Devices Internetworked In The Master Hub; Single Extended Ring Configuration - 3Com CoreBuilder 5000 User Manual

Single Extended
Ring Configuration

Devices Internetworked in the Master Hub

In the master (floor 1) hub, port-switching lobe ports on the Dual Fiber
Repeater Module connect four of the hub's backplane Token Ring
networks to an external bridge/router. The external bridge/router:
Routes traffic between the three networks that service file servers
and the nodes on the building's floors
Communicates across the backplane to a fourth Token Ring network
that attaches to a minicomputer (for example, a database server)
Because all of the ports in this internetwork are port-switchable, the
internetwork is easily organized into four subnetworks, which are
connected by routing traffic through a multiport external bridge/router.
The single extended ring configuration:
Connects users on distant points of a network to one extended local
area network.
Accommodates organizations that have users dispersed in different
areas of a building and want them configured into one Token Ring
LAN.
Dual Fiber Repeater Modules provide main trunk connectivity between
distant CoreBuilder 5000 hubs.
Figure 2-3 shows an extended ring that spans several hubs in a
building. The Token Ring Passive Media Modules in each hub on floor 1
and floor 2 are configured on the same backplane ring (in this case, all
modules are assigned to Ring 1). Assign the Dual Fiber Repeater and
Passive Media Modules to the same backplane ring in both hubs so
that a single data path is used for data transmission.
Configuration Examples 2-17