Juniper JUNOS OS 10.3 - SOFTWARE, Руководство пользователя

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EX3200 switches —Typically, you deploy these switches in branch environments or
wiring closets.
• EX4200 switches —You can interconnect EX4200 switches to form a Virtual Chassis
that operates as a single network entity. You can deploy these switches wherever you
need a high density of Gigabit Ethernet ports (24 to 480 ports), redundancy, or the
ability to span a single switch across several wiring closets. Typically, EX4200 switches
are used in large branch offices, campus wiring closets, and top-of-rack locations in a
data center.
Both lines have these features:
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Run under Junos OS for EX Series switches
•
Have options of 24-port and 48-port models
• Have options of full (all ports) or partial (8 ports) Power over Ethernet (PoE) capability
• Have optional uplink modules that provide connection to distribution switches
EX3200 Switches
EX3200 switches provide connectivity for low-density environments. Typically, you deploy
these switches in branch environments or wiring closets where only one switch is required.
EX3200 switches are available in models with either 24 or 48 ports and with either all
ports equipped for Power over Ethernet (PoE) or only 8 ports equipped for PoE. All models
provide ports that have 10/100/1000Base-T Gigabit Ethernet connectors and optional
1-gigabit small form-factor pluggable (SFP) transceivers, 10-gigabit small form-factor
pluggable (SFP+) transceivers, or 10-gigabit small form-factor pluggable (XFP)
transceivers for use with fiber connections.
EX3200 switches include:
• A field-replaceable power supply and an optional additional connection to an external
power source.
•
A field-replaceable fan tray with single fan.
• Junos OS with its modular design that enables failed system processes to gracefully
restart.
EX4200 Switches
EX4200 switches provide connectivity for medium- and high-density environments and
scalability for growing networks. These switches can be deployed wherever you need a
high density of Gigabit Ethernet ports (24 to 480 ports) or redundancy. Typically, EX4200
switches are used in large branch offices, campus wiring closets, and data centers where
they can be positioned as the top device in a rack to provide connectivity for all the devices
in the rack.
You can connect individual EX4200 switches together to form one unit and manage the
unit as a single chassis, called a
Virtual Chassis . You can add more member switches to
the Virtual Chassis as needed, up to a total of 10 members.
27 Copyright © 2010, Juniper Networks, Inc.
Chapter 2: Supported Hardware