ZyXEL Communications ETHERNET SWITCHES ES-1016, User Manual

Dimension ES-1016/ES-1024 Ethernet Switch 

Troubleshooting 

3-9

Table 3-3 Troubleshooting FD/COL LED  

STEP  

CORRECTIVE ACTION 

2 

Your network is busy. Try sending large files later, reduce the number of users or segment 
your network.  

3.2 

Improper Network Cabling and Topology 

Improper network cabling or topology setup is a common cause of poor network performance or even network 
failure.  

Table 3-4 Troubleshooting Improper Network Cabling and Topology 

DESCRIPTION  

PROBLEMS AND CORRECTIVE ACTION 

Faulty cables 

Using faulty network cables may affect data rates and have an impact on your 
network performance. Replace with new standard network cables.  

Non-standard 
network cables 

Non-standard cables may increase the number of network collisions and 
cause other network problems that affect your network performance. Refer to 
the 

Front Panel Connections 

section for more information on network cable 

types.  

Cabling Length  

If you use longer cables than are needed, transmission quality may be 
affected. 
The network cables should not be longer than the limit of 100 meters.    

Too many hubs 
between the 
computers in the 
network  

Too many hubs (or repeaters) between the connected computers in the 
network may increase the number of network collision or other network 
problems. Remove unnecessary hubs from the network.  

A loop in the data 
path 

A data path loop forms when there is more than one path or route between 
two networked computers. This results in broadcast storms that will severely 
affect your network performance. Make sure there are no loops in your 
network topology.