Juniper EX4500 Hardware Manual page 105

See the following tables:
Table 36 on page 105—EX4200 Virtual Chassis
Table 37 on page 105—EX4500 Virtual Chassis
Table 38 on page 105—EX4550 Virtual Chassis
Table 39 on page 105—Mixed EX4200, EX4500, and EX4550 Virtual Chassis
Table 36: 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 37: 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 38: 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
Table 39: Number of Switches and Switch Roles for a Mixed EX4200, EX4500, and EX4550 Virtual Chassis,
per Junos OS Release
Junos OS Release Number of Switches
11.1 Up to 2 EX4500 switches
and up to 8 EX4200
switches
11.2, 11.3 Up to 2 EX4500 switches
and up to 8 EX4200
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.
Role
EX4500 switches must be in the primary and backup roles and
EX4200 switches in the linecard role.
Primary and backup must be of the same switch type—either
both EX4200 or both EX4500 switches. The remaining switches
must be in the linecard role.
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