单项选择题
A. hello B. keepalive C. BGP open D. notification
Once the TCP connection is established, which message t...
单项选择题Once the TCP connection is established, which message type initiates the BGP peering process?（）
A. Open B. Active C. Update D. Notification
Which message is used to transport routing information ...
单项选择题Which message is used to transport routing information between BGP peers?（）
A. Open B. Active C. Update D. Keepalive
Which three BGP states follow the successful completion...
多项选择题Which three BGP states follow the successful completion of the underlying TCP connectivity? （）(Choose three.)
A.Idle B.Connect C.Open Sent D.Established E.Open Confirm
