Juniper EX4550 - Number of Switches, Required Software Releases, and Member Roles that You Configure in the Virtual Chassis; Table 66: Number of Switches and Switch Roles for an EX4200 Virtual Chassis

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On EX4550 switches:
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The dedicated VCPs on the Virtual Chassis module
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SFP+ network ports configured as VCPs
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SFP+ expansion module ports configured as VCPs
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10GBASE-T network ports configured as VCPs
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10GBASE-T expansion module ports configured as VCPs
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40G QSFP+ expansion module ports configured as VCPs
NOTE: You can use the 10GBASE-T Ethernet network ports, 10GBASE-T
expansion module ports, and QSFP+ expansion module ports configured
as VCPs to interconnect only EX4550 switches in a Virtual Chassis. These
ports cannot be used to connectan EX4550 switch with an EX4200 switch
or an EX4500 switch in a Virtual Chassis.
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 master 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 master 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:
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Table 66 on page 136—EX4200 Virtual Chassis
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Table 67 on page 137—EX4500 Virtual Chassis
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Table 68 on page 137—EX4550 Virtual Chassis
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Table 69 on page 137—Mixed EX4200, EX4500, and EX4550 Virtual Chassis
Table 66: Number of Switches and Switch Roles for an EX4200 Virtual Chassis, per Junos OS
Release
RoleNumber of SwitchesJunos OS Release
There must be a master and a backup; the remaining switches must
be in the linecard role.
Up to 10 EX4200 switches9.0 or later
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EX4550 Switch Hardware Guide