00264nam a22001097a 4500008004100000020001800041100002000059245003000079250001200109260002500121300000800146251013b        |||||||| |||| 00| 0 eng d  a0-87692-621-9  aA. S. Tanenbaum  aComputer Networks 2nd Ed.  a2nd Ed.  aNew DelhibPHIc1992  a658