Chapter 1. Introduction to Data Communications
... • More complex than switches or routers • Connect two or more networks that use the same or different data link and network protocols • Some work at the application layer ...
... • More complex than switches or routers • Connect two or more networks that use the same or different data link and network protocols • Some work at the application layer ...
Lecture Note 6 - Computing Science
... multiple access protocol algorithm that determines how nodes share channel, i.e., determine when node can transmit communication about channel sharing must use channel itself! what to look for in multiple access protocols: 5: DataLink Layer 5a-22 ...
... multiple access protocol algorithm that determines how nodes share channel, i.e., determine when node can transmit communication about channel sharing must use channel itself! what to look for in multiple access protocols: 5: DataLink Layer 5a-22 ...
No Slide Title
... • Reliability at link layer causes delay • Strict checksumming of UDP causes poor “error resilience” at application • UDP Lite (with GSM in transparent mode) provides – less end to end delay – constant jitter – higher throughput – lower packet loss … than UDP (with GSM in non-transparent mode) • In ...
... • Reliability at link layer causes delay • Strict checksumming of UDP causes poor “error resilience” at application • UDP Lite (with GSM in transparent mode) provides – less end to end delay – constant jitter – higher throughput – lower packet loss … than UDP (with GSM in non-transparent mode) • In ...
Introduction
... Suggest modifications of ZRP to implement efficient resource discovery Suggest ways in which (partial or approximate) geographic information can improve contact-based ...
... Suggest modifications of ZRP to implement efficient resource discovery Suggest ways in which (partial or approximate) geographic information can improve contact-based ...
Switch - NDSU Computer Science
... Typically 1 RTT (setup) before 1st data packet is sent. Data packets have only a small identifier (setup mess has full destination address) (per-packet header overhead is small) If switch/link fails, connection is broken and a new one needs to be set up. Host reserves resources at setup, gets much i ...
... Typically 1 RTT (setup) before 1st data packet is sent. Data packets have only a small identifier (setup mess has full destination address) (per-packet header overhead is small) If switch/link fails, connection is broken and a new one needs to be set up. Host reserves resources at setup, gets much i ...
Chapter 6
... multiple access protocol distributed algorithm that determines how nodes share channel, i.e., determine when node can transmit communication about channel sharing must use channel itself! • no out-of-band channel for coordination ...
... multiple access protocol distributed algorithm that determines how nodes share channel, i.e., determine when node can transmit communication about channel sharing must use channel itself! • no out-of-band channel for coordination ...
Networks and Network Security - Nicolas T. COURTOIS` research in
... In the UK, the Information Commissioner's Office have acknowledged that this practice contravenes the EC Directives on Data Protection and Privacy and Electronic Communications (PECR)… but refused to act ...
... In the UK, the Information Commissioner's Office have acknowledged that this practice contravenes the EC Directives on Data Protection and Privacy and Electronic Communications (PECR)… but refused to act ...
Guide to Operating System Security
... Explain the use of IP addressing on a network and how it is used for security Explain border and firewall security Configure the firewall capabilities in operating systems ...
... Explain the use of IP addressing on a network and how it is used for security Explain border and firewall security Configure the firewall capabilities in operating systems ...
David
... ANs will preempt the layered model and replace it with a component model. This type of transition is nothing new and has been ubiquitously performed in operating systems. The OSI model sounded great, but had plenty of problems when applied to real-world networking. ...
... ANs will preempt the layered model and replace it with a component model. This type of transition is nothing new and has been ubiquitously performed in operating systems. The OSI model sounded great, but had plenty of problems when applied to real-world networking. ...
KM3218251830
... Each node in manet behave like host as well as router. Each nodes forward packet to other nodes. Research in this area is mostly simulation based Random waypoint is commonly used mobility model in this simulations. Random waypoint is simple model that may be applicable to some scenarios. In these ne ...
... Each node in manet behave like host as well as router. Each nodes forward packet to other nodes. Research in this area is mostly simulation based Random waypoint is commonly used mobility model in this simulations. Random waypoint is simple model that may be applicable to some scenarios. In these ne ...
TCP, IGP, EGP etc. - La Salle University
... At the beginning of the session (the threeway handshake), TCP already has some data on the round trip time. TCP maintains statistics (average and deviation) on each session and adjusts the retransmission times to a little over the average (how much over depends on the ...
... At the beginning of the session (the threeway handshake), TCP already has some data on the round trip time. TCP maintains statistics (average and deviation) on each session and adjusts the retransmission times to a little over the average (how much over depends on the ...
Lecture3-wireless
... • Combination of Two Standards Groups – ZigBee Alliance: “an association of companies working together to enable reliable, costeffective, low-power, wirelessly networked, monitoring and control products based on an open global standard.” – IEEE 802 Working Group 15 ...
... • Combination of Two Standards Groups – ZigBee Alliance: “an association of companies working together to enable reliable, costeffective, low-power, wirelessly networked, monitoring and control products based on an open global standard.” – IEEE 802 Working Group 15 ...
Burst Testing - Viavi Solutions
... over the wireless protocol. This occurs because, as a reliable protocol, TCP will retransmit datagrams that do not successfully traverse the network to ensure that all of the data requested will eventually arrive. In mobile networks, this causes additional stress on wireless spectrum, which can be t ...
... over the wireless protocol. This occurs because, as a reliable protocol, TCP will retransmit datagrams that do not successfully traverse the network to ensure that all of the data requested will eventually arrive. In mobile networks, this causes additional stress on wireless spectrum, which can be t ...
