Host Subsystem In An Ex9200 Switch - Juniper EX9214 Hardware Manual

EX9214 Switch Hardware Guide
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Documentation

Host Subsystem in an EX9200 Switch

Related
Documentation
36
Circuits for chassis management and control
Power circuits for the Routing Engine and the Switch Fabric
SF module LEDs—Indicate system status. (See
EX9200 Switch" on page
Ejector levers—Used for installing and removing the SF module
Captive screws—Secure the SF module in place
Installing an SF Module in an EX9200 Switch on page 209
Removing an SF Module from an EX9200 Switch on page 212
Taking the Host Subsystem Offline in an EX9200 Switch on page 203
Switching and routing functionality, system management, and system control functions
of an EX9200 switch are performed by host subsystem. A host subsystem consists of a
Routing Engine functioning together with a Switch Fabric.
You can install either one or two host subsystems in the front panel of an EX9204 or an
EX9208 switch. A base configuration EX9204 and EX9208 switch has one host
subsystem. A redundant configuration EX9204 and EX9208 switch has a second host
subsystem.
You can install either two or three host subsystems in the front panel of an EX9214 switch.
A base configuration EX9214 switch has two host subsystems. A redundant configuration
EX9214 switch has a third host subsystem.
NOTE: In EX9204 and EX9208 switches, we recommend that you install two
host subsystems for redundant protection. If you install only one host
subsystem, we recommend that you install it in slot
we recommend that you install three host subsystems for redundant
protection. If you install only two host subsystems, we recommend that you
install it in slot
0
Each host subsystem has LEDs in the craft interface that display its status. See
Interface in an EX9200 Switch" on page
Taking the Host Subsystem Offline in an EX9200 Switch on page 203
Maintaining Host Subsystem in EX9200 Switches on page 257
Understanding EX9204 Switch Component and Functionality Redundancy
Understanding EX9208 Switch Component and Functionality Redundancy
Understanding EX9214 Switch Component and Functionality Redundancy on page 21
"Switch Fabric Module LEDs in an
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