Ring Topology

SummitStack nodes should be connected to each other in a ring topology. In a ring topology, one link is used to connect to a node and the other link is used to connect to another node. The result forms a physical ring connection. This topology is highly recommended for normal operation.

Graphical Representation of a Ring Topology represents a maximal ring topology of eight active nodes.

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Graphical Representation of a Ring Topology
../Graphics/BD_163_Nodes_drawing_3.svg

Switches Connected to Each Other in a Ring Topology shows what the same ring topology would look in actual practice. Each switch in the rack is connected to the switch above it and the switch below it. To complete the ring, a longer cable connects Switch 1 with Switch 8.

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Switches Connected to Each Other in a Ring Topology
../Graphics/BD_159A_Summit450s_in_ring_topology.svg

Note that, while a physical ring connection may be present, a ring active topology exists only when all nodes in the stack are active.