Juniper Networks ISG 2000 사용자 설명서

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Chapter 1 Overview
6
User’s Guide
When you turn on the NetScreen-ISG 2000, the Status LED changes from off to blinking 
green. Startup takes around 90 seconds to complete. If you want to turn the NetScreen-
ISG 2000 off and on again, wait a few seconds between shutting it down and powering it 
back up.
Interface Modules
The front of the NetScreen-ISG 2000 has four interface module bays. Each interface 
module has two, four, or eight ports, and each port has a pair of LEDs. 
10/100 Mbps Interface Module
The 10/100 Mbps interface module is appropriate for a 10/100 Base-T LAN. Connect the 
ports using a twisted pair cable with RJ-45 connectors. (See 
 for cabling guidelines.)
MOD3
green
Security module is installed.
off
No card installed.
FLASH
Compact Flash 
Status
green
PC card is installed in compact flash slot.
blinking green
Read-write activity is detected.
off
Compact flash slot is empty.
Note: 
To change the Alarm LED from red to green but keep the alarm message(s) in the 
menu system, use the CLI command clear led alarm.
Note: 
You can use both 10/100 and GBIC cards simultaneously for the same 
NetScreen-ISG 2000; there are no combination restrictions. However, the cards are not
hot-swappable.
Note: 
The NetScreen-ISG 2000 supports a maximum port count of 28. If there are
8-port 10/100 modules in each I/O slot, then ports five through eight, in slot 4, are 
disabled. Under this circumstance, these ports are unavailable for firewall and HA 
functions.
LED
Purpose
Color
Meaning