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1 - 6 ONline 17-Slot System Concentrator Installation and Operation Guide
TriChannel Architecture
The ONline System Concentrator's TriChannel architecture lets you run
Ethernet, Token Ring, and FDDI networks, all in the same concentrator.
This allows a single ONline unit to do the work of three conventional hubs.
You can also run multiple Ethernet networks or mixture of Ethernet, Token
Ring, and FDDI networks in any combination you want. This architecture is
shown in Figure 1-5.
Any module you add to the concentrator can be assigned to any of three
networks on its backplane and can be easily moved to another backplane
network using either an on-board dip switch or remote network
management.
Additionally, any module can be set to “isolated” mode whereby it acts as
an isolated network - not connected to the concentrator backplane. This
mode lets you isolate users from the main network. This can be useful for
security or as a temporary situation to prevent traffic from contaminating
the network (for example, if some users are conducting network tests or
running at very high loads.)
Port-Switching Technology
Available port-switching modules allow you to assign any port to any
backplane network using a network management command. This allows
you to perform moves, adds, and changes at the network console, saving
costly and time-consuming trips to the wiring closet. It also allows you to
get additional bandwidth on demand by switching users to lower volume
networks during peak traffic periods.