Compaq WL110, User Manual

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Optimizing Performance 6-5
❏
If the problem is observed on only one Access Point, the problem may
lie in the connectors or cable(s) that connect the Access Point to the hub
or wired backbone.
❏
When the problem exists with multiple Access Points, it is likely to be
caused by the cables or connectors of the wired backbone, hub or the
bridge/router device that connects this network segment to your LAN.
Troubleshooting Cabling Problems
Using the procedure described above, you may have determined the area where
a cabling error might be suspected. To resolve the problem, carefully check the
cabling system in this area to verify whether all connectors are properly seated at
the:
■
Access Points
■
Bridges, routers and hubs
■
Wired stations connected to the cabling system.
If your network uses BNC coax cable (10Base2), make sure that terminators are
placed on both ends.
Checking the Length of Your LAN Segments
In exceptional cases, networking problems may be caused by LAN segments
that have been stretched over (too) large distances.
In these situations, frequent collisions might occur because stations can no
longer detect the carriers transmitted by distant stations. Collided frames will no
longer be received by the addressed station.
The occurrence of a LAN segment system that is too long can be diagnosed with
the remote statistics found on the
Remote
tab in the monitor mode of the
AP Manager.
1. Select
Interface 1: Ethernet
from the pull-down menu to display the statistics
for the Ethernet interface.
2. Compare the number of
In errors
with the number of
Bridge in packets
.
❏
When the number of
In errors
is 1% of the
Bridge in packets
or more, there
may be a cabling problem.
3. Monitor the value increase of the parameter
Bytes in
over a longer period of
time.
❏
When this number increases constantly with more than 600,000 bytes
per second, this may indicate a problem with the length of your LAN
segment.
You may need to consult a network expert to verify and/or adjust the length of
your cable segments.
Note: If you decide to split the LAN (segment) into multiple (sub) segments,
make sure that all 11Mbps Wireless LAN equipped devices will be