Understanding Interface Naming Conventions On Ex Series Switches - Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual

Table 183: Special Interface Types and Purposes (continued)
Type
Virtual Chassis port (VCP)
interfaces
Virtual management Ethernet
(VME) interface
Related
Documentation

Understanding Interface Naming Conventions on EX Series Switches

Copyright © 2010, Juniper Networks, Inc.
Purpose
Virtual Chassis ports (VCPs) are used to interconnect switches in a Virtual Chassis:
EX4200 switches—Each EX4200 switch has two dedicated VCPs on its rear panel. These
ports can be used to interconnect two to ten EX4200 switches as a Virtual Chassis, which
functions as a single network entity. See "Understanding the High-Speed Interconnection
of the EX4200 Virtual Chassis Members" on page 902. When you power on EX Series switches
that are interconnected in this manner, the software automatically configures the VCP
interfaces for the dedicated ports that have been interconnected. These VCP interfaces are
not configurable or modifiable.
You can also interconnect EX4200 switches across distances of up to 25 miles (40 km) by
using the SFP, SFP+, or XFP uplink module ports. To do so, you must explicitly set the uplink
module ports on the members you want to connect as VCPs. See "Setting an EX4200 Switch
Uplink Module Port as a Virtual Chassis Port (CLI Procedure)" on page 994.
EX8200 switches—EX8200 switches can be connected to an XRE200 External Routing
Engine to create an EX8200 Virtual Chassis. The XRE200 External Routing Engine has
dedicated VCPs that connect to ports on the internal Routing Engines of the EX8200 switches
and can connect to another XRE200 External Routing Engine for redundancy. These ports
require no configuration.
You can also connect two members of an EX8200 Virtual Chassis so that they can exchange
Virtual Chassis Control Protocol (VCCP) traffic. To do so, you explicitly configure network
ports on the EX8200 switches as VCPs. See "Understanding Virtual Chassis Ports in an
EX8200 Virtual Chassis" on page 1079.
EX4200 switches have a VME interface. This is a logical interface that is used for Virtual Chassis
configurations and allows you to manage all the members of the Virtual Chassis through the
master. For more information on the VME interface, see "Understanding Global Management
of an EX4200 Virtual Chassis" on page 899.
EX8200 switches do not use a VME interface. An EX8200 Virtual Chassis is managed through
the management Ethernet (
EX2200 Switches Hardware Overview on page 29
EX3200 Switches Hardware Overview on page 30
EX4200 Switches Hardware Overview on page 32
EX4500 Switches Hardware Overview on page 35
EX8208 Switch Hardware Overview on page 38
EX8216 Switch Hardware Overview on page 42
XRE200 External Routing Engine Hardware Overview
PoE and EX Series Switches Overview on page 3531
Understanding Aggregated Ethernet Interfaces and LACP on page 1244
Understanding Layer 3 Subinterfaces on page 1248
Juniper Networks EX Series Ethernet Switches use a naming convention for defining the
interfaces that is similar to that of other platforms running under Juniper Networks Junos
me0 ) interface on the XRE200 External Routing Engine.
Chapter 56: Interfaces—Overview
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