Configure Virtual Chassis on Juniper EX4200 EX4500 EX4550 Switches

Howto configure Virtual Chassis on Juniper EX4200 EX4500 EX4550 Switches



1. Preprovisioned Configuration
Step 1: Prepare the list for Serial number of the switches and choose which switch will be routing-engine (2 switches one master and one backup) or line-card role (others).
Step 2: Start Switch which you want it is master
Step 3: Run EZSetup
Step 4: Set preprovisioning configuration mode

 [edit virtual-chassis]
root@switch# set preprovisioned

Step 5: Set routing-engine role for members (master and backup)

root@switch# set virtual-chassis member 0 serial-number F8JDJJDD898 role routing-engine

root@switch# set virtual-chassis member 1 serial-number F8JDJJDD387 role routing-engine

Step 6: Connect Virtual Chassis to the switches and others switches will be line-card role.

2. Non provisioned

Step 1: Choose master role by priority on switches which we want them to be routing-engine role.

2 switches will be routing-engine roles and one is master and one is backup

[edit virtual-chassis]
root@switch# set member 0 mastership-priority 255

[edit virtual-chassis]
root@switch# set member 0 mastership-priority 255

Step 2: Connect others switch to Virtual chassis. By default, priority on switches are 128.

3.  Show virtual chassis status

root@switch> show virtual-chassis

That’s all. Thanks for using IThelpblog.com.

 source :http://ithelpblog.com/network/juniper/howto-configure-virtual-chassis-on-juniper-ex4200-ex4500-ex4550-switches/