T640 Re-2000 Description; Green On Steadily - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide
Related
Documentation

T640 RE-2000 Description

44
Table 14: Routing Engine C1800 LEDs (continued)
Label Color
Green
ONLINE
Red
—
Green
USB
—
T640 Routing Engine Description on page 36
T640 RE-C1800 Description on page 42
Troubleshooting the T640 Host Subsystem on page 472
Each RE-2000 (shown in
CPU—Runs Junos OS to maintain the router's routing tables and routing protocols. It
has a Pentium-class processor.
DRAM—Provides storage for the routing and forwarding tables and for other Routing
Engine processes.
CompactFlash card—Provides primary storage for software images, configuration files,
and microcode. The fixed CompactFlash card is inaccessible from outside the router.
Hard disk—Provides secondary storage for log files, memory dumps, and rebooting the
system if the CompactFlash card fails.
EEPROM—Stores the serial number of the Routing Engine.
Interfaces for management access—Provide information about Routing Engine status
to devices (console, laptop, or terminal server) connected to the Routing Engine ports
located on the CIP.
State Description
On steadily Routing Engine is functioning normally.
On steadily Routing Engine is not functioning normally.
Off Routing Engine is not online or not functioning
normally.
On steadily Indicates activity on the USB port.
Off There is no activity on the USB port.
Figure 22 on page 45) consists of the following components:
Copyright © 2017, Juniper Networks, Inc.