Ch 9 Ques
... B) refers to Subscriber Mainframe Digital Subscriber C) performs error checking, unlike frame relay and ATM D) does not encapsulate packets E) is a reliable packet service ...
... B) refers to Subscriber Mainframe Digital Subscriber C) performs error checking, unlike frame relay and ATM D) does not encapsulate packets E) is a reliable packet service ...
and packet switching - Computer Science Division
... • Each packet is independently switched – Each packet header contains destination address ...
... • Each packet is independently switched – Each packet header contains destination address ...
introduction
... client host requests, receives service from server e.g., WWW client (browser)/ server; email client/server ...
... client host requests, receives service from server e.g., WWW client (browser)/ server; email client/server ...
Lecture 6: Vector
... – Flow control: between pairs of receivers and senders; use feedback to tell sender when allowed to send next packet » Back-pressure: separate wires to tell to stop » Window: give original sender right to send N packets before getting permission to send more; overlaps latency of interconnection with ...
... – Flow control: between pairs of receivers and senders; use feedback to tell sender when allowed to send next packet » Back-pressure: separate wires to tell to stop » Window: give original sender right to send N packets before getting permission to send more; overlaps latency of interconnection with ...
Chapter 10 Circuit and Packet Switching
... Packet Switching Principles • Circuit switching designed for voice —Resources dedicated to a particular call —Much of the time a data connection is idle —Data rate is fixed • Both ends must operate at the same rate ...
... Packet Switching Principles • Circuit switching designed for voice —Resources dedicated to a particular call —Much of the time a data connection is idle —Data rate is fixed • Both ends must operate at the same rate ...
Computer Networks
... – Switched Virtual Circuits (SVCs): Set up by the user application through a signaling process only for the duration of the session. Also known as a virtual call. ...
... – Switched Virtual Circuits (SVCs): Set up by the user application through a signaling process only for the duration of the session. Also known as a virtual call. ...
ECE537-Class 1_2009 - Worcester Polytechnic Institute
... Two key router functions: • run routing algorithms/protocol (RIP, OSPF, BGP) • forwarding datagrams from incoming to outgoing link ...
... Two key router functions: • run routing algorithms/protocol (RIP, OSPF, BGP) • forwarding datagrams from incoming to outgoing link ...
Survey of Active network
... Active network may admit the design of an integrated mechanism this eliminate multiple authentication independently of each layer. Active network management ...
... Active network may admit the design of an integrated mechanism this eliminate multiple authentication independently of each layer. Active network management ...
document
... transmissions used for the wireless network interface between computing devices and access point (Aps) can be intercepted by any receiver within range. To prevent this, the networks must use some form of cryptographic security control. ...
... transmissions used for the wireless network interface between computing devices and access point (Aps) can be intercepted by any receiver within range. To prevent this, the networks must use some form of cryptographic security control. ...
Hybrid Networks - MIT Haystack Observatory
... In general, connection oriented services provide a means for the user to specify service requirements for a flow, and allows the network to allocate sufficient resources to this flow apriori (before the initiating the flow) and then to release those resources when the user no longer requires them. – ...
... In general, connection oriented services provide a means for the user to specify service requirements for a flow, and allows the network to allocate sufficient resources to this flow apriori (before the initiating the flow) and then to release those resources when the user no longer requires them. – ...
PowerPoint XP
... Built on top of machine-to-machine communications through the use of port addresses Each message contains the destination port to talk to the correct process ...
... Built on top of machine-to-machine communications through the use of port addresses Each message contains the destination port to talk to the correct process ...
PPTX
... at the end points of the communication system. Therefore, providing that questioned function as a feature of the communication system itself is not possible. (Sometimes an incomplete version of the function provided by the communication system may be useful as a performance enhancement.)" ...
... at the end points of the communication system. Therefore, providing that questioned function as a feature of the communication system itself is not possible. (Sometimes an incomplete version of the function provided by the communication system may be useful as a performance enhancement.)" ...
Chapter 3 Part 1 Switching and Bridging Networking CS 3470, Section 1
... at 100Mbps linked through 10Mbps to another switch with 100 clients at 100Mbps Obviously not the best solution because there's contention at the interconnect Bandwidth is not reserved from one end to ...
