Troubleshooting

Reading the LEDs

Table 4-1 describes the LEDs which are located on the front panel of the host

 

 

 

device.

 

 

Table 4-1.

LEDs on the Host Device Front Panel

 

 

 

 

 

LED

State

Description

 

 

 

 

 

WAN 1

Off

Inactivity on the synchronous serial port 1. If you are sure some data activity is going

 

Activity

 

 

on this port, check the serial 1 cable connection.

 

 

On/Flashing

Transmitting/Receiving data on the synchronous serial port 1.

 

 

 

 

 

WAN 0

Off

Inactivity on the synchronous serial port 0. If you are sure some data activity is going

 

Activity

 

 

on this port, check the serial 0 cable connection.

 

 

On/Flashing

Transmitting/Receiving data on the synchronous serial port 0.

 

 

 

 

 

BRI

Off

Inactivity on the ISDN BRI port. If you are sure some data activity is going on this

 

Activity

 

 

port, check the BRI cable connection.

 

 

On/Flashing

Transmitting/Receiving data on the ISDN BRI port.

 

 

 

 

 

LAN

Off

Inactivity on the LAN Ethernet port. If you are sure some data activity is going on

 

Activity

 

 

this port, check the Ethernet cable connection that goes into the front of the host

 

 

 

 

device.

 

 

On/Flashing

Transmitting/Receiving data on the LAN Ethernet port.

 

 

 

 

 

 

 

 

 

 

N O T E

 

Although the “Fault” orange LED on the host device front panel is not for this

 

 

 

HP AdvanceStack Internet Router only, the fault condition of the router is

OR’ed with the fault condition from other devices in the host and the host itself. Therefore it is necessary to check all devices in the host device, including this HP J3138A Internet Router, if the “Fault” orange LED on the host device front panel is flashing.

Maintenance

4-2