Security Problems in the TCP/IP Protocol Suite
... Problem: Recursive zone transfer requests to download entire database Solution: Employ “refused” error code for any requests from unidentified servers ...
... Problem: Recursive zone transfer requests to download entire database Solution: Employ “refused” error code for any requests from unidentified servers ...
ppt File - users.cs.umn.edu
... Why QP/IP TCP/IP network is robust, ubiquitous However, TCP/IP is not designed for highperformance, low-latency purpose Queue Pair abstraction provides a way to offload CPU processing, reduce the critical data path, provide memory zero copy The Integration of QP and IP may be able to reduce the lat ...
... Why QP/IP TCP/IP network is robust, ubiquitous However, TCP/IP is not designed for highperformance, low-latency purpose Queue Pair abstraction provides a way to offload CPU processing, reduce the critical data path, provide memory zero copy The Integration of QP and IP may be able to reduce the lat ...
DEPARTMENT OF ECE 2-MARK QUESTIONS AND ANSWERS S
... 15. What is the frequency range of Bluetooth devices? The frequency range of Bluetooth device is 2.4 GHZ 16. What is the need of connecting devices? To connect LANs or segments of LAN we use connecting devices. These devices can operate in different layers of internet model. 17. What type of address ...
... 15. What is the frequency range of Bluetooth devices? The frequency range of Bluetooth device is 2.4 GHZ 16. What is the need of connecting devices? To connect LANs or segments of LAN we use connecting devices. These devices can operate in different layers of internet model. 17. What type of address ...
lecture20
... substitute ‘‘disconnect’’ for ‘‘attack.’’ If neither side is prepared to disconnect until it is convinced that the other side is prepared to disconnect too, the disconnection will never happen. ...
... substitute ‘‘disconnect’’ for ‘‘attack.’’ If neither side is prepared to disconnect until it is convinced that the other side is prepared to disconnect too, the disconnection will never happen. ...
communicate
... How do they compare? • Protocol differences [Krishnamurthy99], performance comparison [Nielsen97], effects on servers [Manley97], overhead of TCP connections [Caceres98] ...
... How do they compare? • Protocol differences [Krishnamurthy99], performance comparison [Nielsen97], effects on servers [Manley97], overhead of TCP connections [Caceres98] ...
W(t) - Homepages | The University of Aberdeen
... A packet, successfully delivered at the bottleneck link, can be lost randomly with probability q. The evolution of congestion window is determined by the window size w at the beginning of cwnd-cycle (Markov process) ...
... A packet, successfully delivered at the bottleneck link, can be lost randomly with probability q. The evolution of congestion window is determined by the window size w at the beginning of cwnd-cycle (Markov process) ...
Introduction - Reference Models
... • Service, interface, and protocol not distinguished • Not a general model • Host-to-network “layer” not really a layer • No mention of physical and data link layers • Minor protocols deeply entrenched, hard to replace ...
... • Service, interface, and protocol not distinguished • Not a general model • Host-to-network “layer” not really a layer • No mention of physical and data link layers • Minor protocols deeply entrenched, hard to replace ...
Networking
... Both sides will have seen one packet from the other side, thus know what the first seqno ought to be Both sides will know that the other side is ready to receive ...
... Both sides will have seen one packet from the other side, thus know what the first seqno ought to be Both sides will know that the other side is ready to receive ...
Chapter 5 - Indiana State University
... Given maximum packet size, most messages are split into >1 packet Web browsers build page a packet at a time, especially streaming and graphics Email clients wait until all packets have arrived and are reassembled ...
... Given maximum packet size, most messages are split into >1 packet Web browsers build page a packet at a time, especially streaming and graphics Email clients wait until all packets have arrived and are reassembled ...
ppt - EECS: www-inst.eecs.berkeley.edu
... model world as events - maintain queue of events, ordered by time - maintain [virtual time] - repeat: • extract event at head, set [virtual time]=event’s time • process it • if processing generates another event, add it to queue ...
... model world as events - maintain queue of events, ordered by time - maintain [virtual time] - repeat: • extract event at head, set [virtual time]=event’s time • process it • if processing generates another event, add it to queue ...
Talk Viewgraphs - People
... Concluding Remarks for Part I under the conditions we identified, equation-based rate control is conservative when loss-event rate is large, it is overly conservative different TCP throughput formulae may yield different bias ...
