Virtual Chassis Module; Table 58: Number Of Switches And Switch Roles For A Mixed Ex4200, Ex4500, And Ex4550 Virtual Chassis, Per Junos Os Release - Juniper EX4500 Hardware Manual

Table 56: 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 57: 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 58: 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
11.4 or later Up to 10 total of both EX4200
and EX4500 switches
12.2 or later Up to 10 total of EX4200,
EX4500, and EX4550
switches

Virtual Chassis Module

Copyright © 2017, Juniper Networks, Inc.
Virtual Chassis modules are available for EX4500 and EX4550 switches. However,
installing a Victual Chassis module is not mandatory for using these switches in a Virtual
Chassis configuration.
NOTE: On EX4500 switches that are running Junos OS releases earlier than
Release 11.4R1, you must install a Virtual Chassis module for using the switch
in a Virtual Chassis configuration. Starting with Release 11.4R1, you can use
uplink port connections to interconnect EX4500 member switches into a
Virtual Chassis.
Role
There must be a master and a backup.
There must be a master and a backup; the remaining switches must
be in the linecard role.
Role
There must be a master and a backup; the remaining switches must
be in the linecard role.
Role
EX4500 switches must be in the master and backup roles and
EX4200 switches in the linecard role.
Master 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.
Any switch type in any role. There must be a master and a backup
and the remaining switches must be in the linecard role.
Any switch type in any role. There must be a master and a backup
and the remaining switches must be in the linecard role.
Chapter 10: Planning the Virtual Chassis
115