T640 Re-1600 Leds; T640 Re-2000 Description; Table 10: Routing Engine 1600 Leds - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide
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38

T640 RE-1600 LEDs

LEDs—Table 10 on page 38

Table 10: Routing Engine 1600 LEDs

Label Color
Red and
Slot LEDs 0
green
and 1
alternately
Green
Yellow
HD
NOTE: The LEDs on the Routing Engine do not necessarily indicate
routing-related activity.
NOTE: The LEDs that report host module status (including Routing Engine
status) are on the craft interface rather than the Routing Engine faceplate.
T640 Host Subsystem Description on page 32
T640 Routing Engine Description on page 33
T640 RE-1600 Description on page 36
Troubleshooting the T640 Host Subsystem on page 213

T640 RE-2000 Description

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.
describes the functions of these LEDs.
State Description
Blinking Indicates that the Routing Engine is booting
and the firmware is checking if a PC card is
installed.
On steadily Indicates that the Routing Engine booted from
the PC Card.
On steadily or Indicates activity on the hard drive.
blinking
Figure 20 on page 39) consists of the following components:
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