Juniper E Series User Manual

Status LEDs ! 75
Chapter 7: Powering Up E-series Routers
Status LEDs
Upon initial powerup, the components of the E-series router run boot code, go
through a series of self diagnostic tests, and synchronize with each other.
When the tests are complete, use the LEDs on each module to determine the status
of the router. Observe the line module and SRP module LEDs in the front, and the
I/O line module and SRP I/O module LEDs in the rear.
Refer to Chapter 10, Troubleshooting, for information on the system’s LEDs.
Powering Down
If you need to power down or remove the SRP module, first enter the halt
command to temporarily suspend the system’s operation. See JUNOSe System
Basics Configuration Guide, Chapter 4, Managing the System for more information.
If you shut down the system improperly, it will run an investigation of the file
allocation table (FAT) the next time it reboots.
The Next Step
If you have problems powering up the system, turn to Chapter 10, Troubleshooting,
for help.
If the system boots properly, turn to Chapter 8, Accessing E-series Routers.
CAUTION: If you do not use the halt command before removing or powering down
an SRP module, the system’s NVS card may become corrupted.

Juniper E Series Specifications

General

Brand	Juniper
Model	E Series
Category	Network Router
Language	English