Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?


control-word (Protocols Layer 2 VPN)


Hierarchy Level


Specify the control word. The control word is 4 bytes long and is inserted between the Layer 2 protocol data unit (PDU) being transported and the virtual connection (VC) label that is used for demultiplexing.


The following configuration statements are ignored for time-division multiplexing pseudowires at the [edit protocols l2vpn] hierarchy level:

  • control-word

  • no-control-word


The control word is enabled by default. You can also configure the control word explicitly using the control-word statement.

Required Privilege Level

routing—To view this statement in the configuration.

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

Release Information

Statement introduced before Junos OS Release 7.4.