... at 100Mbps linked through 10Mbps to another switch with 100 clients at 100Mbps Obviously not the best solution because there's contention at the interconnect Bandwidth is not reserved from one end to ...
Lesson 11
... Network links have MTU (max. transmission unit) largest possible data linklevel frame Different link types, ...
... Network links have MTU (max. transmission unit) largest possible data linklevel frame Different link types, ...
Lecture 14 - Personal Web Pages - University of North Carolina at
... – run application programs – e.g. Web, email – at “edge of network” ...
... – run application programs – e.g. Web, email – at “edge of network” ...
Slides for Week 5
... • Because of high error rates on copper links it provided for error recovery on a link-bylink basis • Still in use in Europe ...
... • Because of high error rates on copper links it provided for error recovery on a link-bylink basis • Still in use in Europe ...
Chapter 7—packet
... of real time voice – Packet-switching networks for short messages, burst information, as well as real-time applications. ...
... of real time voice – Packet-switching networks for short messages, burst information, as well as real-time applications. ...
PowerPoint XP
... communications through the use of port addresses • Each message contains the destination port to talk to the correct process ...
... communications through the use of port addresses • Each message contains the destination port to talk to the correct process ...
Network Protocols
... Solution • Checksum each message • At a receiver, discard messages with mismatching checksums • A receiver acknowledges if a packet is received properly • A sender resends the same message after not hearing the acknowledgment for some time (a timeout period) ...
... Solution • Checksum each message • At a receiver, discard messages with mismatching checksums • A receiver acknowledges if a packet is received properly • A sender resends the same message after not hearing the acknowledgment for some time (a timeout period) ...
csci5211: Computer Networks and Data Communications
... would like to communicate with – Address: bit- or byte-string that identifies a node – Types of addresses • Unicast: node-specific • Broadcast: all nodes in the network • Multicast: some subset of nodes in the network ...
... would like to communicate with – Address: bit- or byte-string that identifies a node – Types of addresses • Unicast: node-specific • Broadcast: all nodes in the network • Multicast: some subset of nodes in the network ...
ch12
... the next node, and encapsulates the remainder of the frame with new addressing data for the next node. It then passes the frame back to the data link layer, which reformats the frame suitably for the next node, and creates new error checking data. The frame is then passed to the physical layer for t ...
... the next node, and encapsulates the remainder of the frame with new addressing data for the next node. It then passes the frame back to the data link layer, which reformats the frame suitably for the next node, and creates new error checking data. The frame is then passed to the physical layer for t ...
ADSL Network - Binus Repository
... that have been preconfigured by the carrier are used. • Virtual circuits may be established dynamically by sending signaling messages to the network. In this case they are called switched virtual circuits (SVCs). ...
... that have been preconfigured by the carrier are used. • Virtual circuits may be established dynamically by sending signaling messages to the network. In this case they are called switched virtual circuits (SVCs). ...
Fragmentation and IP Forwarding
... 32 bit source IP address 32 bit destination IP address Options (if any) ...
... 32 bit source IP address 32 bit destination IP address Options (if any) ...
Packet switching
Packet switching is a digital networking communications method that groups all transmitted data into suitably sized blocks, called packets, which are transmitted via a medium that may be shared by multiple simultaneous communication sessions. Packet switching increases network efficiency, robustness and enables technological convergence of many applications operating on the same network.Packets are composed of a header and payload. Information in the header is used by networking hardware to direct the packet to its destination where the payload is extracted and used by application software.Starting in the late 1950s, American computer scientist Paul Baran developed the concept Distributed Adaptive Message Block Switching with the goal to provide a fault-tolerant, efficient routing method for telecommunication messages as part of a research program at the RAND Corporation, funded by the US Department of Defense. This concept contrasted and contradicted the heretofore established principles of pre-allocation of network bandwidth, largely fortified by the development of telecommunications in the Bell System. The new concept found little resonance among network implementers until the independent work of Donald Davies at the National Physical Laboratory (United Kingdom) (NPL) in the late 1960s. Davies is credited with coining the modern name packet switching and inspiring numerous packet switching networks in Europe in the decade following, including the incorporation of the concept in the early ARPANET in the United States.