T1600 RE-2000 Description
The RE-2000 boots from the storage media in this order: the USB device, then the CompactFlash card (if present), then the hard disk, then the LAN.
Figure 1: Routing Engine 2000 (RE-2000)
Each RE-2000 (shown in Figure 1) consists of the following components:
- CPU—Runs Junos OS to maintain the 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 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 out-of-band 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.
The faceplate of the RE-2000 contains the following:
- USB port—Provides a removable media interface through which you can install the Junos OS manually. The Junos OS supports USB version 1.0.
- Reset button—Reboots the Routing Engine when pressed.
- Offline button—Takes the Routing Engine offline when pressed.
- Extractor clips—Control the locking system that secures the Routing Engine.
- LEDs—HDD and ONLINE indicate activity on the hard disk drive and the status of the Routing Engine.
