Which reliability protocol does BGP use when establishing a neighbor adjacency?

ITExamAnswers Editorial Team Last Updated: Jun 29, 2026

IT Exam Items Repository › Category: CCNP ENARSI v9 › Which reliability protocol does BGP use when establishing a neighbor adjacency?

Which reliability protocol does BGP use when establishing a neighbor adjacency?

TCP
UDP
RTP
DSCP

Explanation: BGP uses standard TCP (port 179) as its reliable transport mechanism. Because TCP handles error checking, sequencing, and acknowledgment, BGP does not need to implement its own reliability protocol for managing update exchanges.

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