Status Leds; Powering Down; The Next Step - Juniper E Series Hardware Manual

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 "Troubleshooting" on page 99, 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.
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.
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 "Troubleshooting"
on page 99, for help.
If the system boots properly, turn to "Accessing E-series Routers" on page 75.
Powering Up E-series Routers
73
The Next Step