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Quick Installation Guide
8
Switching Criteria 
Network Bridging Function
Filtering, forwarding and learning
Switching Method
Store-and-forward
Address Table
4K entries total
Queue Buffer
2M bit per system 
Address Resolution
Fast hashing scheme 
Traffic Control
Flow Control
Back pressure for half duplex,
IEEE802.3x for full duplex
Broadcast Suppression
Traffic throttled above a critical threshold
Troubleshooting 
Diagnosing Switch Indicators
The switch can be easily monitored through panel indicators to assist the network 
manager in identifying problems. This section describes common problems you may 
encounter and possible solutions. 
Symptom:Link indicator does not light up (green) after making a connection.
Cause:
Network interface (e.g., a network adapter card on the attached device), 
network cable, or switch port is defective.
Solution: Verify that the switch and attached device are powered on. Be sure the 
cable is plugged into both the switch and corresponding device. Check 
that the proper cable type is used and its length does not exceed specified 
limits. Check the adapter on the attached device and cable connections 
for possible defects. Replace the defective adapter or cable if necessary. 
Symptom:Power indicator does not light up (green) after power on.
Cause:
Defective power outlet, power cord, or internal power supply.
Solution: Check the power outlet by plugging in another device that is functioning 
properly. Check the power cord with another device. If these measures 
fail to resolve the problem, have the unit’s power supply replaced by a 
qualified distributor.
Power and Cooling Problems
If the power indicator does not turn on when the power cord is plugged in, you may 
have a problem with the power outlet, power cord, or internal power supply as 
explained in the previous section. However, if the unit powers off after running for a 
while, check for loose power connections, power losses or surges at the power 
outlet, and verify that the fans on the right side of the unit are unobstructed and 
running prior to shutdown. If you still cannot isolate the problem, then the internal 
power supply may be defective. In this case, contact your distributor for assistance.