Fabric Manager Users Guide, Version 6.1, Revision A - QLogic

3–Fabric Manager Configuration
Configuring the QLogic Fabric Manager
Figure 3-1. Example of a 2D Torus Fabric Configuration
If a dimension is toroidal, that is, the switches along the edges of the dimension
are wrapped around and connected together then the dimension must be defined
as Toroidal by setting the Toroidal parameter for the dimension to be 1. If a
dimension is not specified as toroidal, any such wrap around links will be ignored.
The Fabric Manager will generate warnings in the log file for the ISLs that it finds
which are not consistent with how the topology has been defined in the
MeshTorusTopology section of the configuration file as shown in Table 3-5. The
WarnThreshold parameter can be used to specify the maximum number of
warnings that should be logged for each unique invalid ISL port pair found.
If a given dimension has exactly two planes, then the PortPair can indicate
identical ports are connected such as 3,3 which
indicates port 3 on one switch in the dimension is connected to port 3 on the
neighbor switch in that dimension. Such dimensions cannot be toroidal.
3-18 IB0054608-01 B