PPT - Pages
... – Spurious retransmissions of packets still in flight • Classical congestion collapse ...
... – Spurious retransmissions of packets still in flight • Classical congestion collapse ...
4th Edition: Chapter 1
... What’s the Internet: “nuts and bolts” view protocols control sending, ...
... What’s the Internet: “nuts and bolts” view protocols control sending, ...
Chapter 4 slides
... for “channel” transporting packets from sender to receiver? guaranteed bandwidth? preservation of inter-packet ...
... for “channel” transporting packets from sender to receiver? guaranteed bandwidth? preservation of inter-packet ...
Unit 2 Lesson 2
... Although real network applications don’t always incorporate protocols from every layer, or sometimes combine the functions of two layers, it is important to understand how the OSI model is used as a framework for the protocols used when transmitting data. Transmission of data packets occurs in both ...
... Although real network applications don’t always incorporate protocols from every layer, or sometimes combine the functions of two layers, it is important to understand how the OSI model is used as a framework for the protocols used when transmitting data. Transmission of data packets occurs in both ...
The Network Layer
... Datagram-ID. Useful in Fragmentation. Identifies each datagram from others. When a datagram is fragmented, all fragments of a datagram must have the same unique Identification number. The ID number helps destination in reassembling the datagram. ...
... Datagram-ID. Useful in Fragmentation. Identifies each datagram from others. When a datagram is fragmented, all fragments of a datagram must have the same unique Identification number. The ID number helps destination in reassembling the datagram. ...
Multicast - s3.amazonaws.com
... all three interfaces use class C addresses. Will the IP address of the three interfaces necessarily have the same first eight bits? 3. Suppose an application generates chunks of 40 bytes of data every 20 ms and each chunk gets encapsulated in a TCP segment and then an IP datagram. What percentages o ...
... all three interfaces use class C addresses. Will the IP address of the three interfaces necessarily have the same first eight bits? 3. Suppose an application generates chunks of 40 bytes of data every 20 ms and each chunk gets encapsulated in a TCP segment and then an IP datagram. What percentages o ...
Chapter4_4th - Northwestern University
... simple inside network, complexity inside complexity at “edge” network many link types different characteristics uniform service difficult Given the VC networks, do we still need the transport layer support? ...
... simple inside network, complexity inside complexity at “edge” network many link types different characteristics uniform service difficult Given the VC networks, do we still need the transport layer support? ...
Network-INT201-06 - Department of Computer Engineering
... N = set of routers = { u, v, w, x, y, z } E = set of links ={ (u,v), (u,x), (v,x), (v,w), (x,w), (x,y), (w,y), (w,z), (y,z) } Remark: Graph abstraction is useful in other network contexts Example: P2P, where N is set of peers and E is set of TCP connections Network Layer (part2) ...
... N = set of routers = { u, v, w, x, y, z } E = set of links ={ (u,v), (u,x), (v,x), (v,w), (x,w), (x,y), (w,y), (w,z), (y,z) } Remark: Graph abstraction is useful in other network contexts Example: P2P, where N is set of peers and E is set of TCP connections Network Layer (part2) ...
Top-Down Network Design
... network design must recognizes customer’s requirements. Network design choices and tradeoffs must be made when designing the logic network before any physical devices are selected. ...
... network design must recognizes customer’s requirements. Network design choices and tradeoffs must be made when designing the logic network before any physical devices are selected. ...
Diapositive 1
... • Intuition when d=N/C=o(N) and R=o(N): – per TS: RN N – once R copies have been spread out: ...
... • Intuition when d=N/C=o(N) and R=o(N): – per TS: RN N – once R copies have been spread out: ...
PowerPoint slides
... from other user, and due to noise [Karn99pilc] Interference due to other users is an indication of congestion. If such interference causes transmission errors, it is appropriate to reduce congestion window If noise causes errors, it is not appropriate to reduce window ...
... from other user, and due to noise [Karn99pilc] Interference due to other users is an indication of congestion. If such interference causes transmission errors, it is appropriate to reduce congestion window If noise causes errors, it is not appropriate to reduce window ...
ppt
... • Losses at link (A,C) causes retransmission to the whole group • Only retransmit to those members who lost the packet • [Only request from the nearest responder] ...
... • Losses at link (A,C) causes retransmission to the whole group • Only retransmit to those members who lost the packet • [Only request from the nearest responder] ...
Computer Networks II
... AKAY Others Course Objective The objective of this course is to introduce students to a set of basic topics in networking and lead them to the understanding of the networking architecture. Relationship Students who have completed the course successfully should be able to Net Effect Prog. Output ...
... AKAY Others Course Objective The objective of this course is to introduce students to a set of basic topics in networking and lead them to the understanding of the networking architecture. Relationship Students who have completed the course successfully should be able to Net Effect Prog. Output ...
Introduction to Computer Networking
... • netstat – a command to display current network connections (see netstat help) • netstat – default to display current TCP connections • netstat –a – display all connections, including listening • tracert – this command will display the path to the target host ...
... • netstat – a command to display current network connections (see netstat help) • netstat – default to display current TCP connections • netstat –a – display all connections, including listening • tracert – this command will display the path to the target host ...
Routers - Personal Web Pages
... from two different routing protocols Administrative distance defines the reliability of a routing protocol Each routing protocol gets prioritized in order of most to least reliable using an administrativedistance value ...
... from two different routing protocols Administrative distance defines the reliability of a routing protocol Each routing protocol gets prioritized in order of most to least reliable using an administrativedistance value ...
notes
... • NAT box must maintain mapping info for each connection passing through it. This changes the Internet from a connectionless network to a kind of connection-oriented network • NAT violates the most fundamental rule of protocol layering: layer k may not make any assumptions about what layer k+1 has p ...
... • NAT box must maintain mapping info for each connection passing through it. This changes the Internet from a connectionless network to a kind of connection-oriented network • NAT violates the most fundamental rule of protocol layering: layer k may not make any assumptions about what layer k+1 has p ...
Internet Overview - Electrical and Computer Engineering
... NAPs (Network Access Points) are complex high-speed switching networks often concentrated at a single building. Operated by 3rd party telecom or Internet backbone ISP-1. PoPs (Points of Presence) are private group of routers within each ISP and used to connect it (peer it) with other up/down/equal ...
... NAPs (Network Access Points) are complex high-speed switching networks often concentrated at a single building. Operated by 3rd party telecom or Internet backbone ISP-1. PoPs (Points of Presence) are private group of routers within each ISP and used to connect it (peer it) with other up/down/equal ...
3rd Edition: Chapter 4
... run routing algorithms/protocol (RIP, OSPF, BGP) forwarding datagrams from incoming to outgoing link ...
... run routing algorithms/protocol (RIP, OSPF, BGP) forwarding datagrams from incoming to outgoing link ...
Chapter5_24_Nov_2010_v2
... framing, link access: encapsulate datagram into frame, adding header, trailer channel access if shared medium “MAC” addresses used in frame headers to identify source, dest • different from IP address! ...
... framing, link access: encapsulate datagram into frame, adding header, trailer channel access if shared medium “MAC” addresses used in frame headers to identify source, dest • different from IP address! ...
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).