Describing Bridge/Management Mode Capabilities - Cabletron Systems TRBMIM-T User Manual

INTRODUCTION
Collapsed Backbone Configuration
Figure 1-4 illustrates how multiple TRBMIM-Ts can be used in the
MMAC to constitute a single collapsed backbone ring to provide network
connectivity for multiple rings, running at either 4 Mbps or 16 Mbps ring
speeds and linked to the backbone via either twisted pair copper or fiber
media. In this configuration each TRBMIM-T's FNB port is connected to
a common FNB ring in the MMAC. Each TRBMIM-T's front-panel
bridge Station port is connected to a separate ring via cable to any lobe
port on any MIM on each ring.
16 Mbps
4 Mbps
16 Mbps
4 Mbps
Fiber
Twisted Pair

1.4.2 Describing Bridge/Management Mode Capabilities

This section describes the optional functionality provided by the
TRBMIM-T when configured to operate in the combination
Bridge/Management mode. You can use the TRBMIM-T in the
Bridge/Management mode when you want to establish an additional
Token Ring in the MMAC that already supports either an Ethernet or a
Token Ring LAN. See Section 2.3 for Bridge/Management mode
requirements.
1-8
FNB Ring
16 Mbps
Figure 1-4 Collapsed Backbone Ring
16 Mbps
16 Mbps
16 Mbps