should configure its peer AS number as 65530 under [edit protocols bgp group external] hierarchy level.

asked 18/09/2024
Vijay Kumar
47 questions
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