Enterasys Vertical Horizon VH-2402S2, Configuration Manual

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92 Spanning Tree Concepts VH-2402S2
Spanning Tree Protocol in a Network
Figure A-1 illustrates the use of three VH-2402S2 switches to establish an
effective Spanning Tree configuration. Switches A, B and C are
connected together in a redundant topology (more than one path between
two points). If the connection between A and B goes down, the link
between A and C becomes active, thereby establishing a path between A
and B through switch C. Additionally, if the connection between B and C
goes down, the link between A and C becomes active, establishing a path
between B and C through switch A.
Figure A-1. Spanning Tree Using VH-2402S2 Switches