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Glossary of Data Communications Terms
Courtesy Enterprise-Wide Computing, Inc.
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Term:
physical unit (PU)
Definition:
The component that manages and monitors the resources
(such as attached links) associated with a node, as
requested by an SSCP via an SSCP-PU session. This term
applies to type 2.0, type 4, and type 5 nodes only. A node
in an SNA network supporting one or more logical units
(LU).
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