To reboot a single cluster element on a COB board, use the rms_boot command.
For example, assume a COB board is installed in slot 3 in a shelf named "everest". To reboot cluster element 5 on that board, issue the following command:
rms_boot 5 3 everest
A timeout indicates issues with connectivity.
A cluster element warm reset takes approximately X seconds. Use either the rms_ip or rms_mac command to 'ping' the cluster element to confirm the reboot is complete.