1. Make a list of the serial numbers of all the switches to be connected in a Virtual Chassis
configuration.
NOTE: Serial number values are case-sensitive.
2. Note the desired role (routing-engine or line-card) of each switch. If you configure the
member with a routing-engine role, it is eligible to function as the master or backup
Routing Engine . If you configure the member with a line-card role, it is not eligible to
function as the master or backup. See “Understanding QFX Series Virtual Chassis
Components” on page 11 and Understanding Mixed EX Series and QFX Series Virtual
Chassis or Virtual Chassis Fabric for details on which switches are recommended or
required to be configured into each role depending on the types of switches in the
Virtual Chassis.
3. Power on only the switch that you plan to use as the master switch.
4. Specify the identification parameters for the switch by completing the initial
configuration.See “Configuring a QFX3500 Device as a Standalone Switch” on page 105
or Configuring a QFX3600 Device as a Standalone Switch, Configuring a QFX5100
Device, or Configuring a QFX5110.
NOTE: The properties that you specify for the master switch apply to the
entire Virtual Chassis configuration.
5. (Optional) Configure the master switch with the virtual management Ethernet (VME)
interface for out-of-band management of the Virtual Chassis:
user@switch# set interfaces vme unit 0 family inet address /ip-address/mask/
6. (Required for a mixed Virtual Chassis only) Set the master switch into mixed mode
and reboot the switch to complete the configuration:
NOTE: You must complete this step if your Virtual Chassis includes a
combination of different types of switches, except when you are
configuring a Virtual Chassis that includes only QFX3500 and QFX3600
switches or only QFX5110 and QFX5100 switches (which are considered
to be non-mixed Virtual Chassis). See Understanding Mixed EX Series and
QFX Series Virtual Chassis or Virtual Chassis Fabric for details.
user@device> request virtual-chassis mode mixed reboot
7. After the reboot is complete, specify the preprovisioned configuration mode:
[edit virtual-chassis]
Copyright © 2017, Juniper Networks, Inc.112
QFX3500 Device Hardware Documentation
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