3rd Edition: Chapter 4
... Reliable data transfer: acks Pipelined protocol: in-flight packets Cumulated acks (single timer) Flow control (receiver window size) Congestion control (congestion window ...
... Reliable data transfer: acks Pipelined protocol: in-flight packets Cumulated acks (single timer) Flow control (receiver window size) Congestion control (congestion window ...
Chapter 2 Networking Standards and the OSI Model
... Handles network access, flow control, and error recovery SNMP, FTP, Telnet, DHCP, DNS, WINS, POP, IMAP and SMTP protocols function at this level The Application Layer Demo ...
... Handles network access, flow control, and error recovery SNMP, FTP, Telnet, DHCP, DNS, WINS, POP, IMAP and SMTP protocols function at this level The Application Layer Demo ...
Portfolio: National Networks
... 2. Assist other members of the team, less experienced staff and staff from other infrastructure disciplines on network related issues relating to projects. 3. Keep abreast of trends in the IT industry and provide input to the development of the ABC data network in order to provide an optimum service ...
... 2. Assist other members of the team, less experienced staff and staff from other infrastructure disciplines on network related issues relating to projects. 3. Keep abreast of trends in the IT industry and provide input to the development of the ABC data network in order to provide an optimum service ...
Limitations of Layer2 switching
... Note that when two sources subscribe to the same source, links that they share in common don’t need to reserve 2X the amount of bandwidth. RSVP has evolved into a popular mechanism for receivers to request resources in a network. It is an entire Protocol and will be discussed in more detail later du ...
... Note that when two sources subscribe to the same source, links that they share in common don’t need to reserve 2X the amount of bandwidth. RSVP has evolved into a popular mechanism for receivers to request resources in a network. It is an entire Protocol and will be discussed in more detail later du ...
No Slide Title
... ATM supports two types of connections: – Point-to-point, which connects two ATM end systems and can be unidirectional (one-way communication) or bidirectional (two-way communication). – Point-to-multipoint connects a single-source end system (known as the root node) to multiple destination end sys ...
... ATM supports two types of connections: – Point-to-point, which connects two ATM end systems and can be unidirectional (one-way communication) or bidirectional (two-way communication). – Point-to-multipoint connects a single-source end system (known as the root node) to multiple destination end sys ...
Layer One Networking
... Application layer Presentation layer Session layer Transport layer Network layer Data link layer Physical layer ...
... Application layer Presentation layer Session layer Transport layer Network layer Data link layer Physical layer ...
The Transport Layer
... 5. You can buy more bandwidth but not lower delay. 6. Avoiding congestion is better than recovering from it. 7. Avoid timeouts. ...
... 5. You can buy more bandwidth but not lower delay. 6. Avoiding congestion is better than recovering from it. 7. Avoid timeouts. ...
Presentation
... QoS the service requires - connection setup Applications must specify the traffic characteristics of the microflow – token bucket model - rate and burst size specs. – flows are policed to ensure conformance ...
... QoS the service requires - connection setup Applications must specify the traffic characteristics of the microflow – token bucket model - rate and burst size specs. – flows are policed to ensure conformance ...
Chapter 11: Approaches to Networking
... Packet-Switched Congestion Control When line utilization is >80%, queue length grows too quickly Congestion control limits queue length to avoid througput problems Status information exchanged among nodes Control signals regulate data flow using interface protocols (usually X.25) ...
... Packet-Switched Congestion Control When line utilization is >80%, queue length grows too quickly Congestion control limits queue length to avoid througput problems Status information exchanged among nodes Control signals regulate data flow using interface protocols (usually X.25) ...
Lecture 1
... • 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 ...
... • 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 ...
PDF
... ❒ router knows physically-connected neighbors, link costs to neighbors ❒ iterative process of computation, exchange of info with neighbors (gossip) ...
... ❒ router knows physically-connected neighbors, link costs to neighbors ❒ iterative process of computation, exchange of info with neighbors (gossip) ...
Convergence
... Carriers with Facilities • Constructing new networks too expensive • Switches are now connected to networks • Carriers with switches buy exclusive access to fiber optic channels – Indefeasible Right to Use (IRU) – carrier purchases the rights to a set number of fiber strands from owners of fiber ne ...
... Carriers with Facilities • Constructing new networks too expensive • Switches are now connected to networks • Carriers with switches buy exclusive access to fiber optic channels – Indefeasible Right to Use (IRU) – carrier purchases the rights to a set number of fiber strands from owners of fiber ne ...
