Refer to the exhibit, which shows the output of a BGP debug command. Why has the local router at 172.16.23.58 been unable to establish adjacency with its only neighbor?

Question

Exhibit

Options

• AThe local router has not received a keepalive message from the neighbor.
• BThere is no active route to the BGP neighbor.
• CThe local router has not received a SYN/ACK packet from the neighbor.
• DThe local router has not received an OPEN message from the neighbor.

• A
  31% (19)
• B
  8% (5)
• C
  44% (27)
• D
  18% (11)

Explanation

In BGP's Connect state the router has sent the initial TCP SYN but hasn't received the SYN/ACK from its peer, so the TCP handshake never completes and adjacency can't form.

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