02_TCPIP
... Notice that the hardware (link layer) is isolated from the application at the top. This means you can swap out the link layer every few years as faster media becomes available, and not affect your application at the top This is a Big Deal. The vast majority of money and programming time are tied up ...
... Notice that the hardware (link layer) is isolated from the application at the top. This means you can swap out the link layer every few years as faster media becomes available, and not affect your application at the top This is a Big Deal. The vast majority of money and programming time are tied up ...
Routing Table Lookup
... BGP • BGP’s goal is to find any path (not an optimal one). Since the internals of the AS are never revealed, finding an optimal path is not feasible. • For each autonomous system (AS), BGP distinguishes: • local traffic = traffic with source or destination in AS • transit traffic = traffic that pas ...
... BGP • BGP’s goal is to find any path (not an optimal one). Since the internals of the AS are never revealed, finding an optimal path is not feasible. • For each autonomous system (AS), BGP distinguishes: • local traffic = traffic with source or destination in AS • transit traffic = traffic that pas ...
Kismet Menus - SciTech Connect
... changed the factory configuration, you just might find that they haven’t changed the default password either! Networks in green are using some form of encryption, usually either WEP or WPA. If Kismet cannot determine between the two, the Kismet .dump file can be imported into Wireshark, and the exac ...
... changed the factory configuration, you just might find that they haven’t changed the default password either! Networks in green are using some form of encryption, usually either WEP or WPA. If Kismet cannot determine between the two, the Kismet .dump file can be imported into Wireshark, and the exac ...
Multicasting and Multicast Routing Protocols
... Querier’s query interval code: it is used to calculate the querier’s query interval (QQI), as we will show shortly ...
... Querier’s query interval code: it is used to calculate the querier’s query interval (QQI), as we will show shortly ...
PDF
... sequence numbers and hop counts is monotonic along a route. This means that there can't be any loop in the routing table. The proof was done completely automatically and our algorithm was able to generate all the predicates needed. The Ad hoc On Demand Distance Vector (AODV) routing algorithm is a r ...
... sequence numbers and hop counts is monotonic along a route. This means that there can't be any loop in the routing table. The proof was done completely automatically and our algorithm was able to generate all the predicates needed. The Ad hoc On Demand Distance Vector (AODV) routing algorithm is a r ...
SonicWALL Tele3SP - Simply Better IT
... cable (though if connected into a switching hub from the LAN port, this will require a CAT 5 UTP Straight Through cable). The client PC used to configure the Firewall must also be patched into the hub. Note: The following instructions should be used in conjunction with the SonicWall 'Getting Started ...
... cable (though if connected into a switching hub from the LAN port, this will require a CAT 5 UTP Straight Through cable). The client PC used to configure the Firewall must also be patched into the hub. Note: The following instructions should be used in conjunction with the SonicWall 'Getting Started ...
DeviceNet Communication Manual
... Introduced in 1994, DeviceNet is an implementation of the Common Industrial Protocol (CIP) for industrial communication networks. Developed originally by Allen-Bradley, it had its technology transferred to the ODVA that, since then, keeps, publishes and promotes DeviceNet and other networks based on ...
... Introduced in 1994, DeviceNet is an implementation of the Common Industrial Protocol (CIP) for industrial communication networks. Developed originally by Allen-Bradley, it had its technology transferred to the ODVA that, since then, keeps, publishes and promotes DeviceNet and other networks based on ...
7 Programming client-server communication UDP
... way of knowing whether the datagram reaches the end system. As a result, UDP cannot guarantee that the data will actually be delivered at the destination (for example, in cases where the end system is off or the network is down). In contrast, TCP is a connection-oriented service and provides communi ...
... way of knowing whether the datagram reaches the end system. As a result, UDP cannot guarantee that the data will actually be delivered at the destination (for example, in cases where the end system is off or the network is down). In contrast, TCP is a connection-oriented service and provides communi ...
chapter 1 the nETWORK and its elements
... computer network and allows a network-capable device to access that network. The NIC exists on both the Physical and the Data Link layers of the OSI model. At layer 3 (Network) level NICs are identified by their IP (version 4 or 6) addresses. Each NIC can be identified by a unique number, its MAC (M ...
... computer network and allows a network-capable device to access that network. The NIC exists on both the Physical and the Data Link layers of the OSI model. At layer 3 (Network) level NICs are identified by their IP (version 4 or 6) addresses. Each NIC can be identified by a unique number, its MAC (M ...
Unit 5 - WordPress.com
... controlled in such a way as to setup a communication path between any two distant points. A switching center of a telephone network comprising a switching network and its control and support equipment is called a central office. In large networks there might be multiple paths linking sender and rece ...
