Specifications

A.17 Summary of Important Configuration Features
A–40 FDDI Configuration Capabilities
A.17.5 Dual Ring of Trees Topology
DEChub 900s can participate in a dual ring of trees topology as either part of the
dual ring or as part of the tree. For example, a dual ring of trees can be constructed
by first building a dual ring, then a tree, and connecting them together with a cable
on the front panel (see Figure A–31).
Figure A–31 Legal Dual Ring of Trees Topology
Note that while the connections are all in one network, MultiChassis Manager man-
ages the connections as though they are in unconnected LANs.
A dual ring of trees is not supported across the backplane. Figure A–32 illustrates an
illegal or unsupported dual ring of trees topology.
Front Panel Ports
LKG-10090-96F
Backplane Ports
ABMS
BA MSM