eTwinning - TCP/IP: network access layer

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eTwinning - TCP/IP: network access layer

  1. 1. 28-02-2009
  2. 2. <ul><li>I will present the TCP/IP network access layer, which is also called the host-to- network layer. </li></ul>
  3. 3. <ul><li>The network access layer allows an IP packet to make a physical link to the network media. </li></ul><ul><li>It includes the LAN and WAN technology details and all the details contained in the OSI physical and data link layers. </li></ul>
  4. 4. <ul><li>Drivers for software applications, modem cards, and other devices operate at the network access layer. </li></ul><ul><li>Modem protocol standards such as Serial Line Internet Protocol (SLIP) and Point-to- Point Protocol (PPP) provide network access through a modem connection. </li></ul>
  5. 5. <ul><li>Many protocols are required to determine the hardware, software, and transmission- medium specifications at this layer. </li></ul><ul><li>Most of the recognizable protocols operate at the transport and Internet layers of the TCP/IP model. </li></ul>
  6. 6. <ul><li>Network access layer protocols also map IP addresses to physical hardware addresses and encapsulate IP packets into frames. </li></ul><ul><li>The network access layer defines the physical media connection based on the hardware type and network interface. </li></ul>
  7. 7. <ul><li> </li></ul><ul><li>TCP/IP network access layer find best physical way to communication </li></ul>

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