Intraconnect Module And Virtual Chassis Module; Figure 3: Ex4500 Switch Rear With Virtual Chassis Module Installed; System Overview - Juniper EX4500 Hardware Manual

Intraconnect Module and Virtual Chassis Module

Copyright © 2017, Juniper Networks, Inc.

Figure 3: EX4500 Switch Rear with Virtual Chassis Module Installed

EX4500 switches are available in models with either front-to back airflow or back-to-front
airflow and hardware that either supports or does not support Data Center Bridging
(DCB), also known as Converged Enhanced Ethernet (CEE). See
on page 7. All eight models provide 40 wire-speed 10-gigabit small form-factor pluggable
(SFP+) network ports that can house either 1-Gigabit Ethernet transceivers or 10-Gigabit
Ethernet transceivers. All models support two optional high-speed uplink modules.
To provide carrier-class reliability, EX4500 switches include:
Dual redundant, load-sharing power supplies that are hot-insertable and hot-removable
field-replaceable units.
An FRU fan tray with five fans. The switch remains operational if a single fan fails.
Redundant Routing Engines in a Virtual Chassis configuration. This redundancy enables
graceful Routing Engine switchover (GRES).
Junos OS with its modular design that enables failed system processes to gracefully
restart.
EX4500 switches ship with either the intraconnect module or the Virtual Chassis module
preinstalled in the switch. Only one of the modules can be installed on the rear side of
the switch chassis at a time. Both modules are offline FRUs.
Intraconnect module—The intraconnect module helps the switch achieve line rate on
all its ports. See "Intraconnect Module in EX4500 Switches" on page
Virtual Chassis module—The Virtual Chassis module has two dedicated Virtual Chassis
ports (VCPs) that can be used to interconnect the EX4500 switch with EX4200
switches, EX4500 switches, or EX4550 switches to form a Virtual Chassis. See
Chassis Module in EX4500 Switches" on page
Chapter 1: System Overview
"EX4500 Switch Models"
26.
28.
"Virtual
5