control-word

Syntax

(control-word | no-control-word); 

Hierarchy Level

[edit logical-routers logical-router-name routing-instances routing-instance-name 
protocols l2vpn],

[edit routing-instances routing-instance-name protocols l2vpn]

Release Information

Statement introduced before JUNOS Release 7.4.

Description

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.

• control-word—Enables the use of the control word.
  Default: The control word is enabled by default. You can also configure the control word explicitly using the control-word statement.
• no-control-word—Disables the use of the control word.

Usage Guidelines

See Disabling the Control Word for Layer 2 VPNs.

Required Privilege Level

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