The Internet and TCP/IP Phones OFF Please Brian Bramer Home: www.cse.dmu.ac.uk/~bb
... mail reader software and an electronic mail server; the current version is POP3. • DNS: The Domain Name System defines the structure of Internet names and their association with IP addresses, as well as the association of mail, name, and other servers with domains. • SNMP: The Simple Network Managem ...
... mail reader software and an electronic mail server; the current version is POP3. • DNS: The Domain Name System defines the structure of Internet names and their association with IP addresses, as well as the association of mail, name, and other servers with domains. • SNMP: The Simple Network Managem ...
Book cover slide - Glencoe/McGraw-Hill
... wireless local area network (WLAN) A local area network that uses either infrared (IR) light or radio frequencies (RF) to connect the clients and/or peripherals. (p. 46) ...
... wireless local area network (WLAN) A local area network that uses either infrared (IR) light or radio frequencies (RF) to connect the clients and/or peripherals. (p. 46) ...
2 - Distributed Systems
... until receiver can accept it Receiving application need not be executing when the message is ...
... until receiver can accept it Receiving application need not be executing when the message is ...
Spatial Query Integr..
... spatial index, thus allowing efficient query processing at the service provider. Additionally, since the verification information depends only on the object and its Voronoi neighbors, database updates can be disseminated quickly to their local regions and be performed independently of all other upda ...
... spatial index, thus allowing efficient query processing at the service provider. Additionally, since the verification information depends only on the object and its Voronoi neighbors, database updates can be disseminated quickly to their local regions and be performed independently of all other upda ...
A C T I V E N A... TR A N S P O R T ... W I D E - A R E A ...
... servers according to some selection criteria. In our system, such a new policy for server selection can be implemented by mapping the service name to a program that selects the replica. Equivalently, the same policy could be implemented at the packet level inside programmable routers by mapping the ...
... servers according to some selection criteria. In our system, such a new policy for server selection can be implemented by mapping the service name to a program that selects the replica. Equivalently, the same policy could be implemented at the packet level inside programmable routers by mapping the ...
Multifaceted Approach to Understanding the Botnet Phenomenon
... The footprint of the botnets is usually much larger from the number of the connected bots on the IRC server(effective size) , this is not something unexpected because the networking infrastructure of the IRC server(s) is poor for serving thousands of connected bots, this means that a bot connects to ...
... The footprint of the botnets is usually much larger from the number of the connected bots on the IRC server(effective size) , this is not something unexpected because the networking infrastructure of the IRC server(s) is poor for serving thousands of connected bots, this means that a bot connects to ...
Katana® 2000 - Ecrin Systems
... shelf management. In addition, the ShM cards host the Base Hub Board functionality that allow redundant access to the centralized 1Gbps Ethernet network. The active ShM can access all intelligent FRUs within the shelf via two redundant IPMI busses (IPMB). For redundant configurations, the standby Sh ...
... shelf management. In addition, the ShM cards host the Base Hub Board functionality that allow redundant access to the centralized 1Gbps Ethernet network. The active ShM can access all intelligent FRUs within the shelf via two redundant IPMI busses (IPMB). For redundant configurations, the standby Sh ...
Access Control
... • Challenge Response: – Send username to authentication server – Server sends back a challenge: randomly created data used only once – Challenge is encrypted with a secret known to user or derived from token and sent to server – Server performs the same encryption with the secret and compares the re ...
... • Challenge Response: – Send username to authentication server – Server sends back a challenge: randomly created data used only once – Challenge is encrypted with a secret known to user or derived from token and sent to server – Server performs the same encryption with the secret and compares the re ...
Active Names: Flexible Location and Transport of Wide-Area Resources.
... servers according to some selection criteria. In our system, such a new policy for server selection can be implemented by mapping the service name to a program that selects the replica. Equivalently, the same policy could be implemented at the packet level inside programmable routers by mapping the ...
... servers according to some selection criteria. In our system, such a new policy for server selection can be implemented by mapping the service name to a program that selects the replica. Equivalently, the same policy could be implemented at the packet level inside programmable routers by mapping the ...
CS 5865
... G. Flores-Lucio, M. Paredes-Farrera, E. Jammeh, M. Fleury, and M. Reed, OPNET-Modeler and NS-2: "Comparing the Accuracy of Network Simulators for PacketLevel Analysis using a Network Testbed". 3rd WEAS Int. Conf. on Simulation, Modelling and Optimization (ICOSMO 2003), Crete, vol. 2, pp. 700-707, 20 ...
... G. Flores-Lucio, M. Paredes-Farrera, E. Jammeh, M. Fleury, and M. Reed, OPNET-Modeler and NS-2: "Comparing the Accuracy of Network Simulators for PacketLevel Analysis using a Network Testbed". 3rd WEAS Int. Conf. on Simulation, Modelling and Optimization (ICOSMO 2003), Crete, vol. 2, pp. 700-707, 20 ...
mypages.iit.edu
... • For organizations that enable users to access network resources through the Web – Rather than through user accounts ...
... • For organizations that enable users to access network resources through the Web – Rather than through user accounts ...
Slide 1
... time decoupling between sender and receiver They provide intermediate-term storage capacity for messages (in the form of Queues), without requiring sender or receiver to be active during communication 1. Send message to the receiver Sender ...
... time decoupling between sender and receiver They provide intermediate-term storage capacity for messages (in the form of Queues), without requiring sender or receiver to be active during communication 1. Send message to the receiver Sender ...
