SAGEM 3P@C

13.1.3.Layer-3 Check

If some network segments cannot be used for L3 forwarding, and no problems are found in the L2 check, it can be conducted:

Step 1

show ip route

Check the content of the route table, the

 

 

correctness of the route table, and whether

 

 

the configured static route and the

 

 

OSPF/RIP route have been learnt and the

 

 

selection of routes is correct.

Step 2

show interface <ifname>

Check whether the related interfaces are

 

 

correctly “upped”.

Step 3

show ip route cache

Check the correctness of the bottom layer

 

 

host route table.

13.1.4.Service Check

If the Modem has not been synchronized, the following check should be done:

„Whether the port has been enabled

„For the ADSL access, check the pvc setting using the show pvc command.

„Check the setting of ports, and view the configuration information using the command, show port [<portlist>allactive] [adslvdsl] line-config.

13.2.Unstable Service due to Wrong Making of Network Cables

Basic Information

Name of case

Unstable service due to wrong making of network

 

cables

Product name

3P@C 4450E

Module type and version

DS-4TXB

Software version

None

Since the implementing party lacks sufficient knowledge of making network cables, assuming that the linear ordering of the two ends is the same, the actual service cannot be stably run for a long time after being commissioned. For the physical problem location of this kind, the engineers should be careful enough and improve their understanding of the Ethernet auto-negotiation and basic principles of communication.

13.2.1.Common Causes

Mismatched working modes of the interconnected ports between both parties

Problem of network adapter

Problem of network

Problem of port module

3P@C Installation Manual

Page 13-2

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