QuestionQ22

Routing

Refer to the exhibit. The output of the get router info bgp summary command is displayed.

Question Image

Which statement about the adjacencies between the local router and its neighbors is correct?

  • A The local router and neighbor 100.64.2.254 are unable to establish adjacency because AS 100 is already used by neighbor 100.64.1.254.
  • B The local router and neighbor 100.64.2.254 are unable to establish adjacency until the adjacency with neighbor 100.64.1.254 ceases.
  • C The local router and neighbor 100.64.2.254 are unable to establish adjacency because the TCP session could not be established.
  • D The local router and neighbor 100.64.1.254 established adjacency because the priority of 100.64.1.254 is higher than that of 100.64.2.254.
Explanation

A BGP neighbor in the Active state has initiated a TCP connection but has received no response, so the TCP session and therefore the BGP adjacency are not established. BGP permits multiple configured neighbors in the same remote AS; one established adjacency does not prevent another, and BGP does not use neighbor priority to establish adjacencies.

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