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Found 1626 Articles for Computer Network
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TCP represents Transmission Control Protocol. It is a transport layer protocol that facilitates the transmission of packets from source to destination. It is a connectionoriented protocol that defines it creates the connection before the communication that appears between the computing devices in a network.TCP organizes information so that it can be sent between a server and a user. It maintains the integrity of the information being communicated over a network. Before it sends data, TCP creates a connection between a source and its destination, which it provides remains live until communication starts. It then divides huge amounts of information into ... Read More
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TCP represents Transmission Control Protocol. It provides reliable data transmission in an IP environment comparable to the OSI model’s Transport layer. The TCP includes stream data transfer dependability, effective flow control, full-duplex services & multiplexing. TCP brought an unordered flow of bytes recognized by sequence number at the destination with current data transfer. This service doesn’t chop data into blocks but groups bytes into segments before handing it to IP for delivery.TCP provides adequacy by supporting the connection-oriented end to end adequate packet delivery by internetwork. It sequences the bytes with a promoting acceptance number that denotes the destination to ... Read More
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The ICMP represents Internet Control Message Protocol. It is a network layer protocol. It can be used for error handling in the network layer, and it is generally used on network devices, including routers. IP Protocol is a best-effect delivery service that delivers a datagram from its original source to its final destination. It has two deficiencies−Lack of Error ControlLack of assistance mechanismsIP protocol also lacks a structure for host and management queries. A host needs to resolve if a router or another host is alive, and sometimes a network manager needs information from another host or router.ICMP has been ... Read More
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Reverse Address Resolution Protocol (RARP) is a network-specific standard protocol. It is described in RFC 903. Some network hosts, such as a diskless workstation, do not know their own IP address when they are booted. To determine their own IP address, they use a mechanism similar to ARP, but now the hardware address of the host is the known parameter, and the IP address is the queried parameter.The reverse address resolution is performed the same way as the ARP address resolution. The same packet format is used for the ARP.An exception is the operation code field that now takes the ... Read More
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Address Resolution Protocol (ARP) is a network-specific standard protocol. The Address Resolution Protocol is important for changing the higher-level protocol address (IP addresses) to physical network addresses. It is described in RFC 826.ARP relates an IP address with the physical address. On a typical physical network such as LAN, each device on a link is identified by a physical address, usually printed on the network interface card (NIC). A physical address can be changed easily when NIC on a particular machine fails.The IP Address cannot be changed. ARP can find the physical address of the node when its internet address ... Read More
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Link state routing is a method in which each router shares its neighbourhood’s knowledge with every other router in the internetwork. In this algorithm, each router in the network understands the network topology then makes a routing table depend on this topology.Each router will share data about its connection to its neighbour, who will, consecutively, reproduce the data to its neighbours, etc. This appears just before all routers have constructed a topology of the network.In LSP, each node transmits its IP address and the MAC to its neighbor with its signature. Neighbors determine the signature and maintain a record of ... Read More
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In this algorithm, to select a route, the algorithm discovers the shortest path between two nodes. It can use multiple hops, the geographical area in kilometres or labelling of arcs for measuring path length.The labelling of arcs can be done with mean queuing, transmission delay for a standard test packet on an hourly basis, or computed as a function of bandwidth, average distance traffic, communication cost, mean queue length, measured delay or some other factors.In shortest path routing, the topology communication network is defined using a directed weighted graph. The nodes in the graph define switching components and the directed ... Read More
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This Algorithm changes its routing persistence to pursue changes within the topology and traffic also. Routing decisions are often changed when network topology and load change. Adaptive routing aims to assist avoid packet delivery failure, improve network performance and relieve network congestion.Adaptive routing can generate nodes to develop into overloaded because of the complex processing decisions they create. Because routers send data about the network topology, adaptive routing is often less ensure than non-adaptive routing processes and needed more bandwidth.It is equivalent to GPS, which uses data about road conditions to redirect drivers, adaptive routing uses data about network congestion ... Read More
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The services of the network layer are routing the packets from source to destination devices. It can do this in a single pass or many passes. The algorithm which selects the routes and data structures that they facilitate is known as the routing algorithm. This is a significant field of network layer design. They are that element of network layer application responsible for transmitting the output channel for an incoming packet.In the case of datagrams, the decisions create new for each appearing data packet, and in the case of the virtual circuit, they are made only once, i.e., when a ... Read More
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Internet Protocol version 6 (IPV 6) is the replacement for version 4 (IPV 4). The phenomenal development of the Internet has begun to push IP to its limits. It provides a large address space, and it contains a simple header as compared to IPv4.Features of IPV6There are various features of IPV6, which are as follows−Larger address space: An IPV6 address is 128 bits long. It is compared with the 32-bit address of IPV4. It will allow for unique IP-addresses up to 3.4 x 1038 whereas IPV4 allows up to 4.3 x 108 unique address.Better Header format: New header form has ... Read More
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