Transition Networks MIL-SM808GPXX - Manual (Page 115)

109
7.
Troubleshooting
This section is intended to help you solve some common problems
encountered while using the MIL-SM808G switch series.
Incorrect connections
Faulty or loose cables
Look for loose or obviously faulty connections. If they appear to be OK,
make sure the connections are snug. If that does not correct the problem,
try different cables.
Non-standard cables
Non-standard and miswired cables may cause numerous network
collisions and other network problems. This can seriously impair network
performance. A category 5 cable tester is a recommended tool for every
network installation.
Improper Network Topologies
It is important to make sure that you have a valid network topology.
Common topology faults include excessive cable length and too many
repeaters or hubs between end nodes. In addition, you should make sure
that your network topology contains no data path loops. Between any two
ends nodes,
there should be only one active cabling path at any time.
Data path loops will cause broadcast storms that will severely impact your
network performance.