External Routing Engine; Chassis - Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual

Complete Software Guide for Junos
Related
Documentation
Understanding EX8200 Virtual Chassis Components
Virtual Chassis Ports (VCPs)
1072
®
OS for EX Series Ethernet Switches, Release 10.4
) on the internal Routing Engines of the EX8200 member switches. A member
MGMT
switch is any switch that is part of a Virtual Chassis.
You can add a second XRE200 External Routing Engine to an EX8200 Virtual Chassis
topology to provide external Routing Engine redundancy. See "Understanding EX8200
Virtual Chassis Topologies" on page 1074.
Understanding EX8200 Virtual Chassis Components on page 1072
Understanding Virtual Chassis Member ID Numbering in an EX8200 Virtual Chassis on
page 1077
Understanding Virtual Chassis Ports in an EX8200 Virtual Chassis on page 1079
Understanding EX8200 Virtual Chassis Compatibility Requirements on page 1082
Understanding Virtual Chassis Roles in an EX8200 Virtual Chassis on page 1078
Configuring an EX8200 Virtual Chassis (CLI Procedure) on page 1093
An EX8200 Virtual Chassis allows you to interconnect two Juniper Networks EX8200
Ethernet Switches and run them as a single network entity. You interconnect the EX8200
switches by connecting them to an XRE200 External Routing Engine.
This topic covers:
Virtual Chassis Ports (VCPs) on page 1072
Master External Routing Engine Role on page 1073
Backup External Routing Engine Role on page 1073
Linecard Role on page 1073
Member Switch and Member ID on page 1074
Virtual Chassis Identifier (VCID) on page 1074
A Virtual Chassis port (VCP) in an EX8200 Virtual Chassis is any interface whose function
is to send and receive Virtual Chassis Control Protocol (VCCP) traffic to create, monitor,
and maintain the Virtual Chassis. VCPs are responsible for creating, monitoring, and
maintaining the Virtual Chassis as well as carrying data traffic through the Virtual Chassis.
All Gigabit Ethernet ports on the Virtual Chassis Control Interface (VCCI) modules on
the XRE200 External Routine Engine are VCPs. Port 0 on the XRE200 External Routing
Engine is also a VCP. You use VCPs to connect EX8200 switches to the external Routing
Engine to form a Virtual Chassis and also to connect XRE200 External Routing Engines
together to provide external Routing Engine redundancy within the Virtual Chassis. Any
link connecting an XRE200 External Routing Engine to an EX8200 switch or to another
XRE200 External Routing Engine, therefore, is automatically a VCP link. No user
configuration is required to configure these VCP links.
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