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Configuring Redundancy Fabric Mode for Active Control Boards on MX Series Routers

You can configure the active control board to be in redundancy mode or in increased fabric bandwidth mode. You can enable increased fabric bandwidth of active control boards for optimal and efficient performance and traffic handling by configuring the active control boards to be in redundancy mode. To configure redundancy mode for the active control board, use the redundancy-mode redundant statement at the [edit chassis fabric] hierarchy level:

[edit chassis fabric]
redundancy-mode {redundant;}

When you configure this option, all the FPCs use 4 fabric planes as active planes, regardless of the type of the FPC. If you do not configure this option, increased fabric bandwidth mode is enabled by default on MX routers.

To configure increased bandwidth mode for the active control board, use the redundancy-mode increased-bandwidth statement at the [edit chassis fabric] hierarchy level:

[edit chassis fabric]
redundancy-mode {increased-bandwidth;}

In increased fabric bandwidth mode, MX Series routers will use 6 active planes. MX240 and MX480 routers will also use 2 spare planes in addition to the 6 active planes.

Increased fabric bandwidth mode is enabled by default on MX routers with Switch Control Board (SCB). On MX routers that contain the enhanced SCB with Trio chips and the MPC3E, redundancy mode is enabled by default.

Configuring this feature does not affect the system. You can configure this feature without restarting the FPC or restarting the system.

 

Related Documentation

 

Published: 2013-08-26

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