... controlled in such a way as to setup a communication path between any two distant points. A switching center of a telephone network comprising a switching network and its control and support equipment is called a central office. In large networks there might be multiple paths linking sender and rece ...
Link Layer
... Reliable delivery between adjacent nodes, flow ctrl Control when errors + pace between adjacent sending and receiving nodes • we learned how to do this already (chapter 3)! ...
... Reliable delivery between adjacent nodes, flow ctrl Control when errors + pace between adjacent sending and receiving nodes • we learned how to do this already (chapter 3)! ...
Wireless Data Communication
... • Design network to be able to deal with worst-case traffic scenario • Advantage: – no impact on architecture, protocols and user equipment – simplicity • Problems: – Traffic depends on number of active users, user mobility, type of application, daily utilization profile difficult forecasting – Da ...
... • Design network to be able to deal with worst-case traffic scenario • Advantage: – no impact on architecture, protocols and user equipment – simplicity • Problems: – Traffic depends on number of active users, user mobility, type of application, daily utilization profile difficult forecasting – Da ...
Multiprotocol Label Switching (MPLS)
... network catered to simple applications such as file transfer and remote login • To carry out these requirements, a simple softwarebased router platform, with network interfaces to support the existing T1/E1– or T3/E3–based backbones, was sufficient • As the demand for higher speed and the ability to ...
... network catered to simple applications such as file transfer and remote login • To carry out these requirements, a simple softwarebased router platform, with network interfaces to support the existing T1/E1– or T3/E3–based backbones, was sufficient • As the demand for higher speed and the ability to ...
Active Networking
... – DANP failed to create an acceptable security model early in the program, to permit wide deployment of active technology. • Limited AN credibility among other network research communities ...
... – DANP failed to create an acceptable security model early in the program, to permit wide deployment of active technology. • Limited AN credibility among other network research communities ...
Chapter 7 Wireless - Lone Star College System
... • The device that makes a client station capable of sending and receiving RF signals is the wireless NIC. • Like an Ethernet NIC, the wireless NIC, using the modulation technique it is configured to use, encodes a data stream onto an RF signal. • Wireless NICs are most often associated with mobile d ...
... • The device that makes a client station capable of sending and receiving RF signals is the wireless NIC. • Like an Ethernet NIC, the wireless NIC, using the modulation technique it is configured to use, encodes a data stream onto an RF signal. • Wireless NICs are most often associated with mobile d ...
Linux+ Guide to Linux Certification
... • “Electronic barcodes” • Used to identify items • Can be read if anywhere within range of transmitted radio signal ...
... • “Electronic barcodes” • Used to identify items • Can be read if anywhere within range of transmitted radio signal ...
Virtual Private Netorks: An Overview
... if they are in different physical LANs. CE and PE devices are routers in a L3 VPN. If a customer defines many virtual sites on the same physical site using VLANs, then the PE router should distinguish between them. In fact, it has ...
... if they are in different physical LANs. CE and PE devices are routers in a L3 VPN. If a customer defines many virtual sites on the same physical site using VLANs, then the PE router should distinguish between them. In fact, it has ...
NFV PM thought experiments
... Studies show that users • are universally satisfied if web pages stabilize in less than 2 seconds • are universally frustrated if web pages don’t stabilize within 8 seconds This is already hard to track for web pages with embedded components where an embedded image may load with significant delay an ...
... Studies show that users • are universally satisfied if web pages stabilize in less than 2 seconds • are universally frustrated if web pages don’t stabilize within 8 seconds This is already hard to track for web pages with embedded components where an embedded image may load with significant delay an ...
Lecture 8: Operating Systems Structures
... • Transportation in over 200 years: – 2 orders of magnitude from horseback @10mph to Concorde @1000mph – Computers do this every decade (at least until 2002)! ...
... • Transportation in over 200 years: – 2 orders of magnitude from horseback @10mph to Concorde @1000mph – Computers do this every decade (at least until 2002)! ...
Layering - Harding University
... Messages that can be sent and received Actions that are to be taken when a certain event occurs, e.g. sending or receiving messages, expiry of timers The purpose of a protocol is to provide a service to the layer above ...
... Messages that can be sent and received Actions that are to be taken when a certain event occurs, e.g. sending or receiving messages, expiry of timers The purpose of a protocol is to provide a service to the layer above ...
Guide to TCP/IP, Third Edition
... – Network addresses must be contiguous – When address aggregation occurs • CIDR address blocks work best when they come in sets that are greater than 1 and equal to some lowerorder bit pattern that corresponds to all 1s ...
... – Network addresses must be contiguous – When address aggregation occurs • CIDR address blocks work best when they come in sets that are greater than 1 and equal to some lowerorder bit pattern that corresponds to all 1s ...
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.