Nortel Networks 9150 - Manual (Page 380)

350 Remote Gateway 9150 Installation and Administration Guide
Troubleshooting Standard 3.1
No LED indicators are lit on the
Remote Gateway 9150 unit. 1 Ensure that the Remote Gateway 9150
unit is connected to a power source.
2 If you are using an uninterruptible power
supply (UPS), ensure the UPS is
powered on.
3 Verify that the AC power source is
operational.
The Ethernet COLL LED
indicator is lit solid when Half-
Duplex Ethernet is enabled in
the IP configuration. Network collisions are bound to occur and
are normal. However, if this LED indicator is
lit solid when Half-Duplex Ethernet is
enabled in the IP configuration, do the
following:
1 Check the physical network connection.
2 Verify that the Remote Gateway 9150
unit can be PINGed.
3 Check the network configuration (such
as routing, traffic load, and so on). Adjust
the network configuration, if required.
4 Normally, there is no broadcast or
multicast activity on the telephony LAN
(TLAN). Interconnect a hub and a
network analyzer to the TLAN and
monitor for such activity. Identify the
source(s) and isolate them from the
TLAN.
IF Symptom THEN What to do