Table 5-1 Fault Location And Possible Cause - Huawei EchoLife HG861 Manual

EchoLife HG861 GPON Terminal

Table 5-1 Fault Location and Possible Cause

Fault Type
ONT Registration Failure
Failed to access the Internet
Issue 01 (2009-07-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Possible Cause
The optical port on the ONT is abnormal.
l
The fiber connected to the ONT is faulty.
l
The optical power of the ONT is not within the
l
normal range.
The ONT does not exist.
l
The maximum logic distance configured for the
l
OLT port is inconsistent with the actual distance.
The automatically finding function is disabled on
l
the OLT port.
When the ONT is added, the configured SN is
l
inconsistent with the actual MAC address of the
ONT.
An ONT with the same SN is already connected to
l
the OLT.
The subscriber terminal or the subscriber loop is
l
faulty.
The PON port is faulty.
l
The data configuration of the upper-layer device is
l
incorrect.
The PON board is faulty.
l
The optical path is faulty.
l
The control board or the uplink interface board is
l
faulty.
There are network attacks.
l
Check whether the PC route conflict exists.
l
Check whether the WAN port obtains the address
l
successfully.
Check whether the IP address segment obtained by
l
the PC is correct.
Check whether the ONT WAN port and the ONT
l
address can be successfully pinged.
Check whether the WAN MAC of ONT MAC
l
address is all Fs.
The NAT conversion function for the bound WAN
l
port is not enabled.
The LAN port is a L2 port, but the PC does not obtain
l
the public network address.
5 Troubleshooting
5-3