T640 Host Subsystem Overview; T640 Host Subsystem Description; T640 Routing Engine Overview; T640 Routing Engine Description - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide
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T640 Host Subsystem Overview

T640 Host Subsystem Description

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T640 Routing Engine Overview

32
Maintaining the T640 SIBs on page 158
Replacing a T640 SIB on page 212
Upgrading to a T640 Standard SIB Version B on page 214
T640 Host Subsystem Description on page 32
T640 Routing Engine Overview on page 32
T640 T Series Control Boards (T-CBs) Description on page 38
T640 T Series Control Boards (T-CBs) LEDs on page 39
The host subsystem provides the routing and system management functions of the
router. You can install one or two host subsystems on the router. To operate, each host
subsystem functions as a unit; the Routing Engine requires the corresponding T–CB, and
vice versa.
NOTE: 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
RE0
Each host subsystem has three LEDs that display its status. The host subsystem LEDs
are located on the upper right of the craft interface. For more information about the host
subsystem LEDs, see "T640 Craft Interface Host Subsystem LEDs" on page 44.
Replacing the T640 Host Subsystem Components on page 198
Taking the T640 Host Subsystem Offline on page 198
Maintaining the T640 Host Subsystem on page 148
T640 Routing Engine Description on page 32
T640 RE-600 Description on page 33
T640 RE-1600 Description on page 35
T640 RE-2000 Description on page 36

T640 Routing Engine Description

The Routing Engine is an Intel-based Peripheral Component Interconnect (PCI) platform
that runs Junos OS. Software processes that run on the Routing Engine maintain the
routing tables, manage the routing protocols used on the router, control the router
interfaces, control some chassis components, and provide the interface for system
management and user access to the router.
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Copyright © 2010, Juniper Networks, Inc.