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sfm (Chassis Redundancy)

Syntax

Hierarchy Level

Description

On M40e and M160 routers, configure which Switching and Forwarding Module (SFM) is the primary and which is the backup.

Default

By default, the SFM in slot 0 is the primary and the SFM in slot 1 is the backup.

Options

slot-number—Specify which slot is the primary and which is the backup. On the M40e router, slot-number can be 0 or 1. On the M160 router, slot-number can be 0 through 3.

always—Define this SFM as the sole device.

preferred—Define this SFM as the preferred device of at least two.

Required Privilege Level

interface—To view this statement in the configuration.

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

Release Information

Statement introduced before Junos OS Release 7.4.