Ptx5000 Routing Engine Overview; Ptx5000 Routing Engine Description; Routing Engine Slots; Routing Engine Functions - Juniper PTX Series Hardware Manual

PTX5000 Packet Transport Switch Hardware Guide
Table 21: Power Supply Module LEDs (continued)
LED Color
—One per Red
FAULT
power supply
–
Related
Documentation

PTX5000 Routing Engine Overview

PTX5000 Routing Engine Description

44
State
On steadily
Off
PTX5000 Power System Description on page 37
PTX5000 Power Distribution Unit LEDs on page 42
Maintaining the PTX5000 Power System on page 113
Troubleshooting the PTX5000 Power System on page 139
PTX5000 Routing Engine Description on page 44
PTX5000 Routing Engine LEDs on page 47
Routing Engine Slots on page 44
Routing Engine Functions on page 44
Routing Engine Components on page 45
Routing Engine Boot Sequence on page 46

Routing Engine Slots

You can install one or two Routing Engines in the PTX5000 Packet Transport Switch.
The Routing Engines install into the control boards labeled
Engines are installed, one functions as the master and the other acts as the backup. If
the master Routing Engine fails or is removed and the backup is configured appropriately,
the backup restarts and becomes the master.

Routing Engine Functions

The Routing Engine handles all routing protocol processes, as well as the software
processes that control the packet transport switch's interfaces, the chassis components,
system management, and user access to the packet transport switch. The routing and
software processes run on top of a kernel that interacts with the Packet Forwarding
Engine. For more information about the processes, see the
Services Command Reference
The Routing Engine constructs and maintains one or more routing tables. From the routing
tables, the Routing Engine derives a table of active routes, called the forwarding table,
which is then copied into the Packet Forwarding Engine. The design of the ASICs allows
Description
PSM might be starting up, not properly installed, not receiving
sufficient power, or not functioning properly.
No faults have been detected for the PSM, or the PSM is not
receiving any input voltage.
.
and . If two Routing
CB0 CB1
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