Switching and Routing
... • Where should these functions be realized? – How does the Internet realize these functions? • No deadlock issue • Reliability/flow control/in-order delivery are done at the TCP layer? • The network layer (IP) provides best effort service. – IP is done in the software as well. ...
... • Where should these functions be realized? – How does the Internet realize these functions? • No deadlock issue • Reliability/flow control/in-order delivery are done at the TCP layer? • The network layer (IP) provides best effort service. – IP is done in the software as well. ...
CCNA 1 Module 10 Routing Fundamentals and Subnets
... more routing metrics to determine the optimal path. • Routing metrics are values used in determining the advantage of one route over another. • Routing protocols use various combinations of metrics for determining the best path for data. ...
... more routing metrics to determine the optimal path. • Routing metrics are values used in determining the advantage of one route over another. • Routing protocols use various combinations of metrics for determining the best path for data. ...
paper
... communities and other academic researchers involved in NC. We also believe the demonstration to be useful for network operators and equipment providers who want to experiment with NC before development or deployment decisions. ...
... communities and other academic researchers involved in NC. We also believe the demonstration to be useful for network operators and equipment providers who want to experiment with NC before development or deployment decisions. ...
hosts
... How is it possible to send bits across incompatible LANs and WANs? • Solution: protocol software running on each host and router smoothes out the differences between the different networks. • An internet protocol (set of rules) governs how hosts and routers should cooperate when they transfer data f ...
... How is it possible to send bits across incompatible LANs and WANs? • Solution: protocol software running on each host and router smoothes out the differences between the different networks. • An internet protocol (set of rules) governs how hosts and routers should cooperate when they transfer data f ...
Evaluating the impact of RTS-CTS in OLPC`s XOs` Mesh Networks
... XOs have one single radio and therefore one physical layer (PHY). Nevertheless, the wireless driver implements two interfaces: eth0, the main interface which is used for infrastructure traffic and msh0, for mesh traffic. Therefore XOs can perform as STAs or MPs. They can also perform the MPP role an ...
... XOs have one single radio and therefore one physical layer (PHY). Nevertheless, the wireless driver implements two interfaces: eth0, the main interface which is used for infrastructure traffic and msh0, for mesh traffic. Therefore XOs can perform as STAs or MPs. They can also perform the MPP role an ...
Chedar P2P platform InBCT 3.2 Peer-to
... • If connection has neighbor which relayed hits proportion of all neighbors relayed hits and connection’s hits is more than the given percent a new connection to that neighbor is established and current connection is dropt ...
... • If connection has neighbor which relayed hits proportion of all neighbors relayed hits and connection’s hits is more than the given percent a new connection to that neighbor is established and current connection is dropt ...
2 - Distributed Systems
... Physical layer: transmitting bits between sender and receiver Data link layer: transmitting frames over a link, error detection and correction Network layer: routing of packets between source host and destination host ...
... Physical layer: transmitting bits between sender and receiver Data link layer: transmitting frames over a link, error detection and correction Network layer: routing of packets between source host and destination host ...
Network Address Translation
... addresses, as long as there are unused addresses left If a mapping already exists for the internal host this one is used instead As long as the mapping exists the internal host can be reached via the IP that has been (temporarily) assigned to it ...
... addresses, as long as there are unused addresses left If a mapping already exists for the internal host this one is used instead As long as the mapping exists the internal host can be reached via the IP that has been (temporarily) assigned to it ...
Three Challenges in Reliable Data Transport over Heterogeneous
... Bandwidth: 10-1000 times more in the forward direction Latency: Variability due to MAC protocol interactions Packet loss: Higher loss- or error-rate in one direction ...
... Bandwidth: 10-1000 times more in the forward direction Latency: Variability due to MAC protocol interactions Packet loss: Higher loss- or error-rate in one direction ...
lecture 03 - UniMAP Portal
... Question: How is the receiver to know second ACK is for frame 0? Answer: Add frame sequence number in ACK header Rnext is sequence number of next frame expected by the receiver ...
... Question: How is the receiver to know second ACK is for frame 0? Answer: Add frame sequence number in ACK header Rnext is sequence number of next frame expected by the receiver ...
Control Message
... WXES2106 Network Technology Semester 1 2004/2005 Chapter 7 TCP/IP Suite Error and Control Messages ...
... WXES2106 Network Technology Semester 1 2004/2005 Chapter 7 TCP/IP Suite Error and Control Messages ...
Multiprotocol Label Switching
... comprises a number of interrelated protocols - MPLS protocol suite is used to ensure that all packets in a particular flow take the same route over a backbone deployed by many telecommunication companies and service providers delivers QoS required to support real-time voice and video and SLAs that g ...
... comprises a number of interrelated protocols - MPLS protocol suite is used to ensure that all packets in a particular flow take the same route over a backbone deployed by many telecommunication companies and service providers delivers QoS required to support real-time voice and video and SLAs that g ...
Network Layer
... Every router on source-dest path maintains “state” for each passing connection Link, router resources (bandwidth, buffers) may be allocated to VC (dedicated resources = predictable service) ...
