ECE/CS 4984: Lecture 11
... Loss Detection: TCP Vegas ● Coarse-grain timeout mechanism ■ Same as for TCP Reno ● Fine-grain timeout mechanism ■ If a duplicate ACK is received and the round-trip time of the first unacknowledged segment exceeds the fine-grain timeout value, then segment loss is assumed and requested segment is r ...
... Loss Detection: TCP Vegas ● Coarse-grain timeout mechanism ■ Same as for TCP Reno ● Fine-grain timeout mechanism ■ If a duplicate ACK is received and the round-trip time of the first unacknowledged segment exceeds the fine-grain timeout value, then segment loss is assumed and requested segment is r ...
Internet:Overview - CSE Labs User Home Pages
... • Solution 1: make each step reliable, and then concatenate them • Solution 2: each step unreliable: end-toend check and retry CSci8211: ...
... • Solution 1: make each step reliable, and then concatenate them • Solution 2: each step unreliable: end-toend check and retry CSci8211: ...
Network Protocols
... devices in an IP network •No two computers on the Internet can have the same IP address ...
... devices in an IP network •No two computers on the Internet can have the same IP address ...
1-ITN-chap-3g
... that governs the way a web server and a web client interact. Transport Protocol - Transmission Control Protocol (TCP) is the transport protocol that manages the individual conversations between web servers and web clients. Internet Protocol - IP is responsible for assigning the appropriate addre ...
... that governs the way a web server and a web client interact. Transport Protocol - Transmission Control Protocol (TCP) is the transport protocol that manages the individual conversations between web servers and web clients. Internet Protocol - IP is responsible for assigning the appropriate addre ...
(P2) Protocols
... UDP - The User Datagram Protocol is a transport layer protocol like TCP but is less complex and reliable than TCP ICMP - The Internet Control Message Protocol carries network error messages and other network software requirements Comment: This protocol family is used by many networks especially ...
... UDP - The User Datagram Protocol is a transport layer protocol like TCP but is less complex and reliable than TCP ICMP - The Internet Control Message Protocol carries network error messages and other network software requirements Comment: This protocol family is used by many networks especially ...
bYTEBoss CHEBROLU_kameswari_poster
... We term the services enabled by such simultaneous use of multiple interfaces as Multi-Access Services. In this work, we develop a network layer architecture that supports multiple communication paths. We also implement most of the functional components that make up our architecture as proof of conce ...
... We term the services enabled by such simultaneous use of multiple interfaces as Multi-Access Services. In this work, we develop a network layer architecture that supports multiple communication paths. We also implement most of the functional components that make up our architecture as proof of conce ...
Communication Network Protocols
... • If the sender doesn’t have a route to a destination it then attempts to find out by using a routing discovery process • While waiting for the routing discovery to complete the sender continues sending and receiving packets with other hosts • Each host uses a route maintenance procedure to monitor ...
... • If the sender doesn’t have a route to a destination it then attempts to find out by using a routing discovery process • While waiting for the routing discovery to complete the sender continues sending and receiving packets with other hosts • Each host uses a route maintenance procedure to monitor ...
Looking deeper into ARQ “frames”
... o Due to bit error? => just retransmit immediately o Ethernet: sustain collision through jamming to differentiate from probably transient noise o Wifi: can’t differentiate • TCP: Why didn’t my packet get through? o Due to congestion? => slow down o Due to bit error => retransmit immediately o Critic ...
... o Due to bit error? => just retransmit immediately o Ethernet: sustain collision through jamming to differentiate from probably transient noise o Wifi: can’t differentiate • TCP: Why didn’t my packet get through? o Due to congestion? => slow down o Due to bit error => retransmit immediately o Critic ...
Chapter 4 : TCP/IP and OSI
... within the computer to allow support for multiple applications (service access points, or SAP) ...
... within the computer to allow support for multiple applications (service access points, or SAP) ...
ppt
... /* SendBase–1: last cumulatively ACKed byte */ if (there are currently not-yet-acked segments) ...
... /* SendBase–1: last cumulatively ACKed byte */ if (there are currently not-yet-acked segments) ...
ppt
... • Interactions with TCP retransmission • Large end-to-end round-trip time variation • Recall TCP RTO estimation. What does this do? FEC used in some networks (e.g., 802.11a) • But does not work well with burst losses ...
... • Interactions with TCP retransmission • Large end-to-end round-trip time variation • Recall TCP RTO estimation. What does this do? FEC used in some networks (e.g., 802.11a) • But does not work well with burst losses ...
Protocol Suites - York Technical College
... TCP/IP - Transmission Control Protocol/Internet Protocol ...