... Concluding Remarks for Part I under the conditions we identified, equation-based rate control is conservative when loss-event rate is large, it is overly conservative different TCP throughput formulae may yield different bias ...
Transport Layer
... influence of given sample decreases exponentially fast typical value of x: 0.1 ...
... influence of given sample decreases exponentially fast typical value of x: 0.1 ...
ppt - EECS: www-inst.eecs.berkeley.edu
... inefficient when traffic is bursty complexity of circuit setup/teardown circuit setup adds delay switch fails its circuit(s) fails ...
... inefficient when traffic is bursty complexity of circuit setup/teardown circuit setup adds delay switch fails its circuit(s) fails ...
![[slides] Introduction](http://s1.studyres.com/store/data/000071965_1-ad3bfbc03953cb954fa70b8bdbbdb4bb-300x300.png)
[slides] Introduction
... Transport layer: – TCP (transmission control protocol)– provides an error free pipe, congestion control, limited bandwidth and relatively large latency – UDP (user datagram protocol) – best effort delivery (packets can get lost), no congestion or bandwidth control, usually lower latency than TCP ...
... Transport layer: – TCP (transmission control protocol)– provides an error free pipe, congestion control, limited bandwidth and relatively large latency – UDP (user datagram protocol) – best effort delivery (packets can get lost), no congestion or bandwidth control, usually lower latency than TCP ...
Slides for Chapter 3: Networking and Internetworking
... differ. Encryption is also performed in this layer, if required. At this level reliability and adaptation are performed, such as detection of failures and automatic recovery. This is the lowest level at which messages (rather than packets) are handled. Messages are addressed to communication ports a ...
... differ. Encryption is also performed in this layer, if required. At this level reliability and adaptation are performed, such as detection of failures and automatic recovery. This is the lowest level at which messages (rather than packets) are handled. Messages are addressed to communication ports a ...
internet overview lecture slides
... request goes to a root nameserver to find out where the appropriate top level domain server (.edu) is, then that server is queried as to where the host (buffalo) is, then the host is queried for the address of the actual computer in question (mediastudy) ...
... request goes to a root nameserver to find out where the appropriate top level domain server (.edu) is, then that server is queried as to where the host (buffalo) is, then the host is queried for the address of the actual computer in question (mediastudy) ...
Computer Networking
... into the link • Propagation delay : the time required to propagate from the beginning of the link to the next router • traffic intensity : La/R – L : number of bits of packet – a : average rate at which packets arrive to the queue – R : transmission rate ...
... into the link • Propagation delay : the time required to propagate from the beginning of the link to the next router • traffic intensity : La/R – L : number of bits of packet – a : average rate at which packets arrive to the queue – R : transmission rate ...
Transport Layer
... influence of given sample decreases exponentially fast typical value of x: 0.1 ...
... influence of given sample decreases exponentially fast typical value of x: 0.1 ...
Some Network Commands - Texas Tech University
... Developed by IBM for its LAN Manager product and has been adopted by Microsoft for its Windows NT, LAN Manager, and Windows for Workgroups products. A new, extended version of NetBIOS, the program that lets computers communicate within a local area network. Formalizes the frame format (or arrangemen ...
... Developed by IBM for its LAN Manager product and has been adopted by Microsoft for its Windows NT, LAN Manager, and Windows for Workgroups products. A new, extended version of NetBIOS, the program that lets computers communicate within a local area network. Formalizes the frame format (or arrangemen ...
Computer and multimedia networks (FM)
... error detection through a checksum. Much faster than TCP, however it is unreliable In most real-time multimedia applications (e.g., streaming video or audio), packets that arrive late are simply discarded. Higher level protocols can be used for retransmission, flow control, and congestion avoi ...
... error detection through a checksum. Much faster than TCP, however it is unreliable In most real-time multimedia applications (e.g., streaming video or audio), packets that arrive late are simply discarded. Higher level protocols can be used for retransmission, flow control, and congestion avoi ...
Chapter 5
... Congestion Control in Virtual-Circuit Subnets Congestion Control in Datagram Subnets Load Shedding Jitter Control ...
... Congestion Control in Virtual-Circuit Subnets Congestion Control in Datagram Subnets Load Shedding Jitter Control ...
Chapter 3 - Department of Computer and Information Science and
... (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 ...