Xerox KS-801 - Manual (Page 20)

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The following figure illustrates an example of 2-port trunk connection
between switch A and switch B. The aggregated bandwidth of the trunk
is 400Mbps.
Rules :
1. One switch can be configured to have up to 2 trunks and each trunk
is composed of 2 trunking ports.
2. One trunking port can only belong to one trunk.
3. Only one trunk can exist between two switch units.
4. Crossover UTP cables should be used at the same time for one trunk
connection. The length of each cable can be up to 100 meters.
5. When the switched data ports are enabled as trunking ports, they
can only serve trunking function, but no other data function.
6. Since the trunking is proprietary, the switches do not support trunk
connection to other brand switches.