Chapter 6. SP Switch Routers 9077
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Another example is a two-frame system with one switch. The first frame is fully
populated with eight wide nodes. The second frame has three wide nodes in
system node positions 17, 19, and 21. The only valid switch ports in this
configuration would be those switch ports associated with system node numbers
23, 25, 27, 29, and 31 in the second frame.
In a four-frame system with an SP Switch and fourteen high nodes, there will be
only two empty node positions. In this example, the first three frames are fully
populated with four high nodes in each frame. The last frame has two high nodes
and two empty high node slots. This means the system has two valid switch ports
associated with system node numbers 57 and 61.
Using node slot positions within a wide or high node
The first example is a single frame with an SP Switch and eight wide nodes.
These wide nodes occupy the odd numbered node slots. Therefore, all of the
even number slots are said to be unoccupied and would have valid switch ports
associated with them. These ports may be used for an SP Switch Router
adapter.
A second example is a single frame system with an SP Switch, twelve thin nodes
in slots 1 through 12, and a high node in slot 13. A high node occupies four slots
but only uses one switch port. Therefore, the only valid switch ports in this
configuration are created by the three unused node slots occupied by the high
node. In other words, the switch ports are associated with node slots 14, 15, and
16.
Summary of Contents for RS/6000 SP
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