Specifications

3-5
TOKEN RING DEVICES AND APPLICATIONS
Figure 3-3. Expanded Token Ring Network
MULTIPLE TOKEN RINGS IN ONE MMAC
More than one Token Ring can be configured in an MMAC. Cabletron
Systems provides a variety of Media Interface Modules (MIMs) to provide
flexibility in configuring and managing separate rings in an MMAC.
TRXMIMs and TDRMIMs used in conjunction with TRMM-2 or TRMM-4
multi-channel management modules allow you to assign individual ports
supported by the same MIM to different rings.
A TRMMIM, for example, which splits the FNB backplane can be used in
conjunction with a master management module to provide management
to an additional ring in the MMAC. You can use multiple TRMMIMs in
the same MMAC to configure multiple rings.
Multiple rings can also be established through the chassis management
application. Figure 3-4 shows various multiple ring configurations in the
MMAC.
MMMM
MicroMMAC-T & STH Stack
MMAC
Ring Out Ring In
Ring In
Ring Out