V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

BIP
       Bit Interleaved Parity (SONET, ..., BIT)


The Free On-line Dictionary of Computing (30 December 2018):

BIP

   An incorrect singular of BIPS.  One billion instructions per
   second is 1 BIPS, not 1 BIP.