User Guide

TokenSpeed Module Applications
893-01019-A 2-5
Replacing a Source Route Bridge or Router
Figure 2-4 shows a network in which a Centillion switch replaces three source
route bridges.
Figure 2-4. Replacing a source route bridge or router
Concentrating Rings into a Router
To concentrate rings into a router, make sure virtual rings in the network are set up
in one of the following two ways:
• To segment a congested ring without using new router ports, be sure that all
stations previously connected to a single router port are in the same virtual
ring (refer to Using SpeedView 2.1 for Windows). The router will continue
to view the network the same way it did before the rings were segmented.
• To concentrate multiple, small ring segments into a router subnet and to free
router ports, be sure all segments are in the same virtual ring so that you can
group the entire virtual ring into a single router port. Be sure that the number
of devices in the virtual ring does not exceed the subnet size defined on the
router.
Backbone hub 1 Backbone hub 2
Centillion 100
token ring
switch
Backbone ring
Before
User
rings
User
rings
BridgeBridge Bridge
After
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TKNSPD.BK Page 5 Thursday, July 17, 1997 11:43 AM