Juniper EX9200 Features Manual page 98

Virtual Chassis Feature Guide for EX9200 Switches
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Specify the role to be performed by each XRE200 External Routing Engine and each
EX8200 member switch. Associate the role with the member's serial number. An EX8200
Virtual Chassis cannot function when both external Routing Engines, which must be
configured in the
routing-engine
—Enables the member to be eligible to function only in the line-card role. Any
line-card
member of the Virtual Chassis or VCF configuration other than the master or backup
functions in the line-card role and runs only a subset of Junos OS for EX Series switches.
A member functioning in the line-card role does not run the control protocols or the
chassis management processes.
A Virtual Chassis must have at least three members for one member to function in the
line-card role.
In an EX8200 Virtual Chassis configuration, all member switches must be in the
line-card role.
routing-engine —Enables the member to function as a master or backup of the Virtual
Chassis or VCF configuration. The master manages all members and runs the chassis
management processes and control protocols. The backup synchronizes with the
master in terms of protocol states, forwarding tables, and so forth, so that it is prepared
to preserve routing information and maintain network connectivity without disruption
in case the master is unavailable.
In a Virtual Chassis composed of EX Series switches (except EX8200 switches) or
QFX Series switches, specify two and only two members in the
The software determines which of the two members assigned the
functions as master, based on the master election algorithm. See Understanding How
the Master in a Virtual Chassis Is Elected. In these Virtual Chassis, the
role is associated with a switch.
In an EX8200 Virtual Chassis, all XRE200 External Routing Engines must be in the
role.
routing-engine
system—To view this statement in the configuration.
system-control—To add this statement to the configuration.
Autoprovisioning a Virtual Chassis Fabric
Preprovisioning a Virtual Chassis Fabric
Configuring an EX4300 Virtual Chassis (CLI Procedure)
Configuring EX4600 Switches in a Mixed or Non-Mixed Virtual Chassis (CLI Procedure)
Configuring an EX9200 Virtual Chassis on page 32
Configuring a QFX Series Virtual Chassis (CLI Procedure)
Replacing a Member Switch of a Virtual Chassis Configuration (CLI Procedure)
role, have failed.
Copyright © 2017, Juniper Networks, Inc.
routing-engine role.
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