... TCP/IP - Transmission Control Protocol/Internet Protocol ...
Lecture 1 - Intro
... • Calculations are carried out in an iterative, distributed manner. • Router knows link costs to physically connected adjacent nodes • “Distance vector” algorithms (RIP, Routing Information Protocol) ...
... • Calculations are carried out in an iterative, distributed manner. • Router knows link costs to physically connected adjacent nodes • “Distance vector” algorithms (RIP, Routing Information Protocol) ...
ppt
... • Network layer (IP) provides basic unreliable packet delivery between end-points • Transport layer needs to provide reliability, congestion control, flow control, etc. for applications • TCP variants • SCTP • DCCP • TLS • DTLS ...
... • Network layer (IP) provides basic unreliable packet delivery between end-points • Transport layer needs to provide reliability, congestion control, flow control, etc. for applications • TCP variants • SCTP • DCCP • TLS • DTLS ...
Effect of transfer file size on TCP-ADaLR performance: a simulation
... protocols such as FTP and HTTP [7]. TCP utilizes window flow control to adjust its transmission rate. The ...
... protocols such as FTP and HTTP [7]. TCP utilizes window flow control to adjust its transmission rate. The ...
Chapter 3
... (A=i,W=j) [A=Ack, W=window]: receiver acks up to ‘i-1’ bytes and allows/anticipates i up to i+j-1 receiver can use the cumulative ack option and not respond immediately ...
... (A=i,W=j) [A=Ack, W=window]: receiver acks up to ‘i-1’ bytes and allows/anticipates i up to i+j-1 receiver can use the cumulative ack option and not respond immediately ...
Chapter 5
... Creation of data connection is under control of client. Client chooses an ephemeral port number on the client host for its end of the data connection. Client sends the PORT command to the server across the control connection. Server receives the port number and issues an active open to that port on ...
... Creation of data connection is under control of client. Client chooses an ephemeral port number on the client host for its end of the data connection. Client sends the PORT command to the server across the control connection. Server receives the port number and issues an active open to that port on ...
Cookie file
... » Solve the problem at the transport layer » Could fix TCP so it works well with multiple simultaneous connections – More difficult to deploy ...
... » Solve the problem at the transport layer » Could fix TCP so it works well with multiple simultaneous connections – More difficult to deploy ...
Closure - The University of Sydney
... • Understand WHY protocols were designed the way they were • Understand what is good and bad with the designs • Read through relevant RFCs • There are some fundamental mechanisms in the protocol stack. Understand these mechanisms. Bjorn Landfeldt, The University of Sydney ...
... • Understand WHY protocols were designed the way they were • Understand what is good and bad with the designs • Read through relevant RFCs • There are some fundamental mechanisms in the protocol stack. Understand these mechanisms. Bjorn Landfeldt, The University of Sydney ...
FlowScan - LIVE! A Network Traffic Reporting and Visualization Tool
... Packet sampling broke some things we expected and more. • Our security team relied on the logs produced by the 1 to 1 flow exporting when investigating network abuse and technocrimes. We no longer could provide a completely accurate view of our network traffic. • We lost the ability to detect DoS at ...
... Packet sampling broke some things we expected and more. • Our security team relied on the logs produced by the 1 to 1 flow exporting when investigating network abuse and technocrimes. We no longer could provide a completely accurate view of our network traffic. • We lost the ability to detect DoS at ...
Congestion Control Problem
... the right number of packets:. – What type of feedback signal is used (implicit, explicit)? Explicit signals add to the packet overhead. – How do the sources react to this information? Is a rate based or a window based protocol used? In the latter case how is the conversion made? – It is probable tha ...
... the right number of packets:. – What type of feedback signal is used (implicit, explicit)? Explicit signals add to the packet overhead. – How do the sources react to this information? Is a rate based or a window based protocol used? In the latter case how is the conversion made? – It is probable tha ...
IT1402 -MOBILE COMPUTING
... The TCP layer won’t accept data from the application unless (or until) there is buffer space. ...
... The TCP layer won’t accept data from the application unless (or until) there is buffer space. ...
M/TCP - Internet Conference 2016
... implementation can simultaneously transmit data via multiple paths to the same destination. M/TCP requires no modification in IP layer. What is needed is that two endpoints communicating through M/TCP must have multiple network interfaces to be subscribed to multiple ISPs as depicted in Fig. 1. This ...
... implementation can simultaneously transmit data via multiple paths to the same destination. M/TCP requires no modification in IP layer. What is needed is that two endpoints communicating through M/TCP must have multiple network interfaces to be subscribed to multiple ISPs as depicted in Fig. 1. This ...