Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual page 1178

Complete Software Guide for Junos
Member Switch and Member ID
Table 162: EX8200 Virtual Chassis Roles and Member IDs
Hardware
EX8208 or EX8216 switch
XRE200 External Routing Engine
Virtual Chassis Identifier (VCID)
Related
Documentation
Understanding EX8200 Virtual Chassis Topologies
1074
®
OS for EX Series Ethernet Switches, Release 10.4
Can detect certain error conditions (such as an unplugged cable) on any interfaces
that have been configured on them through the master.
All EX8200 switches in an EX8200 Virtual Chassis are assigned the linecard role. There
is no other role available for the switches in an EX8200 Virtual Chassis.
An EX8200 Virtual Chassis contains member IDs 0 through 9. Member IDs 0 through 7
must be configured as EX8200 switches.
Member IDs 8 and 9 must be configured as XRE200 External Routing Engines. An XRE200
External Routing Engine automatically assumes the next available member ID if a Virtual
Chassis configuration has not been configured and committed. The external Routing
Engine does not function properly until it is configured as member 8 or 9, however.
Table 162 on page 1074 summarizes EX8200 Virtual Chassis Member IDs and roles.
Role
Linecard
Master or backup
All members of a Virtual Chassis configuration share one Virtual Chassis identifier (VCID).
This identifier is derived from internal parameters. When you are monitoring a Virtual
Chassis configuration, the VCID is displayed in the user interface.
EX8200 Virtual Chassis Overview on page 1071
Example: Setting Up a Full Mesh EX8200 Virtual Chassis with Two EX8200 Switches
and Redundant XRE200 External Routing Engines on page 1087
Configuring an EX8200 Virtual Chassis (CLI Procedure) on page 1093
An EX8200 Virtual Chassis is composed of one or two XRE200 External Routing Engines
interconnected with two Juniper Networks EX8200 Ethernet Switches.
This topic explains the topologies that you can use to connect these devices.
The topic covers:
Understanding the Full Mesh EX8200 Virtual Chassis Topology on page 1075
Understanding the Ring EX8200 Virtual Chassis Topology on page 1075
Member IDs
0–7
8 or 9
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