PPT
... • The Internet and Web: What’s the Difference? The Internet is the physical connection of millions of networks. The Web uses the Internet for its existence The Web consists of hypertext embedded on Web pages that are hosted on Web sites Web browsers display a Web document and enable users to link t ...
... • The Internet and Web: What’s the Difference? The Internet is the physical connection of millions of networks. The Web uses the Internet for its existence The Web consists of hypertext embedded on Web pages that are hosted on Web sites Web browsers display a Web document and enable users to link t ...
OSI Model
... TCP / IP – Transmission Control Protocol / Internet Protocol Developed prior to the OSI model Layers of TCP/IP do not match exactly with those in the OSI model Used in the Internet Ability to connect multiple networks in a seamless way was one of the major design goals which led to development of TC ...
... TCP / IP – Transmission Control Protocol / Internet Protocol Developed prior to the OSI model Layers of TCP/IP do not match exactly with those in the OSI model Used in the Internet Ability to connect multiple networks in a seamless way was one of the major design goals which led to development of TC ...
Local area Network
... Each layer is built on the one below it The purpose of each layer is to offer services to the other layer The number and function of layers may vary among different networks. ...
... Each layer is built on the one below it The purpose of each layer is to offer services to the other layer The number and function of layers may vary among different networks. ...
domain name system
... Packet Switching • To improve the efficiency of transferring information over a shared communication line, messages are divided into fixed-sized, numbered packets • Network devices called routers are used to direct packets between networks Figure 15.4 Messages sent by packet switching ...
... Packet Switching • To improve the efficiency of transferring information over a shared communication line, messages are divided into fixed-sized, numbered packets • Network devices called routers are used to direct packets between networks Figure 15.4 Messages sent by packet switching ...
Key Terms
... Session, and Transport layers of the OSI Model and runs directly over IPX. NetWare servers and routers use SAP to advertise to the entire network which services they can provide. ...
... Session, and Transport layers of the OSI Model and runs directly over IPX. NetWare servers and routers use SAP to advertise to the entire network which services they can provide. ...
Network Layer 2 - Faruk Hadziomerovic
... Fragmentation when the elementary data size is 1 byte. (a) Original packet, containing 10 data bytes. (b) Fragments after passing through a network with maximum packet size of 8 payload bytes plus header. (c) Fragments after passing through a size 5 gateway. ...
... Fragmentation when the elementary data size is 1 byte. (a) Original packet, containing 10 data bytes. (b) Fragments after passing through a network with maximum packet size of 8 payload bytes plus header. (c) Fragments after passing through a size 5 gateway. ...
- Home - KSU Faculty Member websites
... • The Internet Protocol (IP) is the most widely used network-addressing scheme • IP is a connectionless, unreliable, best-effort delivery protocol • IP does not verify that the data reaches its destination; this function is handled by the upper layer protocols ...
... • The Internet Protocol (IP) is the most widely used network-addressing scheme • IP is a connectionless, unreliable, best-effort delivery protocol • IP does not verify that the data reaches its destination; this function is handled by the upper layer protocols ...
Firewalking
... • Some integrate the identity of users into rule set • Bind ID to IP or MAC address (Not the best way) • Authpf on BSD systems loads firewall rules per user after SSH authentication ...
... • Some integrate the identity of users into rule set • Bind ID to IP or MAC address (Not the best way) • Authpf on BSD systems loads firewall rules per user after SSH authentication ...
CS514-lec
... on the net and slow the transfer down by 7% for this purpose! • But the end-to-end argument would not apply if: – p or n is large, hence (1-p)n approaches 0 – cost of recovery when a problem occurs is very high – reliability property is hard for users to implement ...
... on the net and slow the transfer down by 7% for this purpose! • But the end-to-end argument would not apply if: – p or n is large, hence (1-p)n approaches 0 – cost of recovery when a problem occurs is very high – reliability property is hard for users to implement ...
UNIT 5. Instruction to Computer Networks
... A hub is a device that connects several nodes of a LAN A repeater amplifies and regenerates signals so they can retain the strength to reach their destinations Hub is basically a multiport repeater. Layer 1 device ...
... A hub is a device that connects several nodes of a LAN A repeater amplifies and regenerates signals so they can retain the strength to reach their destinations Hub is basically a multiport repeater. Layer 1 device ...
EE 3760 chapter 7 - Seattle Pacific University
... • Used from LANs to The Internet • Routers are the key ...
... • Used from LANs to The Internet • Routers are the key ...
Lecture3_Networking_..
... Set of rules for sending and receiving data across a physical network Also consists of software to implement these rules Physical topology lays out the physical devices; logical topology instructs the hardware how to separate the data into packets; protocols handle the translation from software to t ...
