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Configuring the JUNOS Software to Make an SFM Stay Offline

By default, if you use the request chassis sfm CLI command to take a Switching and Forwarding Module (SFM) offline, the SFM attempts to restart when you enter a commit CLI command. To prevent a restart, you can configure an SFM to stay offline. This feature is useful for repair situations.

To configure an SFM to stay offline, include the sfm statement at the [edit chassis] hierarchy level:

[edit chassis]sfm slot-number {power off;}
  • slot number—Slot number in which the SFM is installed.
  • power off—Take the SFM offline and configure it to remain offline.

For example, the following statement takes an SFM in slot 3 offline:

[edit chassis]sfm 3 power off;

Use the show chassis sfm CLI command to confirm the offline status:


user@host# show chassis sfm
                 Temp    CPU Utilization (%) Memory Utilization (%)
Slot    State    (C)     Total   Interrupt   DRAM (MB)   Heap   Buffer
0       Online   34      2       0           64          16     47
1       Online   38      2       0           64          16     47
2       Online   42      2       0           64          16     47
3       Offline --- Configured power off --- 

To bring the SFM back online, delete the edit chassis sfm statement and then commit the configuration.


Published: 2010-04-26

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