Reliable Multicast Protocols for MANET
... Advantage versus Disadvantage • Advantage – AG is a reliable multicast protocol that does not require membership information. – To reduce the network traffic, gossip requests are sent to nearer members with higher probability than to farther members. – AG operates independent of topology changes ...
... Advantage versus Disadvantage • Advantage – AG is a reliable multicast protocol that does not require membership information. – To reduce the network traffic, gossip requests are sent to nearer members with higher probability than to farther members. – AG operates independent of topology changes ...
Reliable Multicast Protocols for MANET
... Advantage versus Disadvantage • Advantage – AG is a reliable multicast protocol that does not require membership information. – To reduce the network traffic, gossip requests are sent to nearer members with higher probability than to farther members. – AG operates independent of topology changes ...
... Advantage versus Disadvantage • Advantage – AG is a reliable multicast protocol that does not require membership information. – To reduce the network traffic, gossip requests are sent to nearer members with higher probability than to farther members. – AG operates independent of topology changes ...
ppt - inst.eecs.berkeley.edu
... Data is sent as chunks of formatted bits (Packets) Packets consist of a “header” and “payload” Switches “forward” packets based on their headers ...
... Data is sent as chunks of formatted bits (Packets) Packets consist of a “header” and “payload” Switches “forward” packets based on their headers ...
Reliable Multicast Protocols for MANET
... Advantage versus Disadvantage • Advantage – AG is a reliable multicast protocol that does not require membership information. – To reduce the network traffic, gossip requests are sent to nearer members with higher probability than to farther members. – AG operates independent of topology changes ...
... Advantage versus Disadvantage • Advantage – AG is a reliable multicast protocol that does not require membership information. – To reduce the network traffic, gossip requests are sent to nearer members with higher probability than to farther members. – AG operates independent of topology changes ...
ATM: Architecture
... the cell-switching and routing services. Application services rely on the ATM Adaptation Layer (AAL) that serves two purposes, to provide a common framework for the segmentation and reassembly of larger data sets into the ATM cells and to provide service specific mechanisms for the transport of diff ...
... the cell-switching and routing services. Application services rely on the ATM Adaptation Layer (AAL) that serves two purposes, to provide a common framework for the segmentation and reassembly of larger data sets into the ATM cells and to provide service specific mechanisms for the transport of diff ...
Ch 01 - Introducig VoIP Networks
... The modular architecture of the Cisco 2600XM Series multiservice routers, enables you to upgrade interfaces to accommodate network expansion or changes in technology as new services and applications are deployed. Modular interfaces are shared with the Cisco 1700 Series Modular Access Routers and th ...
... The modular architecture of the Cisco 2600XM Series multiservice routers, enables you to upgrade interfaces to accommodate network expansion or changes in technology as new services and applications are deployed. Modular interfaces are shared with the Cisco 1700 Series Modular Access Routers and th ...
22.3 Figure 22.1 Direct and indirect delivery 22.4 22
... routing table for a host or router is netstat in UNIX or LINUX. The next slide shows the list of the contents of a default server. We have used two options, r and n. The option r indicates that we are interested in the routing table, and the option n indicates that we are looking for numeric address ...
... routing table for a host or router is netstat in UNIX or LINUX. The next slide shows the list of the contents of a default server. We have used two options, r and n. The option r indicates that we are interested in the routing table, and the option n indicates that we are looking for numeric address ...
Word Pro - MB_Router Bro-2
... Single-box Modbus Router solution for allowing a number of user devices to communicate over an IP-based network in wide-area Access, Control and Monitoring applications that have RS232/RS485 and Ethernet based hosts and clients. A built-in IP routing function allows the CYGNUS 1110 units to either c ...
... Single-box Modbus Router solution for allowing a number of user devices to communicate over an IP-based network in wide-area Access, Control and Monitoring applications that have RS232/RS485 and Ethernet based hosts and clients. A built-in IP routing function allows the CYGNUS 1110 units to either c ...
ppt
... • Stall in transfer of one object prevents delivery of others • Serialized transmission • Much of the useful information in first few bytes • Can “packetize” transfer over TCP • HTTP 1.1 recommends using range requests • MUX protocol provides similar generic solution ...
... • Stall in transfer of one object prevents delivery of others • Serialized transmission • Much of the useful information in first few bytes • Can “packetize” transfer over TCP • HTTP 1.1 recommends using range requests • MUX protocol provides similar generic solution ...
Internetworking
... • if router is connected to destination network, then forward to host • if not directly connected, then forward to some router • forwarding table maps network number into next hop (router) • each host has a default router • each router maintains a forwarding table ...
... • if router is connected to destination network, then forward to host • if not directly connected, then forward to some router • forwarding table maps network number into next hop (router) • each host has a default router • each router maintains a forwarding table ...
Internet protocol suite
The Internet protocol suite is the computer networking model and set of communications protocols used on the Internet and similar computer networks. It is commonly known as TCP/IP, because among many protocols, the Transmission Control Protocol (TCP) and the Internet Protocol (IP) is the accepted and most widely used protocol in Internet. Often also called the Internet model, it was originally also known as the DoD model, because the development of the networking model was funded by DARPA, an agency of the United States Department of Defense.TCP/IP provides end-to-end connectivity specifying how data should be packetized, addressed, transmitted, routed and received at the destination. This functionality is organized into four abstraction layers which are used to sort all related protocols according to the scope of networking involved. From lowest to highest, the layers are the link layer, containing communication technologies for a single network segment (link); the internet layer, connecting hosts across independent networks, thus establishing internetworking; the transport layer handling host-to-host communication; and the application layer, which provides process-to-process application data exchange.The TCP/IP model and related protocol models are maintained by the Internet Engineering Task Force (IETF).