Intro to Networking
... the CRC algorithm to detect errors, communication will not be successful. The peer entities at each layer must agree on the protocol. As another example, one of the functions of the physical layer is to determine how logical 1 and logical 0 are represented. If the physical layer of the machine on th ...
... the CRC algorithm to detect errors, communication will not be successful. The peer entities at each layer must agree on the protocol. As another example, one of the functions of the physical layer is to determine how logical 1 and logical 0 are represented. If the physical layer of the machine on th ...
04. Reference models..
... TCP/IP model is called the transport layer Designed to allow peer entities on the source and destination hosts to carry on a conversation Two end-to-end transport protocols have been defined here TCP (Transmission Control Protocol), is a reliable connection-oriented protocol that allows a byte ...
... TCP/IP model is called the transport layer Designed to allow peer entities on the source and destination hosts to carry on a conversation Two end-to-end transport protocols have been defined here TCP (Transmission Control Protocol), is a reliable connection-oriented protocol that allows a byte ...
04. Reference models..
... TCP/IP model is called the transport layer Designed to allow peer entities on the source and destination hosts to carry on a conversation Two end-to-end transport protocols have been defined here TCP (Transmission Control Protocol), is a reliable connection-oriented protocol that allows a byte ...
... TCP/IP model is called the transport layer Designed to allow peer entities on the source and destination hosts to carry on a conversation Two end-to-end transport protocols have been defined here TCP (Transmission Control Protocol), is a reliable connection-oriented protocol that allows a byte ...
Computer Networks and Internets
... only recognizes MAC addresses IP only uses IP addresses Consequence: software needed to perform ...
... only recognizes MAC addresses IP only uses IP addresses Consequence: software needed to perform ...
Chap 3 Layer 3 Protocol
... Router & local ARP table A typical device contains mapping information pertaining only to devices on its own network Routers build tables that describe all networks connected to them ...
... Router & local ARP table A typical device contains mapping information pertaining only to devices on its own network Routers build tables that describe all networks connected to them ...
network layer - WordPress.com
... The network layer controls the operation of the subnet, deciding which physical path the data should take based on network conditions, priority of service, and other factors. It provides: ...
... The network layer controls the operation of the subnet, deciding which physical path the data should take based on network conditions, priority of service, and other factors. It provides: ...
The Open System Interconnection (OSI)
... theoretical framework for understanding and explaining networking protocols Originally an effort by the ISO (International Standards Organization) to standardize network protocols TCP/IP became the dominant set of standards but the OSI model is widely used to help understand protocols The OSI model ...
... theoretical framework for understanding and explaining networking protocols Originally an effort by the ISO (International Standards Organization) to standardize network protocols TCP/IP became the dominant set of standards but the OSI model is widely used to help understand protocols The OSI model ...
the T-Link is
... • T-Link is the leading Internet and network product on the market and is the recipient of key industry awards • Communications are secured with AES encryption that is approved by NIST for homeland security applications • T-Link sends very small 80 byte packets of information so there is no real imp ...
... • T-Link is the leading Internet and network product on the market and is the recipient of key industry awards • Communications are secured with AES encryption that is approved by NIST for homeland security applications • T-Link sends very small 80 byte packets of information so there is no real imp ...
lecture2
... • Manually configuring IP information can be hard – Large networks (lots of hosts, many of which are unreachable until configured!) – Configuration process error prone • Every host needs correct network number • No two hosts can have same IP address ...
... • Manually configuring IP information can be hard – Large networks (lots of hosts, many of which are unreachable until configured!) – Configuration process error prone • Every host needs correct network number • No two hosts can have same IP address ...
Recursive InterNetwork Architecture (RINA)
The Recursive InterNetwork Architecture (RINA) is a computer network architecture that unifies distributed computing and telecommunications. RINA's fundamental principle is that computer networking is just Inter-Process Communication or IPC. RINA reconstructs the overall structure of the Internet, forming a model that comprises a single repeating layer, the DIF (Distributed IPC Facility), which is the minimal set of components required to allow distributed IPC between application processes. RINA inherently supports mobility, multi-homing and Quality of Service without the need for extra mechanisms, provides a secure and programmable environment, motivates for a more competitive marketplace, and allows for a seamless adoption.