user@switch> request virtual-chassis vc-port set pic-slot 2 port 0
The VCPs automatically bundle into a Link Aggregation Group when two or more
interfaces of the same speed are configured into VCPs between the same two member
switches. See Understanding Virtual Chassis Port Link Aggregation.
NOTE: You cannot modify the mastership priority when you are using a
preprovisioned configuration. The mastership priority values are generated
automatically and controlled by the role that is assigned to the member
switch in the configuration file. The two Routing Engines are assigned the
same mastership priority value. However, the member that was powered on
first has higher prioritization according to the master election algorithm. See
Understanding How the Master in a Virtual Chassis Is Elected.
NOTE: If you want to change the member ID of a preprovisioned member
switch later, you must re-configure the member information forthat member
switch using the member configuration statement. For example, to
re-configure member 3 (which has serial number “jkl012”) to have 6 as its
newmember ID,youassociate member ID 6 with the serial number ofmember
3, and then delete the configuration item for member ID 3, as follows:
[edit virtual-chassis]
user@switch# set member 6 serial-number jkl012
user@switch# delete member 3
The request virtual-chassis renumber command can only be used to change
a Virtual Chassis member ID in a nonprovisioned Virtual Chassis.
Configuring a QFX Series Virtual Chassis with a Nonprovisioned Configuration File
You can use nonprovisioned configuration to configure a QFX Series Virtual Chassis.
To configure the Virtual Chassis using a nonprovisioned configuration:
NOTE: You can configure a QFX Series Virtual Chassis while the cables are
or are not physically connected.
1. Power on only the switch that you plan to use as the master switch.
2. (Required for a mixed Virtual Chassis only) Set the master switch into mixed mode
and reboot the switch to complete the configuration:
Copyright © 2017, Juniper Networks, Inc.114
QFX3500 Device Hardware Documentation
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