Technical Documentation

Configuring the JUNOS Software to Make an SFM Stay Offline

By default, if you use the request chassis sfm CLI command to take an 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: 2010-01-15