Juniper JUNOS OS 10.3 - SOFTWARE Manual page 1114

Complete Software Guide for Junos
Adding a New Switch from a Different Wiring Closet to an Existing Virtual Chassis Configuration
1018
®
OS for EX Series Ethernet Switches, Release 10.3
NOTE: If you are using a preprovisioned configuration, the member ID is
automatically assigned to the member's serial number in the configuration
file.
To add a new switch from a different wiring closet to an existing Virtual Chassis
configuration, you must use a long cable to connect the new member switch across
wiring closets. You can use a port on an SFP, SFP+ or XFP uplink module, or an SFP
network port on an EX4200-24F switch, and a fiber-optic cable for this purpose.
Before you begin, be sure you have:
Installed the uplink modules needed for the Virtual Chassis configuration.
Mounted the new switch in a rack.
If the new member switch has been previously configured, reverted its configuration
to the factory defaults. See "Reverting to the Default Factory Configuration for the EX
Series Switch" on page 427.
Powered on the new member switch as a standalone switch and configured its uplink
module ports as VCPs. Otherwise, it cannot be recognized as a member switch by the
master.
If you are expanding a preprovisioned configuration, made a note of the serial number
(on the back of the switch). You will need to edit the Virtual Chassis configuration to
include the serial number of the new member switch.
If you are expanding a preprovisioned configuration, edited the existing Virtual Chassis
configuration to include the serial number of the new member switch. You can specify
the role of the new member switch when you add its serial number in the Virtual Chassis
configuration file. The parameters specified in the master Virtual Chassis configuration
file are applied after the new member switch has been interconnected with its uplink
VCP to an existing member switch.
Confirmed that the new, currently standalone switch is powered off.
Prepared an existing member switch for interconnecting with the new switch through
an uplink module port by configuring an uplink module port as a VCP on the existing
member switch.
NOTE: After you have created a preprovisioned Virtual Chassis
configuration, you can use the autoprovisioning feature to add member
switches to that configuration.
To add a new member switch that is going to be interconnected with the existing Virtual
Chassis configuration across wiring closets:
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