INM Release 4.1 Planning Guide PG OC 98-13 Issue 1.2177 of 202TCP/IP Network RequirementsThis section provides a general description of ethernet networks, TCP/IP andX.25 protocols and the requirements needed to support the operation of INMBroadband.EthernetThe ethernet protocol is a standard defined by the Institute of Electrical andElectronics Engineers (IEEE) for communication networks. The IEEEstandard 802.3 defines the layer 2 functionality in the protocol stack shownbelow.Figure 49. OSI 7 Layer Protocol Stack NM-00014(R5)The characteristics of a 10-Base-T Ethernet network are:• Maximum speed of 10 Mbits/sec• Maximum number of 100 Ethernet devices per network• Carrier Sense Multiple Access with Collision Detection (CSMA/CD)media access controlTable 46ApplicationPresentationSessionTransportNetworkData LinkPhysical7654321
