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tcp-mss (Protocols BGP)


Hierarchy Level


Configure the maximum segment size (MSS) for the TCP connection for BGP neighbors.

The MSS is only valid in increments of 2 KB. The value used is based on the value set, but is rounded down to the nearest multiple of 2048.



MSS for the TCP connection.

  • Range: 1 through 4096

Required Privilege Level

routing—To view this statement in the configuration.

routing-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 8.1.