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Understanding EX3300 Virtual Chassis Hardware Configuration
Virtual Chassis is a feature in Juniper Networks EX3300 Ethernet Switches that allows
you to interconnect two or more EX3300 switches, enabling them to operate as a unified,
single, high bandwidth switch. Starting in Junos OS Release 12.2, you can interconnect a
maximum of ten EX3300 switches by using the uplink ports configured as Virtual Chassis
ports (VCPs) to form a Virtual Chassis. You can connect up to six EX3300 switches in
an EX3300 Virtual Chassis in prior Junos OS releases. By default, uplink ports 2 and 3 are
configured as VCPs.
NOTE:
EX3300 switches do not have dedicated VCPs.
All EX3300 switch models support Virtual Chassis, and you can interconnect different
models, which allows you to choose among a range of possible port configurations within
the same Virtual Chassis.
The Virtual Chassis configuration includes a master switch and a backup switch, with all
other switches in the configuration designated as “linecard” member switches. Virtual
Chassis operation is managed through the master switch. Each switch in the Virtual
Chassis is assigned a unique member ID that is displayed on the switch LCD.
Related
Documentation
Understanding EX Series Virtual Chassis Components
•
•
Planning EX3300 Virtual Chassis on page 107
Virtual Chassis Cabling Configuration Examples for EX3300 Switches
You can install EX3300 switches on a single rack or in multiple racks, or in different wiring
closets, and interconnect them to form a Virtual Chassis.
You form an EX3300 Virtual Chassis by connecting uplink port connections as Virtual
Chassis ports (VCPs). Ports 2 and 3 are configured as VCPs on all uplink modules by
default.
The physical location of the switches in a Virtual Chassis is restricted only by the maximum
length supported for cables to connect the VCPs—in this case, the maximum length of
the uplink module cables. The maximum cable length for the uplink module cables
supported by an EX3300 switch is 6.2 miles (10 km).
The following illustrations show various Virtual Chassis cabling configuration examples.
NOTE:
For increased availability and redundancy, we recommend that you
always configure your Virtual Chassis in a ring topology.
,
, and
show six EX3300
switches stacked vertically in a rack and interconnected in a ring topology.
Copyright © 2016, Juniper Networks, Inc.
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EX3300 Switch Hardware Guide
Summary of Contents for EX3300
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