Number Of Switches, Required Software Releases, And Member Roles That You Configure In The Virtual Chassis - Juniper EX4200 Hardware Manual

Number of Switches, Required Software Releases, and Member Roles That You Configure in
the Virtual Chassis
A Virtual Chassis must have one member designated as the primary switch and one member designated
as the backup switch. All other switches in the configuration are designated as being in the linecard role.
You manage Virtual Chassis operation through the primary switch.
The number of switches that you can configure in a Virtual Chassis and the role that can be assigned to
each switch in a Virtual Chassis depend on the Juniper Networks Junos operating system (Junos OS) release
that is running on the switches.
See the following tables:
Table 33 on page 101—EX4200 Virtual Chassis
Table 34 on page 101—EX4500 Virtual Chassis
Table 35 on page 101—EX4550 Virtual Chassis
Table 36 on page 102—Mixed EX4200, EX4500, and EX4550 Virtual Chassis
Table 33: Number of Switches and Switch Roles for an EX4200 Virtual Chassis, per Junos OS Release
Junos OS Release Number of Switches
9.0 or later Up to 10 EX4200 switches
Table 34: Number of Switches and Switch Roles for an EX4500 Virtual Chassis, per Junos OS Release
Junos OS Release Number of Switches
11.1—11.3 Up to 2 EX4500 switches
11.4 or later Up to 10 EX4500 switches
Table 35: Number of Switches and Switch Roles for an EX4550 Virtual Chassis, per Junos OS Release
Junos OS Release Number of Switches
12.2 or later Up to 10 EX4550 switches
Role
There must be a primary and a backup; the remaining switches
must be in the linecard role.
Role
There must be a primary and a backup.
There must be a primary and a backup; the remaining switches
must be in the linecard role.
Role
There must be a primary and a backup; the remaining switches
must be in the linecard role.
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