14 VCS

VCS mode types

Beginning with Network OS 4.0, VCS mode encompasses two mode types:

Fabric cluster mode (shown in Figure 154)—The data path for nodes is distributed, but the configuration path is not distributed. Each node maintains its configuration database independently.

Logical chassis cluster mode (shown in Figure 155)—Both the data and configuration paths are distributed. The entire cluster can be configured from the principal node. Logical chassis mode requires Network OS 4.0 or later.

FIGURE 154 Fabric cluster mode

FIGURE 155 Logical chassis cluster mode

For more information about fabric cluster and logical chassis cluster modes, refer to the Network OS Administrator’s Guide.

The term VCS mode refers to both fabric cluster mode and logical chassis cluster mode unless otherwise indicated.

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Brocade Communications Systems IP250 user manual VCS mode types, Fabric cluster mode