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Module Workgroups 2-9
While there is no fiber in this configuration, the fiber equivalent
distance can be calculated as follows:
■ Total amount of cable between workstations:
100 m + 100 m + 100 m + 100 m + 50 m = 450 m
■ Total equivalent distance of the 24-Port modules:
Each hub has an equivalent distance of (420 m + 165 m)
or 585 m
1
.
There are four hubs with a total equivalent distance of
(585 m * 4) or 2340 m
1
(Incoming signal to the UTP port on each hub = 420 m)
(Outgoing signal from the UTP port on each hub = 165 m)
See Table 2-2
for more information on LAN product equivalent
distances.
Although the unshielded twisted pair network example in Figure 2-2
only uses 24-Port modules, it is also possible to use other 10BASE-T
modules.
Total equivalent distance: 450 m + 2340 m = 2790 m
Since the total equivalent distance (2790 m) is less than 4200 meters,
this is a legitimate configuration.
Module
Workgroups
When you set up a 24-Port module as a fully configured workgroup
module, you are actually configuring a logical network that supports up
to six workgroups (isolated networks) per module. Since a managed
CoreBuilder 5000 hub may contain as many as 16 CoreBuilder 5000
24-Port Modules, it is possible to configure your hub with a maximum
of 96 workgroups.
Before you configure your network, however, you should familiarize
yourself with the advantages of creating workgroups in your network.
The following section discusses these advantages.
Although the CoreBuilder 5000 24-Port Module has access to eight
backplane and eight isolated segments, the module only supports
per-port switching on six segments simultaneously.