Rebooting into Maintenance Mode

The config-system-maintenance command provides two methods for you to access the maintenance mode. The first is to use the enable parameter, which puts the device into maintenance mode after a specified convergence time. The second method, avaliable only on the SLX-9250, uses the enable-on-reboot command, allowing the device to enter maintenance mode upon reboot. Use of this command does not disturb the current operation of the device.

Maintenance mode provides graceful traffic diversion to alternative traffic paths, helping to minimize traffic loss during such planned operations. When an alternative path is available, the BGP and MCT protocols redirect traffic away from the node that is going into maintenance mode. When maintenance mode is enabled, all protocols that are running on the maintenance mode node are notified and redirection of traffic (convergence) begins in stages.

Use the enable-on-reboot command to enable the device to come up in maintenance mode after a reboot. This process allows any network errors detected with Extreme Fabric Automation (EFA) to be addressed. After the errors have been resolved, the device can be added back to the network.

Note

The enable-on-reboot command is supported on the SLX 9250.

The following example enables system reboot into maintenance mode

device# configure terminal
device(config)# system
device(config-system)# maintenance
device(config-system-maintenance)# enable-on-reboot

Use the enable parameter with a specified convergence time, to put the device into maintenance mode without a reboot.

device# configure terminal
device(config)# system
device(config-system)# maintenance
device(config-system-maintenance)# enable
device(config-system-maintenance)# convergence-time 120