ppt
... networks – also called an “internet” Subnetwork – a constituent of an internet Intermediate system – a device used to connect two networks allowing hosts of the networks to correspond with each other ...
... networks – also called an “internet” Subnetwork – a constituent of an internet Intermediate system – a device used to connect two networks allowing hosts of the networks to correspond with each other ...
computer network
... Wireless networks: In wireless network there are no wires between hosts and servers. The data is transferred over sets of radio transceivers. The most common wireless networks cover ranges from hundreds of meters to a few kilometers ...
... Wireless networks: In wireless network there are no wires between hosts and servers. The data is transferred over sets of radio transceivers. The most common wireless networks cover ranges from hundreds of meters to a few kilometers ...
Chapter 7: Computer Networks, the Internet, and the World Wide Web
... Created by system software Easy to use and easy to understand Provides services such as ...
... Created by system software Easy to use and easy to understand Provides services such as ...
He07-slide - People
... Voluntary: connection cost, power consumption. Involuntary: handoff, wireless link failure. ...
... Voluntary: connection cost, power consumption. Involuntary: handoff, wireless link failure. ...
Topic 12 – Wide Area Networks
... • Thus, each of the two devices that are connected must transmit and receive at the same data rate as the other – This limits the utility of the network in interconnecting a variety of host computers and workstations ...
... • Thus, each of the two devices that are connected must transmit and receive at the same data rate as the other – This limits the utility of the network in interconnecting a variety of host computers and workstations ...
Active components B.41 Decentralised I/O remotes EtherNet/IP
... uses?We at Weidmüller have worked on this problem in depth. We have developed a new technology that provides smart and reliable defence against external dangers.We have created a new data communication path which establishes a new level of security, reliability and user-friendliness. The two typical ...
... uses?We at Weidmüller have worked on this problem in depth. We have developed a new technology that provides smart and reliable defence against external dangers.We have created a new data communication path which establishes a new level of security, reliability and user-friendliness. The two typical ...
Chapter 7: Computer Networks, the Internet, and the World
... Created by system software Easy to use and easy to understand Provides services such as ...
... Created by system software Easy to use and easy to understand Provides services such as ...
Part I: Introduction
... The Internet Network layer Host, router network layer functions: Transport layer: TCP, UDP ...
... The Internet Network layer Host, router network layer functions: Transport layer: TCP, UDP ...
18739A-JFK-Anonimity
... Every diner will see two coins: his own and his right neighbor’s Each diner announces whether the two coins are the same. If he is the payer, he lies (says the opposite). Odd number of “same” NSA is paying; even number of “same” one of them is paying ...
... Every diner will see two coins: his own and his right neighbor’s Each diner announces whether the two coins are the same. If he is the payer, he lies (says the opposite). Odd number of “same” NSA is paying; even number of “same” one of them is paying ...
network
... Dynamic routing - The path used to send a message form site A to site B is chosen only when a message is sent Usually a site sends a message to another site on the link least used at that particular time Adapts to load changes by avoiding routing messages on heavily used path Messages may arri ...
... Dynamic routing - The path used to send a message form site A to site B is chosen only when a message is sent Usually a site sends a message to another site on the link least used at that particular time Adapts to load changes by avoiding routing messages on heavily used path Messages may arri ...
Document
... computing enables computers in a distributed computing environment to share processing power in addition to data, resources and services. In collaborative computing environment, computers might “borrow” processing power by running programs on other computers on the network, or processes might be des ...
... computing enables computers in a distributed computing environment to share processing power in addition to data, resources and services. In collaborative computing environment, computers might “borrow” processing power by running programs on other computers on the network, or processes might be des ...
ch05
... T1 line (1.5 Mbits/sec) Carries twenty-four 64-Kbps signals on one line T3 line (45 Mbits/sec) Carries 672 signals on one line Devices commonly used to control and protect industrial-level telecommunications: Multiplexer Communications processor Encryption devices ...
... T1 line (1.5 Mbits/sec) Carries twenty-four 64-Kbps signals on one line T3 line (45 Mbits/sec) Carries 672 signals on one line Devices commonly used to control and protect industrial-level telecommunications: Multiplexer Communications processor Encryption devices ...
Cookie file
... Elastic apps that need reliability: remote login or email Inelastic, loss-tolerant apps: real-time voice or video Others in between, or with stronger requirements Biggest cause of delay variation: reliable delivery – Today’s net: ~100ms RTT – Reliable delivery can add seconds. ...
... Elastic apps that need reliability: remote login or email Inelastic, loss-tolerant apps: real-time voice or video Others in between, or with stronger requirements Biggest cause of delay variation: reliable delivery – Today’s net: ~100ms RTT – Reliable delivery can add seconds. ...
Overview - LIA - Laboratory of Advanced Research on Computer
... definition of the seven layer ISO-OSI model represented the apex of this process. Under the implementation point of view, the ISO-OSI model represents a significative example of the highly predominant role gained by software in the development of the communication features, and of how software absor ...
... definition of the seven layer ISO-OSI model represented the apex of this process. Under the implementation point of view, the ISO-OSI model represents a significative example of the highly predominant role gained by software in the development of the communication features, and of how software absor ...