... Set of rules for sending and receiving data across a physical network Also consists of software to implement these rules Physical topology lays out the physical devices; logical topology instructs the hardware how to separate the data into packets; protocols handle the translation from software to t ...
Networking
... networking CSMS/CD is one “access method” protocol discussed operating at layer 2 High level protocols to transfer data operate at layer 3 and 4 of the OSI Model, ARP is used to match these to the MAC address at layer 2 TCP/IP is the de-facto protocol now used for LAN’s and the Internet Finally, we ...
... networking CSMS/CD is one “access method” protocol discussed operating at layer 2 High level protocols to transfer data operate at layer 3 and 4 of the OSI Model, ARP is used to match these to the MAC address at layer 2 TCP/IP is the de-facto protocol now used for LAN’s and the Internet Finally, we ...
Introduction - Reference Models
... • Service, interface, and protocol not distinguished • Not a general model • Host-to-network “layer” not really a layer • No mention of physical and data link layers • Minor protocols deeply entrenched, hard to replace ...
... • Service, interface, and protocol not distinguished • Not a general model • Host-to-network “layer” not really a layer • No mention of physical and data link layers • Minor protocols deeply entrenched, hard to replace ...
Internet Vulnerabilities & Criminal Activities
... Protocol • IP - Internet Protocol • TCP - Transmission Control Protocol • UDP - User Datagram Protocol ...
... Protocol • IP - Internet Protocol • TCP - Transmission Control Protocol • UDP - User Datagram Protocol ...
ppt
... Represented by something over some medium by something Started with terminals connect to computers Communicated by voltages (currents) on wires (teletype) ...
... Represented by something over some medium by something Started with terminals connect to computers Communicated by voltages (currents) on wires (teletype) ...
ch02
... compression, and encryption. example of a presentation service would be the conversion of an EBCDIC-coded text computer file to an ASCII-coded file. ...
... compression, and encryption. example of a presentation service would be the conversion of an EBCDIC-coded text computer file to an ASCII-coded file. ...
William Stallings Data and Computer Communications
... Modular and hierarchical like the OSI model Descriptive in nature compared to prescriptive nature of OSI OSI dictates that protocols in a layer perform certain functions In TCP/IP, it is possible to have two protocols in same layer with different functionality ...
... Modular and hierarchical like the OSI model Descriptive in nature compared to prescriptive nature of OSI OSI dictates that protocols in a layer perform certain functions In TCP/IP, it is possible to have two protocols in same layer with different functionality ...
No Slide Title - Ed Lazowska
... Using TCP/IP and lower layers, we can get multipacket messages delivered reliably from address space A on machine B to address space C on machine D, where machines B and D are many heterogeneous network hops apart, without knowing any of the ...
... Using TCP/IP and lower layers, we can get multipacket messages delivered reliably from address space A on machine B to address space C on machine D, where machines B and D are many heterogeneous network hops apart, without knowing any of the ...
Deitel & Associates, Inc.
... – Server attempts to satisfy each request, then issues a response specifying the result ...
... – Server attempts to satisfy each request, then issues a response specifying the result ...
Local-area network
... been used to administer LANs – Ring topology A configuration that connects all nodes in a closed loop on which messages travel in one direction – Star topology A configuration that centers around one node to which all others are connected and through which all messages are sent – Bus topology All no ...
... been used to administer LANs – Ring topology A configuration that connects all nodes in a closed loop on which messages travel in one direction – Star topology A configuration that centers around one node to which all others are connected and through which all messages are sent – Bus topology All no ...
Cross layer design for Wireless networks
... Lecture 12: Cross Layer Design (CLD) for Wireless Networks ...
... Lecture 12: Cross Layer Design (CLD) for Wireless Networks ...
02-design
... • Implementing a functionality at a lower level should have minimum performance impact on the applications that do not use the functionality ...
... • Implementing a functionality at a lower level should have minimum performance impact on the applications that do not use the functionality ...
Recursive InterNetwork Architecture (RINA)
The Recursive InterNetwork Architecture (RINA) is a computer network architecture that unifies distributed computing and telecommunications. RINA's fundamental principle is that computer networking is just Inter-Process Communication or IPC. RINA reconstructs the overall structure of the Internet, forming a model that comprises a single repeating layer, the DIF (Distributed IPC Facility), which is the minimal set of components required to allow distributed IPC between application processes. RINA inherently supports mobility, multi-homing and Quality of Service without the need for extra mechanisms, provides a secure and programmable environment, motivates for a more competitive marketplace, and allows for a seamless adoption.