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CHAPTER 12
Configuring a Virtual Chassis
Configuring a Virtual Chassis
Configuring a Virtual Chassis with a Preprovisioned Configuration File
Copyright © 2010, Juniper Networks, Inc.
This section contains the following:
Configuring a Virtual Chassis on page 149
To take advantage of the scalability features of EX–4200 switches, you can configure a
virtual chassis that includes up to 10 member switches. You can interconnect the member
switches using the dedicated virtual chassis ports (VCPs) on the back of the switch. You
do not have to configure the interface for the dedicated VCPs.
A virtual chassis can be configured with either:
preprovisioned configuration—Allows you to deterministically control the member ID
and role assigned to a member switch by tying it to its serial number.
nonprovisioned configuration—The master sequentially assigns a member ID to other
member switches. The role is determined by the mastership priority value and other
factors in the master election algorithm.
Configuring a Virtual Chassis with a Preprovisioned Configuration File on page 149
1.
Add a Member to a Virtual Chassis on page 150
2.
To configure a virtual chassis using a preprovisioned configuration:
Make a list of the serial numbers of all the switches to be connected as a virtual chassis.
1.
Note the desired role (
routing-engine
2.
member with a
routing-engine
you configure the member with a
backup.
Interconnect the member switches using the dedicated VCPs on the rear panel of
3.
switches. See Connecting a Virtual Chassis Cable to an EX4200 Switch.
NOTE: Arrange the switches in sequence, either from top to bottom or
from bottom to top (0–9).
or
linecard
) of each switch. If you configure the
role, it is eligible to function as a master or backup. If
role, it is not eligible to become a master or
linecard
149
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