Juniper XRE200 -, Руководство по оборудованию

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Physical Specifications
The XRE200 External Routing Engine is a 2 rack unit (2 U) Routing Engine. See Figure 1 on page 19 .
Figure 1: XRE200 External Routing Engine
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The XRE200 External Routing Engine has an LCD panel that provides hardware status information. The
LCD panel displays a variety of information about the external Routing Engine and, if your external Routing
Engine is running Junos OS Release 12.1 or later, provides menu options to perform basic operations such
as initial configuration and external Routing Engine reboot. See “LCD Panel in an XRE200 External Routing
Engine” on page 25 .
Virtual Chassis Control Interface Modules
The XRE200 External Routing Engine supports up to two Virtual Chassis Control Interface (VCCI) modules.
Each VCCI module contains either four 10/100/1000BASE-T Gigabit Ethernet VCPs with RJ-45 connectors
or four 1000BASE-X Gigabit Ethernet VCPs with small form-factor pluggable (SFP) connections. A second
VCCI module is required if you are using the recommended redundant XRE200 External Routing Engine
configuration and connecting five or more EX8200 switches into a Virtual Chassis.
The RJ-45 VCPs connect to the management (MGMT) ports on the internal Routing Engines of the EX8200
member switches to form an EX8200 Virtual Chassis. The VCPs on the RJ-45 VCCI modules can also be
used to connect external Routing Engines together to provide a connection between a primary and a
backup external Routing Engine.
The SFP VCPs are used to connect two XRE200 External Routing Engines together over a long distance
in the same EX8200 Virtual Chassis. You can use the SFP ports to connect XRE200 External Routing
Engines over distances up to 43.5 miles (70 km). You can also use the SFP VCPs to connect an XRE200
External Routing Engine to an EX8200 switch within a Virtual Chassis only if an intermediary switch is
used. The intermediary switch is required because the management (MGMT) port on the Routing Engine
(RE) modules or Switch Fabric and Routing Engine (SRE) modules of an EX8200 switch do not support SFP
connections.
VCCI modules are installed in the VCCI module slots on the XRE200 External Routing Engines. Both VCCI
module slots support RJ-45 and SFP VCCI modules. RJ-45 and SFP VCCI modules can be installed
simultaneously. In configurations using one RJ-45 and one SFP VCCI module, either VCCI module can be
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