Network I/O Exploratory Meeting
... Other: Leverages trends of storage Packetized SCSI FCP Partitioning/zoning Addresses needs of customers Connectivity Ease of adding storage Lower administrative overhead Common tools may be used (SLW)AN are all important & Data is #1 asset and must be protected Disaster recovery Mirror sites Data mi ...
... Other: Leverages trends of storage Packetized SCSI FCP Partitioning/zoning Addresses needs of customers Connectivity Ease of adding storage Lower administrative overhead Common tools may be used (SLW)AN are all important & Data is #1 asset and must be protected Disaster recovery Mirror sites Data mi ...
lesson19
... • As with the ‘extended’ receive-descriptors, it is necessary for a device-driver to setup each ‘packet-split’ receive-descriptor any time it is going to be ‘reused’, since prior buffer-addresses get overwritten during a packet-reception by the network controller • So driver needs a formula for reca ...
... • As with the ‘extended’ receive-descriptors, it is necessary for a device-driver to setup each ‘packet-split’ receive-descriptor any time it is going to be ‘reused’, since prior buffer-addresses get overwritten during a packet-reception by the network controller • So driver needs a formula for reca ...
Guide to Firewalls and Network Security with Intrusion Detection and
... TCP or UDP port number is provided only at the beginning of a packet; appears only in fragments numbered 0 Fragments numbered 1 or higher will be passed through the filter If a hacker modifies an IP header to start all fragment numbers of a packet at 1 or higher, all fragments will go through the fi ...
... TCP or UDP port number is provided only at the beginning of a packet; appears only in fragments numbered 0 Fragments numbered 1 or higher will be passed through the filter If a hacker modifies an IP header to start all fragment numbers of a packet at 1 or higher, all fragments will go through the fi ...
module_50
... Routing decision made Packet moves to output buffer Packets queued for output transmitted as fast as possible – Statistical time division multiplexing If packets arrive too fast to be routed, or to be output, buffers will fill. And packets will be discarded K. Salah ...
... Routing decision made Packet moves to output buffer Packets queued for output transmitted as fast as possible – Statistical time division multiplexing If packets arrive too fast to be routed, or to be output, buffers will fill. And packets will be discarded K. Salah ...
TCP operations
... The reliability of TCP is achieved by retransmitting data, which has been sent but not acknowledged by receiver within given time. Thus sending TCP must keep the sent data in memory until it has received the acknowledgements of sent data. TCP assumes that IP is inherently unreliable, so TCP adds ser ...
... The reliability of TCP is achieved by retransmitting data, which has been sent but not acknowledged by receiver within given time. Thus sending TCP must keep the sent data in memory until it has received the acknowledgements of sent data. TCP assumes that IP is inherently unreliable, so TCP adds ser ...
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 ...
QoS Support in 802.11 Wireless LANs
... – hard to meter out data at a fixed rate from a multitasking sender when that rate is high (Linux system time granularity: 10ms) ...
... – hard to meter out data at a fixed rate from a multitasking sender when that rate is high (Linux system time granularity: 10ms) ...
Understanding Network Performance in Extreme Congestion Scenario
... essentially the same behavior as Ether in a shared-medium network.” – Not true! ...
... essentially the same behavior as Ether in a shared-medium network.” – Not true! ...
ppt
... deployed for – Server running game server next 10 years Some have 2 – Client with wireless and wired network (multi-homed) – Router with multiple connections ...
... deployed for – Server running game server next 10 years Some have 2 – Client with wireless and wired network (multi-homed) – Router with multiple connections ...
WSDLite: A Lightweight Alternative to Windows Sockets Direct Path
... well as some programming considerations that must be addressed to use WSDP effectively. Figure 2 depicts a block diagram of the WSDP architecture. The key component of the WSDP architecture is the software switch, which is responsible for routing network operations initiated by WinSock2 API calls to ...
... well as some programming considerations that must be addressed to use WSDP effectively. Figure 2 depicts a block diagram of the WSDP architecture. The key component of the WSDP architecture is the software switch, which is responsible for routing network operations initiated by WinSock2 API calls to ...
IP Packet Switching
... –If any bits of the header are corrupted in transit –… the checksum won’t match at receiving host –Receiving host discards corrupted packets Sending host will retransmit the packet, if needed ...
... –If any bits of the header are corrupted in transit –… the checksum won’t match at receiving host –Receiving host discards corrupted packets Sending host will retransmit the packet, if needed ...
The Transport Layer: TCP and UDP
... Connection oriented = similar to telephone. Connections are also called virtual circuits. The connection oriented network layer uses connections that are known and controlled in all intermediate systems. Every packet carries a connection identifier which is either global (SNA) or local to a link (X ...
... Connection oriented = similar to telephone. Connections are also called virtual circuits. The connection oriented network layer uses connections that are known and controlled in all intermediate systems. Every packet carries a connection identifier which is either global (SNA) or local to a link (X ...