Local Area Networks
... ------Over half of corporate computer misfeasance is caused by employees who are already behind the main firewall. ...
... ------Over half of corporate computer misfeasance is caused by employees who are already behind the main firewall. ...
Cookie[] - CUHK CSE
... Server-side programs look up state info stored in the local memory based on received ID. ...
... Server-side programs look up state info stored in the local memory based on received ID. ...
Introduction - California State University, Long Beach
... allow packets to be routed across multiple routers from a source host to a destination host, even if the routers come from different vendors ...
... allow packets to be routed across multiple routers from a source host to a destination host, even if the routers come from different vendors ...
Slide 1
... IAX is also NAT-proof, so dozens or hundreds of simultaneous calls from behind a masquerading firewall will function correctly, just like HTTP. IAX is much more compact because it has been developed only for telephony applications While a complete cycle of registration, call signaling, voice transmi ...
... IAX is also NAT-proof, so dozens or hundreds of simultaneous calls from behind a masquerading firewall will function correctly, just like HTTP. IAX is much more compact because it has been developed only for telephony applications While a complete cycle of registration, call signaling, voice transmi ...
Aalborg Universitet Peer-Assisted Content Distribution with Random Linear Network Coding
... packets, where each packet has size b. The field size used for network coding parameters is denoted q. Selection of the parameter values g, b, and q poses a trade-off between the computational complexity of the coding and the possibility of generating linear dependent packets. If the size of the ori ...
... packets, where each packet has size b. The field size used for network coding parameters is denoted q. Selection of the parameter values g, b, and q poses a trade-off between the computational complexity of the coding and the possibility of generating linear dependent packets. If the size of the ori ...
Downloading
... Half a minute for popular streaming channels and around 2 minutes for less popular ...
... Half a minute for popular streaming channels and around 2 minutes for less popular ...
Backbone Networks, MAN, WAN
... voice and data traffic over WANs. It is also used in backbone networks. In the WAN, ATM almost always uses SONET as its hardware layer. An ATM gateway is needed to convert TCP/IP and Ethernet frames into ATM cells and then converts them back once they have reached their destination network. The tran ...
... voice and data traffic over WANs. It is also used in backbone networks. In the WAN, ATM almost always uses SONET as its hardware layer. An ATM gateway is needed to convert TCP/IP and Ethernet frames into ATM cells and then converts them back once they have reached their destination network. The tran ...
Computer Science 461 Midterm Exam March 15, 2006 1:30-2:50pm
... D have this size; suppose also that B and C send an ACK in response to each data packet. Suppose that all packets have TCP and IP headers, as well as a 20-byte link-layer header/trailer. Assume the combined data and ACK packets fully utilize the middle link in both directions and no congestion contr ...
... D have this size; suppose also that B and C send an ACK in response to each data packet. Suppose that all packets have TCP and IP headers, as well as a 20-byte link-layer header/trailer. Assume the combined data and ACK packets fully utilize the middle link in both directions and no congestion contr ...
With the help of this diagram, try to describe the function of these
... the message to avoid congestion on the network. At the receiving node, the layered process that sent the message on its way is reversed. The physical layer reconverts the message into bits. The data-link layer recalculates the checksum, confirms arrival, and logs in the packets. The network layer re ...
... the message to avoid congestion on the network. At the receiving node, the layered process that sent the message on its way is reversed. The physical layer reconverts the message into bits. The data-link layer recalculates the checksum, confirms arrival, and logs in the packets. The network layer re ...
Chapter 2 Lecture Presentation
... HTTP specifies actions to be taken upon receipt of certain messages ...
... HTTP specifies actions to be taken upon receipt of certain messages ...
Chapter 2 Applications and Layered Architectures
... z Definition of all the layers z Design of protocols for every layer By the 1970s every computer vendor had developed its own proprietary layered network architecture ...
... z Definition of all the layers z Design of protocols for every layer By the 1970s every computer vendor had developed its own proprietary layered network architecture ...
Applications and Layered Architectures
... HTTP specifies actions to be taken upon receipt of certain messages ...
... HTTP specifies actions to be taken upon receipt of certain messages ...
Application Layer Functionality and Protocols
... The Server Message Block (SMB) is a client/server file sharing protocol. Unlike the file sharing supported by FTP, clients establish a long term connection to servers. Once the connection is established, the user of the client can access the resources on the server as if the resource is local ...
... The Server Message Block (SMB) is a client/server file sharing protocol. Unlike the file sharing supported by FTP, clients establish a long term connection to servers. Once the connection is established, the user of the client can access the resources on the server as if the resource is local ...
Lag
In online gaming, lag is a noticeable delay between the action of players and the reaction of the server. Although lag may be caused by high latency, it may also occur due to insufficient processing power in the client(Screen-lag). Screen-Lag can also happened in single player games as well.The tolerance for lag depends heavily on the type of game. For instance, a strategy game or a turn-based game with a low pace may have a high threshold or even be mostly unaffected by high delays, whereas a twitch gameplay game such as a first-person shooter with a considerably higher pace may require significantly lower delay to be able to provide satisfying gameplay. But, the specific characteristics of the game matter. For example, fast chess is a turn-based game that is fast action and may not tolerate high lag. And, some twitch games can be designed such that only events that don't impact the outcome of the game introduce lag, allowing for fast local response most of the time.