Juniper JUNOS OS 10.3 - SOFTWARE Manual page 1104

Complete Software Guide for Junos
Requirements
Overview and Topology
Configuration
Step-by-Step
Procedure
Results
1008
®
OS for EX Series Ethernet Switches, Release 10.3
This example uses the following hardware and software components:
Three EX4200 switches
Junos OS Release 10.0 or later for EX Series switches
Before you begin, be sure you have:
Ensured that two member switches are running the same version of Junos OS for EX
1.
Series switches so that they can form the initial Virtual Chassis configuration.
Cabled and powered on those two switches to create the Virtual Chassis configuration.
2.
See Connecting a Virtual Chassis Cable to an EX4200 Switch.
Ensured that you know the name or the URL of the software package to be used by
3.
the automatic software update feature.
For a standalone EX4200 switch to join an existing Virtual Chassis configuration, it must
be running the same version of Junos OS that is running on the Virtual Chassis master. If
the software version on the new switch is not the same as the version running on the
master, the master keeps the new switch in the inactive state.
The topology for this example consists of three EX Series switches. Two of the switches
are connected in a Virtual Chassis configuration and are therefore running the same
version of the Junos OS for EX Series switches. The third switch is a standalone switch
that is running a different software version than the Virtual Chassis member switches.
In this example, we will enable the automatic software update feature on the Virtual
Chassis configuration and then add the third switch to the configuration. The master will
detect the presence of the new switch, check the software version running on the new
switch, and, because it is not the same version currently running on the master, will update
the software version on the new switch and reboot the switch so that it can join the Virtual
Chassis configuration and immediately be put in the active state.
To configure automatic software update, perform this task:
To configure automatic software update:
Enable automatic software update and configure the path to the software package:
1.
[edit]
user@switch# set virtual-chassis auto-sw-update package-name
/var/tmp/jinstall-ex-4200-10.0R1.1-domestic-signed.tgz
Connect and power on the new switch to be added to the existing Virtual Chassis
2.
configuration.
Check the results of the configuration:
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