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CHAPTER 1
EX8208 Switch Overview
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EX8208 Switch Hardware Overview on page 3
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EX8208 Switch Configurations on page 6
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Chassis Physical Specifications of an EX8208 Switch on page 9
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UnderstandingEX8208 Switch Component and Functionality Redundancy on page 11
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Slot Numbering for an EX8208 Switch on page 13
EX8208 Switch Hardware Overview
Juniper Networks EX8208 Ethernet Switches provide high performance, scalable
connectivity, and carrier-class reliability for high-density environments such as
campus-aggregationanddata-centernetworks.TheEX8208switchisamodularsystem
that provides high availability and redundancy for all major hardware components,
including Routing Engines, switch fabric, fan tray, and power supplies.
You can manage EX8208 switches using the same interfaces that you use for managing
other devices running the Juniper Networks Junos operating system (Junos OS)—the
command-line interface (CLI), the J-Web graphical interface, and the Network and
Security Manager (NSM).
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Software on page 3
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Chassis Physical Specifications on page 4
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Routing Engines and Switch Fabric on page 5
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Line Cards on page 5
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Cooling System on page 5
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Power Supplies on page 6
Software
TheJuniper NetworksEX SeriesEthernetSwitchesrun under the JuniperNetworks Junos
OS, which provides Layer 2 and Layer 3 switching, routing, and security services. The
same Junos OS code base that runs on EX Series switches also runs on all Juniper
Networks J Series, M Series, MX Series, and T Series routers.
3Copyright©2010, JuniperNetworks, Inc.