ppt - UCL Computer Science
... received incorrectly • BER models independent, randomly distributed errors • In reality, errors often bursty – unpredictable, so hard to filter – corrupt contiguous bits during noise burst – greater bit rate more corrupted bits / burst ...
... received incorrectly • BER models independent, randomly distributed errors • In reality, errors often bursty – unpredictable, so hard to filter – corrupt contiguous bits during noise burst – greater bit rate more corrupted bits / burst ...
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 ...
Document
... 1. Application layer add application protocol header. 2. Transport layer add TCP or UDP header and breaks into Segment which has TCP header and data. 3. Network layer adds logical address header and the PDU packets have IP header and data 4. Data link layer adds header including destination MAC addr ...
... 1. Application layer add application protocol header. 2. Transport layer add TCP or UDP header and breaks into Segment which has TCP header and data. 3. Network layer adds logical address header and the PDU packets have IP header and data 4. Data link layer adds header including destination MAC addr ...
tutorial 1 - UniMAP Portal
... (a) Determining the best path to route packets. (b) Providing end-to-end communications with reliable service. (c) Providing node-to-node communications with reliable service. 11. Give two features that the data link layer and transport layer have in common. Give two features in which they differ. H ...
... (a) Determining the best path to route packets. (b) Providing end-to-end communications with reliable service. (c) Providing node-to-node communications with reliable service. 11. Give two features that the data link layer and transport layer have in common. Give two features in which they differ. H ...
Introducing Network Standards
... Determines the best route on the network based on network conditions, priority of service ...
... Determines the best route on the network based on network conditions, priority of service ...
Solution
... "bridging" approach of problem 16, which remains in the data link layer. However, the network layer may be more appropriate(2) because it provides for the transfer of data in the form of packets across the communication network. A key aspect of this transfer is the routing of the packets from the so ...
... "bridging" approach of problem 16, which remains in the data link layer. However, the network layer may be more appropriate(2) because it provides for the transfer of data in the form of packets across the communication network. A key aspect of this transfer is the routing of the packets from the so ...
Editorial - Expert Update
... held on the 13th of December 2016. The workshop was organised by Dr Frederic Stahl from the University of Reading. This workshop's focus was on the Velocity dimension of Big Data Analytics. The difference compared with data that is stored on a disk is that real-time data may change its characteristi ...
... held on the 13th of December 2016. The workshop was organised by Dr Frederic Stahl from the University of Reading. This workshop's focus was on the Velocity dimension of Big Data Analytics. The difference compared with data that is stored on a disk is that real-time data may change its characteristi ...
2-foundation
... systems connected by a physical link Interface: specifies how to send a bit Protocols: coding scheme used to represent a bit, voltage levels, duration of a bit ...
... systems connected by a physical link Interface: specifies how to send a bit Protocols: coding scheme used to represent a bit, voltage levels, duration of a bit ...
Midterm 2008
... and ending flags with bit stuffing. Assume that the header of the data link frame includes only parity bits where for every seven consecutive bits in the data to be transmitted an even parity bit is appended at the beginning of the frame. In other words if we would like to send 28 bits of data we mu ...
... and ending flags with bit stuffing. Assume that the header of the data link frame includes only parity bits where for every seven consecutive bits in the data to be transmitted an even parity bit is appended at the beginning of the frame. In other words if we would like to send 28 bits of data we mu ...
HDLC and PPP
... • There are three different classes of frames used in HDLC – Unnumbered frames, used in link setup and disconnection, and hence do not contain ACK. – Information frames, which carry actual information. Such frames can piggyback ACK in case of ABM – Supervisory frames, which are used for error and fl ...
... • There are three different classes of frames used in HDLC – Unnumbered frames, used in link setup and disconnection, and hence do not contain ACK. – Information frames, which carry actual information. Such frames can piggyback ACK in case of ABM – Supervisory frames, which are used for error and fl ...
Wireless Communication
... Commonly uses transmission control protocol (tcp) Provides reliability during data exchange Completeness Order ...
... Commonly uses transmission control protocol (tcp) Provides reliability during data exchange Completeness Order ...
foundationsChap1
... Physical Layer transmits bits Data link layer collects bits into frames ◦ NIC and drivers typically implement this ...
... Physical Layer transmits bits Data link layer collects bits into frames ◦ NIC and drivers typically implement this ...
Computer and multimedia networks (FM)
... Connectionless: message to be sent is single datagram. The only thing UDP provides is multiplexing and error detection through a checksum. Much faster than TCP, however it is unreliable In most real-time multimedia applications (e.g., streaming video or audio), packets that arrive late are s ...
... Connectionless: message to be sent is single datagram. The only thing UDP provides is multiplexing and error detection through a checksum. Much faster than TCP, however it is unreliable In most real-time multimedia applications (e.g., streaming video or audio), packets that arrive late are s ...
Overview of Communications Technologies
... Frames take individual routes Packet assembly devices needed Error Control Traffic Management Buffering Discard ...
... Frames take individual routes Packet assembly devices needed Error Control Traffic Management Buffering Discard ...
chap01 - cknuckles
... Transport Layer -- End-to-End Service • Transmission Control Protocol (TCP) -- Divides data into packets, verifies arrival on the other end, puts packets back together. TCP connections between two computers called sockets. • User Datagram Protocol (UDP) -- No guarantee of delivery, often single pac ...
... Transport Layer -- End-to-End Service • Transmission Control Protocol (TCP) -- Divides data into packets, verifies arrival on the other end, puts packets back together. TCP connections between two computers called sockets. • User Datagram Protocol (UDP) -- No guarantee of delivery, often single pac ...
download
... Commonly uses transmission control protocol (tcp) Provides reliability during data exchange ...
... Commonly uses transmission control protocol (tcp) Provides reliability during data exchange ...
CS244a: An Introduction to Computer Networks
... The link layer delivers data between two machines that are directly connected using a link ...
... The link layer delivers data between two machines that are directly connected using a link ...
A Router
... communicate over a computer network. • Provides a low-level addressing system through the use of MAC addresses. It allows users to connect to each other either by using cables or wirelessly. • The NIC is both an OSI layer 1 (physical layer) and layer 2 (data link layer)device. ...
... communicate over a computer network. • Provides a low-level addressing system through the use of MAC addresses. It allows users to connect to each other either by using cables or wirelessly. • The NIC is both an OSI layer 1 (physical layer) and layer 2 (data link layer)device. ...
William Stallings Data and Computer Communications
... • Each computer needs unique network address • Each application on a (multi-tasking) computer needs a unique address within the computer The service access point or SAP ...
... • Each computer needs unique network address • Each application on a (multi-tasking) computer needs a unique address within the computer The service access point or SAP ...
INTRODUCTION - University of Southern California
... Bounded Region Finite Mobile Robots :random Transmission range ‘r’ ...
... Bounded Region Finite Mobile Robots :random Transmission range ‘r’ ...