Secure Ad Hoc Networking
... network operation without necessarily pursuing a common objective or running the same application. The network membership and connectivity change frequently, as nodes may join and leave the network without prior notice, e.g., due to mobility or because devices alternate between ‘sleep’ and ‘active’ ...
... network operation without necessarily pursuing a common objective or running the same application. The network membership and connectivity change frequently, as nodes may join and leave the network without prior notice, e.g., due to mobility or because devices alternate between ‘sleep’ and ‘active’ ...
Link-state routing protocols
... Neighbors then flood the LSPs to their neighbors until all routers in the area have received the LSPs. 5. Each router uses the database to construct a complete map of the topology and computes the best path to each destination network. The SPF algorithm is used to construct the map of the topolo ...
... Neighbors then flood the LSPs to their neighbors until all routers in the area have received the LSPs. 5. Each router uses the database to construct a complete map of the topology and computes the best path to each destination network. The SPF algorithm is used to construct the map of the topolo ...
APPLICATION NOTE
... network screen gives you information on all of the network services that the Envisalink supports. ...
... network screen gives you information on all of the network services that the Envisalink supports. ...
Forcepoint™ Stonesoft® Next Generation Firewall
... Forcepoint Stonesoft Next Generation Firewall (NGFW) starts with a solid foundation of protection, including granular application control, an intrusion prevention system (IPS), built-in virtual private network (VPN), and deep packet inspection, all in an efficient, extensible, and highly scalable un ...
... Forcepoint Stonesoft Next Generation Firewall (NGFW) starts with a solid foundation of protection, including granular application control, an intrusion prevention system (IPS), built-in virtual private network (VPN), and deep packet inspection, all in an efficient, extensible, and highly scalable un ...
2001 Midterm Solutions
... level. A and E understand IPv4 and Ipv6. But B, C, and D are legacy IPv4 routers. A wants to route a pack to E. On potential difficulty with the tunneling solution to the problem is that the host has to figure out that an IPv6 packet is encapsulated within the IPv4 packet. Give a reasonable solution ...
... level. A and E understand IPv4 and Ipv6. But B, C, and D are legacy IPv4 routers. A wants to route a pack to E. On potential difficulty with the tunneling solution to the problem is that the host has to figure out that an IPv6 packet is encapsulated within the IPv4 packet. Give a reasonable solution ...
Linux+ Guide to Linux Certification
... • T-carrier technology uses TDM to divide a single channel into multiple channels for carrying voice, data, video, or other signals • DSL comes in eight different varieties, each of which is either asymmetrical or symmetrical • Broadband cable is a dedicated service that relies on the cable wiring u ...
... • T-carrier technology uses TDM to divide a single channel into multiple channels for carrying voice, data, video, or other signals • DSL comes in eight different varieties, each of which is either asymmetrical or symmetrical • Broadband cable is a dedicated service that relies on the cable wiring u ...
Lecture note 7
... networks. – Although the absolute control delay (a connection’s RTT) may remain about the same regardless of the link bandwidth (either 10, 100, or 1000 Mbps), the cost of the control delay becomes higher on higher-bandwidth network. – Why? During the same RTT, a larger amount of data has been injec ...
... networks. – Although the absolute control delay (a connection’s RTT) may remain about the same regardless of the link bandwidth (either 10, 100, or 1000 Mbps), the cost of the control delay becomes higher on higher-bandwidth network. – Why? During the same RTT, a larger amount of data has been injec ...
Slide 1
... CSMA/CD and Collisions CSMA/CD (Carrier Sense Multiple Access with Collision Detection) Listens to the network’s shared media to see if any other users on “on the line” by trying to sense a neutral electrical signal or carrier. If no transmission is sensed, then multiple access allows anyone on ...
... CSMA/CD and Collisions CSMA/CD (Carrier Sense Multiple Access with Collision Detection) Listens to the network’s shared media to see if any other users on “on the line” by trying to sense a neutral electrical signal or carrier. If no transmission is sensed, then multiple access allows anyone on ...
KIS – Cvičenie #1
... • Each Ethernet MAC determines for itself when it will be allowed to send a frame • Carrier sense : Each station continuously listens for traffic on the medium to determine when gaps between frame transmissions ...
... • Each Ethernet MAC determines for itself when it will be allowed to send a frame • Carrier sense : Each station continuously listens for traffic on the medium to determine when gaps between frame transmissions ...
Wake-on-LAN
Wake-on-LAN (WoL) is an Ethernet or Token ring computer networking standard that allows a computer to be turned on or awakened by a network message.The message is usually sent by a program executed on another computer on the same local area network. It is also possible to initiate the message from another network by using subnet directed broadcasts or a WOL gateway service. Equivalent terms include wake on WAN, remote wake-up, power on by LAN, power up by LAN, resume by LAN, resume on LAN and wake up on LAN. In case the computer being awakened is communicating via Wi-Fi, a supplementary standard called Wake on Wireless LAN (WoWLAN) must be employed.The WOL and WoWLAN standards are often supplemented by vendors to provide protocol-transparent on-demand services, for example in the Apple Bonjour wake-on-demand (Sleep Proxy) feature.