00650nam a2200193Ia 450000500170000000800410001702000180005804000180007604100080009408200210010210000190012324500800014225000120022226000470023430000280028165000600030965000490036965000380041820230522103118.0210716s1993    xx            000 0 und d  a9789332549524  cAIMIT LIBRARY  aeng  a004.65 22bBLAU  aBlack, Uyless.  aComputer networks: bProtocols standards and interfaces /cBy Uyless Black.  a2nd ed.  aNew Delhi :bPHI Learning Pvt Ltd ,c2015.  axii,436p. ;bPBc23 cm.  aCommunication between and among computers and terminals  aLayered protocols networks and the OSI model  aSwitching and routing in networks