M320 Craft Interface Host Subsystem Leds; Figure 16: Led Display In Alarm Mode; Table 8: M320 Host Subsystem Leds - Juniper M320 Hardware Manual

M320 Router Hardware Guide
Related
Documentation

M320 Craft Interface Host Subsystem LEDs

30
Third and fourth lines—Status messages, which rotate at 2-second intervals. Some
conditions, such as removal or insertion of a system component, can interrupt the
messages.
To add a message that alternates every 2 seconds with the default status messages,
use the
set chassis display message
System Basics and Services Command Reference.
When a red or yellow alarm occurs, the LED display switches to alarm mode and reports
about the alarm condition, as shown in Figure 16 on page 30.

Figure 16: LED Display in Alarm Mode

The lines in the display report the following information:
First line—Router name.
Second line—Number of active alarms.
Third and fourth lines—Individual alarm messages, with the most severe condition
shown first. The prefix on each line indicates whether the alarm is a red (
alarm.
For a list of alarm messages that can appear on the LED display, see "M320 Chassis and
Interface Alarm Messages" on page 127.
M320 Craft Interface Description on page 28
M320 Craft Interface Alarm LEDs and ACO/LT Button on page 28
M320 Alarm Relay Contacts
Each host subsystem has three LEDs, located in the middle of the craft interface, that
indicate its status. The LEDs labeled
RE0 and the CB in slot CB0
in slot and the CB in slot
RE1
subsystem LEDs.

Table 8: M320 Host Subsystem LEDs

Label Color
FAIL Red
OK Green
command. For more information, see the Junos OS
show the status of the Routing Engine in slot
RE0
. The LEDs labeled RE1 show the status of the Routing Engine
. Table 8 on page 30 describes the functions of the host
CB1
State Description
On steadily Host is offline.
On steadily Host is online and is functioning normally.
) or yellow (
R
Copyright © 2010, Juniper Networks, Inc.
)
Y