Juniper JUNOS OS 10.3 - SOFTWARE Manual page 1139

Remove, Repair, and Reinstall the Same Switch
Remove a Member Switch, Replace with a Different Switch, and Reapply the Old Configuration
Copyright © 2010, Juniper Networks, Inc.
member switch and apply it to a new member switch, or you can free up the member ID
and make it available for assignment to a new member switch.
To replace a member switch, use the procedure that matches what you need to
accomplish:
Remove, Repair, and Reinstall the Same Switch on page 1043
Remove a Member Switch, Replace with a Different Switch, and Reapply the Old
Configuration on page 1043
Remove a Member Switch and Make Its Member ID Available for Reassignment to a
Different Switch on page 1044
If you need to repair a member switch, you can remove it from the Virtual Chassis
configuration without disrupting network service for the other members. The master
stores the configuration of the member ID so that it can be reapplied when the member
switch (with the same base MAC address) is reconnected.
Power off and disconnect the member switch to be repaired.
1.
Repair, as necessary.
2.
Reconnect and power on the member switch.
3.
If you are unable to repair a member switch, you can replace it with a different member
switch and retain the old configuration. The master stores the configuration of the member
that was removed. When you connect a different member switch, the master assigns a
new member ID. But the old configuration is still stored under the previous member ID
of the previous member switch.
NOTE: If you have used a preprovisioned configuration, use the
command to change the serial number in the Virtual Chassis configuration
file. Substitute the serial number of the replacement member switch (on the
back of the switch) for the serial number of the member switch that was
removed.
Power off and disconnect the member switch to be replaced.
1.
If the replacement member switch has been previously configured, revert that switch's
2.
configuration to the factory defaults. See "Reverting to the Default Factory
Configuration for the EX Series Switch" on page 427.
Connect and power on the replacement member switch.
3.
Chapter 46: Verifying Virtual Chassis Configuration
replace
1043