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3.9.2. Port Configuration
The factory default for all ports is “STP Enabled”. This means that, in theory, the ring can be
created using any desired port. To optimally distribute the load across the network, it is possible
to define that the data packet flow be channelled using Path Cost. The term “ Path Cost”
originates from the time when lines were leased for A to B connections which meant that they
were expensive.
Example:
In a larger ring with numerous terminal devices and larger data volumes it makes sense to
channel the data flow within the ring to distribute the load evenly across the switches (load -
sharing). To achieve this, the path cost needs to be defined.
In the above example, the network consists of two central switches (A+B) and 5 other switches
that form the ring. All in all, 21 cameras have been installed
− each supplying 5 Mbps of video
data, i.e. a total of over 100 Mbps of data.
Data flow
Data flow
Path Cost
20000
Summary of Contents for L Series
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