T640 Re-1600 Description; Figure 18: Routing Engine 600; Figure 19: Routing Engine 1600 (Re-1600); Table 7: Routing Engine 600 Leds - Juniper T640 Hardware Manual

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Table 7: Routing Engine 600 LEDs

Label Color
Yellow
HD
NOTE: The LEDs on the Routing Engine do not necessarily indicate
routing-related activity.
Replacing a T640 Routing Engine on page 206
T640 Routing Engine Functions on page 8
Maintaining the T640 Routing Engines on page 148

T640 RE-1600 Description

The RE-1600 Routing Engine boots from the storage media in this order: the PC Card in
(if present), then the PC Card in
SLOT 0
(if present), then the hard disk.

Figure 19: Routing Engine 1600 (RE-1600)

Each RE-1600 (shown in Figure 19 on page 35) consists of the following components:
CPU—Runs Junos OS to maintain the router's routing tables and routing protocols. It
has a Pentium-class processor.
SDRAM—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.
Chapter 3: T640 Router Hardware Component Overview
State Description
On steadily or Indicates activity on the hard drive.
blinking
(if present), then the CompactFlash card
SLOT 1
35