Empson, Scott Hans Roth creator text Indianapolis Pearson 2011 monographic xvi, 184 p. : ill. ; 23 cm. Packet switching (Data transmission) Computer networks Telecommunications engineers Campus network designs VLANs Communications Ether channel Root switch Tree protocol Wireless LANs FC 004.66076 EMP 9781587202483 (pbk) 9788131756294 (pbk)