Data Logistics in Network Computing: The Logistical Session Layer
... had complete control over the UTK machines, we were able to investigate the effects of different kernel-level TCP settings. In the first test we study transfers from Argonne National Laboratory (ANL) to the University of Tennessee (UTK). To do so, we deploy an LSL daemon at Oak Ridge National Labora ...
... had complete control over the UTK machines, we were able to investigate the effects of different kernel-level TCP settings. In the first test we study transfers from Argonne National Laboratory (ANL) to the University of Tennessee (UTK). To do so, we deploy an LSL daemon at Oak Ridge National Labora ...
ECE 526
... • How is congestion control achieved? ─ Congestion window is continually increased to use available bandwidth ─ Congestion window is reduced when packet loss occurs ...
... • How is congestion control achieved? ─ Congestion window is continually increased to use available bandwidth ─ Congestion window is reduced when packet loss occurs ...
error-free
... When a packet of sequence number of flow arrives, it is tagged with virtual service start time Si,n and finish time fi,n Si,n = max{v(A(t)), fi,n-1} fi,n = Si,n + Li,n/ri Li,n : packet size of the arrived packet V(A(t)) : system virtual time defined in WFQ ri : service rate allocated to flow ...
... When a packet of sequence number of flow arrives, it is tagged with virtual service start time Si,n and finish time fi,n Si,n = max{v(A(t)), fi,n-1} fi,n = Si,n + Li,n/ri Li,n : packet size of the arrived packet V(A(t)) : system virtual time defined in WFQ ri : service rate allocated to flow ...
A method for IP multicast performance monitoring
... • … or take the timestamp of a particular packet within a block (f.i. the first packet of each block) to measure delay / jitter MBONED WG ...
... • … or take the timestamp of a particular packet within a block (f.i. the first packet of each block) to measure delay / jitter MBONED WG ...
Document
... • When the station detects and idle channel, it transmits. • If a collision occurs, the station waits a random amount of time to start all over again. ...
... • When the station detects and idle channel, it transmits. • If a collision occurs, the station waits a random amount of time to start all over again. ...
Hello, I`m Brian Farrell, and welcome to PACE
... The first networking reference model that was developed was the TCP/IP reference model. The Transmission Control Protocol/Internet Protocol reference model was published as the United States Department of Defense's standard in 1982. All of the major system manufacturers adopted the TCP/IP reference ...
... The first networking reference model that was developed was the TCP/IP reference model. The Transmission Control Protocol/Internet Protocol reference model was published as the United States Department of Defense's standard in 1982. All of the major system manufacturers adopted the TCP/IP reference ...
Chapter 5: Sample Questions, Problems and Solutions Örnek Sorular (Sample Questions):
... • What is Store-and-Forward packet switching? • What is a connectionless service? • Which is a connection-oriented service? • What are the nonadaptive routing algorithms? • What are the adaptive routing algorithms? • What is the optimality principle? • What is a sink tree? • What is the shortest pat ...
... • What is Store-and-Forward packet switching? • What is a connectionless service? • Which is a connection-oriented service? • What are the nonadaptive routing algorithms? • What are the adaptive routing algorithms? • What is the optimality principle? • What is a sink tree? • What is the shortest pat ...
Overview - Computer Science Division
... – client host requests, receives service from always-on server – e.g. Web browser/server; email client/server ...
... – client host requests, receives service from always-on server – e.g. Web browser/server; email client/server ...
Chapter 8 – TCP/IP Fundamentals
... The TCP/IP protocols were developed to support systems that use any computing platform or operating system. The TCP/IP protocol stack consists of four layers: link, internet, transport, and application. IP uses the ARP protocol to resolve IP addresses into the hardware addresses needed for data-link ...
... The TCP/IP protocols were developed to support systems that use any computing platform or operating system. The TCP/IP protocol stack consists of four layers: link, internet, transport, and application. IP uses the ARP protocol to resolve IP addresses into the hardware addresses needed for data-link ...
Computer Monitoring and Documenting
... networks with heavy traffic flow: nodes can interleave packets from endhosts and other nodes to achieve better utilization of network capacity than dedicated circuit-switched connections. Packet switch has a delay disadvantages which is added to the overall transmission line. The delay is presente ...
... networks with heavy traffic flow: nodes can interleave packets from endhosts and other nodes to achieve better utilization of network capacity than dedicated circuit-switched connections. Packet switch has a delay disadvantages which is added to the overall transmission line. The delay is presente ...
Multicast for Video Streaming
... Provides differentiation for UDP, but large ratios lead to instability No effect for TCP. Assume that AP is responsible for sending TCP-ACKs -> since senders ended up waiting for ACK from AP and there was no contention for RTS messages ...
... Provides differentiation for UDP, but large ratios lead to instability No effect for TCP. Assume that AP is responsible for sending TCP-ACKs -> since senders ended up waiting for ACK from AP and there was no contention for RTS messages ...