The following references explore the subjects in this chapter further:
Halsall,F. Data Communications, Computer Networks, and Open Systems, Fourth Edition.Reading,Massachusetts:Addison-Wesley Publishing Company,1996.
Perlman,R. Interconnections: Bridges, Routers, Switches and Internetworking Protocols, Second Edition.Reading,Massachusetts:Addison-Wesley Publishing Company,1999.
Peterson,L. and B.S.Davie. Computer Networks: A Systems Approach, Second Edition.San Francisco,California:Morgan Kaufmann Publishers,1999.