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4. Troubleshooting
This section is intended to help you solve the most common problems on the 3-slot
Gigabit Chassis switch.
Incorrect connections
The switch port can auto detect straight or crossover cable when you link switch with
other Ethernet device. For the UTP connector should use correct UTP or STP cable,
10/100Mbps port use 2 pairs twisted cable and Gigabit 1000T port use 4 pairs twisted
cable. If the UTP connector is not correct pin on right position then the link will fail.
For fiber connection, please notice that fiber cable mode and fiber module should be
match.
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 a different cable.
Non-standard cables
Non-standard and miss-wired cables may cause numerous network collisions and
other network problem, and can seriously impair network performance. A category
5-cable tester is a recommended tool for every 100Base-T 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 (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