Step 3: Switch SFM Mastership

Purpose

You can switch SFM mastership on M40e routers only. By default, the SFM in slot 0 (SFM0) is the master and the SFM in slot 1 (SFM1) is the backup.

To change the default master SFM, include the sfm statement at the [edit chassis redundancy] hierarchy level in the configuration. For more information, see the JUNOS System Basics Configuration Guide.

Action

To switch SFM mastership, use the following CLI command:

user@host> request chassis sfm master switch <no-confirm>

Sample Output

user@host> request chassis sfm master switch

warning: Traffic will be interrupted while the PFE is re-initialized

Toggle mastership between system forwarding module? [yes,no] (no) yes

Switch initiated, use "show chassis sfm" to verify

The following command output displays if you use the no-confirm option:

user@host> request chassis sfm master switch no-confirm

Switch initiated, use "show chassis sfm" to verify