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Introduction to Packet Accelerator (PA )

Introduction to Packet Accelerator (PA ). Communication Models. DARPA Model. OSI Model. Application. Presentation. Application TELNET FTP SMTP. Session. Transport. Host-to-Host TCP UDP. Network. Internet IP. Data Link. Network Access Ethernet ARP FDDI.

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Introduction to Packet Accelerator (PA )

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  1. Introduction toPacket Accelerator (PA)

  2. Communication Models DARPA Model OSI Model Application Presentation Application TELNET FTP SMTP Session Transport Host-to-Host TCP UDP Network Internet IP Data Link Network Access Ethernet ARP FDDI Physical

  3. OSI (Open Systems Interconnection) Layers OSI Model Application Presentation Session Transport Network Data Link Physical

  4. Transport Layer 4 UDP, TCP, DCCP, SCTP Common Ports

  5. Network Layer 3 Ipv4, Ipv6, ICMP, ICMPv6, ECN,IGMP • IpSec (tunneling) – encryption of the IP addresses and assignment of new IP addresses (Virtual Private Network) • Same destination might have multiple new IP addresses

  6. Data Link Layer 2 Ethernet 802.3, Token Ring 802.5, PPP, X.25, FDDI, ISDN, Frame Relay, ECN,IGMP

  7. Sending and Receiving a Packet Application Layer Presentation/Session Transport Layer Layer 4 Port Number & Checksum Network Layer 3 IP Address Data Link Layer 2 MAC address & FCS Physical

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