NOTE
If the test result is "send packet fail", "DHCP server not found", "DHCP server refuse request", or "get IP
overtime", the upper-layer device of the MA5612 is faulty.
l If the test result is "get IP successful", go to Step 2.
Step 2 Check the user terminal.
1. Replace the user's PC with another one and then perform a dialup test to check whether the
new PC can obtain an IP address.
l If the new PC can obtain an IP address, the fault is on the user's PC. Check whether the
PC's NIC is faulty or disabled, and address the problem. Then, go to Step 10.
l If the new PC fails to obtain an IP address, go to Step 2.2.
2. Replace the user terminal with another one and then check whether the new user terminal
can obtain an IP address.
l If the new user terminal can obtain an IP address, go to Step 10.
l If the new user terminal fails to obtain an IP address, go to Step 3.
Step 3 Check the interoperability between the user terminal and the MA5612.
1. In ETH mode, run the display port state portid command on the MA5612 to check whether
Active State of the Ethernet port is active.
l If Active State of the Ethernet port is active, go to Step 3.3.
l If Active State of the Ethernet port is not active, go to Step 3.2.
2. Run the undo shutdown portid command to activate the Ethernet port. Then, check
whether it is in the active state.
l If it is in the active state, go to Step 3.3.
l If it is not in the active state, go to Step 3.9.
3. Run the display port state portid command to check whether Link of the Ethernet port is
online.
l If Link of the Ethernet port is online, go to Step 3.4.
l If Link of the Ethernet port is not online, go to Step 3.5.
4. Check whether the PC can obtain an IP address.
l If the PC can obtain an IP address, go to Step 10.
l If the PC fails to obtain an IP address, go to Step 4.
5. Check the quality of the physical line between the MA5612 and the user terminal to
determine whether the line is not connected properly or the line is old. Reconnect the line
properly or replace the old line as needed to ensure good line quality. Then, check whether
Link of the Ethernet port is online.
l If Link of the Ethernet port is online, go to Step 3.6.
l If Link of the Ethernet port is not online, go to Step 3.7.
6. Check whether the PC can obtain an IP address.
l If the PC can obtain an IP address, go to Step 10.
l If the PC fails to obtain an IP address, go to Step 4.
7. In ETH mode, run the display port state portid command to check whether the duplex
mode, rate, and network cable adaptation mode of the Ethernet port are consistent with
those of the user terminal.
l If they are consistent, go to Step 3.9.
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.
41
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