00406nam a2200145 a 450000500170000002000150001708200150003210000230004724500760007025000120014626000390015830000280019763000220022563000130024720251203110915.0  a817758569X  a004.6bSTA  aStallings, William  aHigh - Speed networks and internetsbperformance and quality of service  a2nd Ed.  aNew DelhibPearson Educationc2002  axviic715p.c28 cm.cPB  aComputer networks  aInternet