... Every router on source-dest path maintains “state” for each passing connection Link, router resources (bandwidth, buffers) may be allocated to VC (dedicated resources = predictable service) ...
Elektronischer Hšrsaal
... could ping. You could get a UDP packet through. Telnet and FTP would fail after a while. And it depended on where you were going (some hosts were just fine, others flaky) and time of day (I did a lot of work on weekends in the late 1980s and the network was wonderfully free then). Around 1pm was bad ...
... could ping. You could get a UDP packet through. Telnet and FTP would fail after a while. And it depended on where you were going (some hosts were just fine, others flaky) and time of day (I did a lot of work on weekends in the late 1980s and the network was wonderfully free then). Around 1pm was bad ...
tcp - clear - Rice University
... – Maintain different sequence numbers for each direction – A single packet can contain new data for one direction, plus acknowledgement for other • May also contain only data or only acknowledgement T. S. Eugene Ng ...
... – Maintain different sequence numbers for each direction – A single packet can contain new data for one direction, plus acknowledgement for other • May also contain only data or only acknowledgement T. S. Eugene Ng ...
3rd Edition, Chapter 5
... Ethernet Frame Structure (more) Addresses: 6 bytes if adapter receives frame with matching destination address, or with broadcast address (eg ARP packet), it passes data in frame to net-layer protocol otherwise, adapter discards frame ...
... Ethernet Frame Structure (more) Addresses: 6 bytes if adapter receives frame with matching destination address, or with broadcast address (eg ARP packet), it passes data in frame to net-layer protocol otherwise, adapter discards frame ...
ppt - Andrew.cmu.edu
... For user to control display: rewind, fast forward, pause, resume, etc… Out-of-band protocol (uses two connections, one for control messages (Port 554) and one for media stream) RFC 2326 permits use of either TCP or UDP for the control messages connection, sometimes called the RTSP Channel As before, ...
... For user to control display: rewind, fast forward, pause, resume, etc… Out-of-band protocol (uses two connections, one for control messages (Port 554) and one for media stream) RFC 2326 permits use of either TCP or UDP for the control messages connection, sometimes called the RTSP Channel As before, ...
1 - Sitecom
... because IPX packets include network addresses, data can be exchanged between different networks. SPX ensures that an entire message (a data IPX packet) arrives intact. TCP/IP: An acronym for Transmission Control Protocol/Internet Protocol, TCP/IP was developed by the U.S. Department of Defence to co ...
... because IPX packets include network addresses, data can be exchanged between different networks. SPX ensures that an entire message (a data IPX packet) arrives intact. TCP/IP: An acronym for Transmission Control Protocol/Internet Protocol, TCP/IP was developed by the U.S. Department of Defence to co ...
Chapter 04 Modern Applications
... socket on another computer • Once appropriate sockets engaged, can exchange data • Server sockets keep TCP or UDP port open • Once connected server switches dialogue to different port ...
... socket on another computer • Once appropriate sockets engaged, can exchange data • Server sockets keep TCP or UDP port open • Once connected server switches dialogue to different port ...
IPv6 Addressing
... • Idea for the name taken from Star Trek • Officially known as IPv6 (Internet Protocol version 6) • Will be the successor to IPv4 • 4 + 1 = 6? Versions goofed up: Version 5 assigned to the ST protocol. When IETF first started planning a successor to IPv4, a document incorrectly listed the current ve ...
... • Idea for the name taken from Star Trek • Officially known as IPv6 (Internet Protocol version 6) • Will be the successor to IPv4 • 4 + 1 = 6? Versions goofed up: Version 5 assigned to the ST protocol. When IETF first started planning a successor to IPv4, a document incorrectly listed the current ve ...
Chs6-8min
... 8.2 The Internet Control Message Protocol ICMP is a required part of IP. Although IP does not guarantee delivery, it does not capriciously discard datagrams and when it is forced to do so it tries to be helpful by sending an ICMP message. Both routers and hosts send ICMP messages. ...
... 8.2 The Internet Control Message Protocol ICMP is a required part of IP. Although IP does not guarantee delivery, it does not capriciously discard datagrams and when it is forced to do so it tries to be helpful by sending an ICMP message. Both routers and hosts send ICMP messages. ...
3rd Edition, Chapter 5 - Northwestern Networks Group
... packet, containing B's IP address dest MAC address = FFFF-FF-FF-FF-FF all machines on LAN receive ARP query B receives ARP packet, replies to A with its (B's) MAC address ...
... packet, containing B's IP address dest MAC address = FFFF-FF-FF-FF-FF all machines on LAN receive ARP query B receives ARP packet, replies to A with its (B's) MAC address ...
Module 2: Networking Fundamentals
... Instead of linking the hubs and/or switches together, the system is linked to a computer that controls the traffic on the topology. Tree Mesh topology Each host has its own connections to all other hosts. It provides much protection as possible from interruption of service. Nuclear power ...
... Instead of linking the hubs and/or switches together, the system is linked to a computer that controls the traffic on the topology. Tree Mesh topology Each host has its own connections to all other hosts. It provides much protection as possible from interruption of service. Nuclear power ...
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).