•
If you are expanding a preprovisioned configuration, edited the existing Virtual Chassis
configuration to include the serial number of the new member switch. The parameters
specified in the master Virtual Chassis configuration file are applied to the new switch
after it has been interconnected to an 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.
•
(Optional)Configured Ethernet interfaces on different member switches into the same
LAG.. See Example: Configuring Aggregated Ethernet High-Speed Uplinks Between an
EX4200 Virtual Chassis Access Switch and an EX4200 Virtual Chassis Distribution Switch
An active member switch might temporarily go down before coming back up as part
of this procedure. Having traffic load-balanced across member switches using a LAG
helps alleviate traffic loss during this procedure.
To add a new member switch to an existing Virtual Chassis configuration within the same
wiring closet:
1. If the new member switch has been previously configured, revert that switch’s
configuration to the factory defaults. See Reverting to the Default Factory Configuration
for the EX Series Switch.
2. Interconnect the unpowered new switchtoone member of the existingVirtual Chassis
configuration using the dedicated Virtual Chassis ports (VCPs). Connect only one VCP
on the unpowered new switch to a VCP on a member switch in the existing Virtual
Chassis at this point of the procedure.
3. Power on the new switch.
4. Confirm that the new member switch is now included within the Virtual Chassis
configuration by checking the front-panel LCD for the member ID. It should display a
member ID that is greater than 0 (1 through 9), because there is already at least one
member of the Virtual Chassis configuration.
NOTE: If you are using a preprovisioned configuration, the member ID is
automatically assigned tothe member’s serial number in the configuration
file.
5. Cable the other dedicated VCP on the new member switch to the Virtual Chassis.
CAUTION: If you immediately cable both VCPs on the new switch into the
existing Virtual Chassis at the same time, a member switch that was
already part of the Virtual Chassis might become nonoperational for
Copyright © 2017, Juniper Networks, Inc.204
EX4200 Switch Hardware Guide
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