Supported Platforms
request chassis sfm master switch
Syntax
Release Information
Command introduced before Junos OS Release 7.4.
Description
(M40e and M160 routers only) Control which Switching and Forwarding Module (SFM) is master.
Options
no-confirm | — | (Optional) Do not display a switch warning or query. |
Additional Information
By default, the SFM in slot 0 (SFM0) is the master and the SFM in slot 1 (SFM1) is the backup. If you use this command to change the master, and then restart the chassis software for any reason, the master reverts to the default setting. 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 OS System Basics Configuration Guide.
All installed SFMs are always working together to forward packets. If an SFM fails, the other SFMs take over and traffic continues to flow uninterrupted.
Required Privilege Level
maintenance
List of Sample Output
request chassis sfm master switchrequest chassis sfm master switch no-confirm
Output Fields
When you enter this command, you are provided feedback on the status of your request.
Sample Output
request chassis sfm master switch
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
request chassis sfm master switch no-confirm
user@host> request chassis sfm master switch
no-confirm Switch initiated, use “show chassis sfm” to verify
