Fault Location
Location Analysis
Possible Causes
MA5612
The Internet access rate on a single
port is low.
l
The rate restriction configuration
for the user is incorrect.
l
Certain users' Internet access
rates are restricted on the BRAS.
The Internet access rates on all
MA5612 ports are low.
l
A user's MAC address has drifted
between MA5612 ports.
l
The upstream bandwidth on the
MA5612 is insufficient.
Upper layer
BRAS
Only certain users' Internet access
rates are low; the services of other
users on the BRAS are normal.
Certain users' Internet access rates
are restricted on the BRAS.
CAUTION
To facilitate fault report, save the results of the following steps.
Procedure
Step 1
Determine the fault range when identifying the fault causes.
l
If the Internet access rates of only certain users on the MA5612 are low whereas the rates of
other users are normal, go to
l
If the Internet access rates of all users on the MA5612 are low, go to
.
Step 2
Check the user terminal.
1.
Replace the user's PC and test whether the Internet access rate is normal.
l
If the Internet access rate is normal, the fault is on the PC. Check whether the NIC in
the user's PC is faulty, the PC is infected with viruses, the PC is slow to respond after
running for a long time, or the PC's configuration is low. Then, go to
.
l
If the Internet access rate is low, go to
.
2.
Replace the user terminal, and then check whether the Internet access rate is normal.
l
If the Internet access rate is normal, go to
.
l
If the Internet access rate is low, go to
.
Step 3
Check whether the line between the MA5612 and the user terminal is normal.
1.
Check whether cyclic redundancy code (CRC) loss occurs on the subscriber line.
l
If CRC loss occurs on the subscriber line, go to
.
l
If CRC loss does not occur on the subscriber line, go to
.
SmartAX MA5612 Multi-service Access Module
Maintenance Guide
4 Troubleshooting Services Transmitted Through a GE Port
Issue 01 (2012-07-25)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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