1) High performance routing 
[gene] Haptoglobin-related protein is a protein that in humans is encoded by the HPR gene. The HPR gene affects hereditary immunity to a non-pathogenic species of African trypanosomes. ...
High Performance Routing [IBM]
High Performance Routing. Second-generation routing algorithm for APPN. HPR provides a connectionless layer with nondisruptive routing of sessions around link failures, and a connection-oriented layer with end-to-end flow control, error control, and sequencing. Compare to ISR. See also APPN.