Computer Networks (COMP2322) Assignment Four (95 marks in
... (c) [5 marks] Explain your answers for the destinations 131.10.128.0 and 131.10.0.0. (d) [5 marks] If you would like to add another subnet 131.10.127.0 to the network, where shall this subnet be located, and why? 2. [20 marks] Consider the following real network. A new network segment, to which SUNB ...
... (c) [5 marks] Explain your answers for the destinations 131.10.128.0 and 131.10.0.0. (d) [5 marks] If you would like to add another subnet 131.10.127.0 to the network, where shall this subnet be located, and why? 2. [20 marks] Consider the following real network. A new network segment, to which SUNB ...
TCP Traffic Control
... acknowledgements and retransmission on acknowledgement timeout There is no explicit negative acknowledgement (NAK-less) Retransmission required when: ...
... acknowledgements and retransmission on acknowledgement timeout There is no explicit negative acknowledgement (NAK-less) Retransmission required when: ...
Using TCP Accelerator over BGAN
... separately, controlling the flow of data on the link over which it is operating. It has separate built-in algorithms, which optimize performance for normal terrestrial links or high-delay, satellite/wireless links. ...
... separately, controlling the flow of data on the link over which it is operating. It has separate built-in algorithms, which optimize performance for normal terrestrial links or high-delay, satellite/wireless links. ...
Document
... • Credit based: such as a buffer size – Indicates how many packets source may send – Common for end to end flow control ...
... • Credit based: such as a buffer size – Indicates how many packets source may send – Common for end to end flow control ...
Networking
... If some other interface is transmitting there will be a signal on the channel, which is called the carrier. All other interfaces must wait until carrier ceases before trying to transmit, and this process is called Carrier Sense ...
... If some other interface is transmitting there will be a signal on the channel, which is called the carrier. All other interfaces must wait until carrier ceases before trying to transmit, and this process is called Carrier Sense ...
Transport Layer protocols
... Æ effective throughput only 267 kbps over 1 Gbps link ¾ network protocol limits use of physical resources a lot! Æ ...
... Æ effective throughput only 267 kbps over 1 Gbps link ¾ network protocol limits use of physical resources a lot! Æ ...
slides ppt
... particle-level rules of motion • Macroscopic: Ohm’s law and Kirchhoff’s laws • Teleological: Iij are such as to minimize heat dissipation minimize ½ i,j Iij2 rij over Iij ...
... particle-level rules of motion • Macroscopic: Ohm’s law and Kirchhoff’s laws • Teleological: Iij are such as to minimize heat dissipation minimize ½ i,j Iij2 rij over Iij ...
Lecture Slides - Stony Brook University
... NetStumbler: show all WiFi networks RF monitoring systems Wireless IDS/IPS ...
... NetStumbler: show all WiFi networks RF monitoring systems Wireless IDS/IPS ...
spoofed IP packets
... ACK number responds with SYN-ACK packet w/ initial “random” sequence number Sets window size to zero waits for ACK packet from client with matching sequence number ...
... ACK number responds with SYN-ACK packet w/ initial “random” sequence number Sets window size to zero waits for ACK packet from client with matching sequence number ...
ppt
... separating TCP and IP Provide datagram abstraction: lower common denominator on which other services can be built - service differentiation was considered (remember ToS?), but this has never happened on the large scale (Why?) ...
... separating TCP and IP Provide datagram abstraction: lower common denominator on which other services can be built - service differentiation was considered (remember ToS?), but this has never happened on the large scale (Why?) ...
Chapter One
... Simple Mail Transfer Protocol (SMTP) is responsible for moving messages from one e-mail server to another, using the Internet and other TCP/IPbased networks Simple Network Management Protocol (SNMP) manages devices on a TCP/IP network ...
... Simple Mail Transfer Protocol (SMTP) is responsible for moving messages from one e-mail server to another, using the Internet and other TCP/IPbased networks Simple Network Management Protocol (SNMP) manages devices on a TCP/IP network ...
aasg3_1
... A port is a number between 1 and 65535. Port numbers in TCP/IP systems are 16-bit numbers. Port numbers below 1024 are reserved for predefined services. Client port numbers are allocated by the host OS to something not in use, while server port numbers are specified by the programmer, and are used t ...
... A port is a number between 1 and 65535. Port numbers in TCP/IP systems are 16-bit numbers. Port numbers below 1024 are reserved for predefined services. Client port numbers are allocated by the host OS to something not in use, while server port numbers are specified by the programmer, and are used t ...
Document
... Congestion avoidance After 3 dup ACKs: CongWin is cut in half window then grows linearly But after timeout event: CongWin instead set to 1 MSS; window then grows exponentially to a threshold, then grows linearly ...
... Congestion avoidance After 3 dup ACKs: CongWin is cut in half window then grows linearly But after timeout event: CongWin instead set to 1 MSS; window then grows exponentially to a threshold, then grows linearly ...
VB Lecture 1 - American University of Beirut
... Paul Baran compared three network architectures: – The centralized network, where all hosts are directly connected to a central unit. – The decentralized network, with several super-nodes, each taking care of a few hosts. – The distributed network, where there would be NO central authority. All node ...
... Paul Baran compared three network architectures: – The centralized network, where all hosts are directly connected to a central unit. – The decentralized network, with several super-nodes, each taking care of a few hosts. – The distributed network, where there would be NO central authority. All node ...
CS514-lec
... using them. Each request is self-contained and treated independently of all others. – Cookies don’t count: they sit on your machine – And the database of account info doesn’t count either… this is “ancient” history, nothing recent ...
... using them. Each request is self-contained and treated independently of all others. – Cookies don’t count: they sit on your machine – And the database of account info doesn’t count either… this is “ancient” history, nothing recent ...
9-0 Internet Protocol Attacks and some Defenses
... that request comes from an authorized host • No authentication for DNS responses and typically no ...
... that request comes from an authorized host • No authentication for DNS responses and typically no ...
Slides Topic 3
... •Sockets - is a name given to the package of subroutines that provide access to TCP/IP on most systems. ...
... •Sockets - is a name given to the package of subroutines that provide access to TCP/IP on most systems. ...
LAN / WAN / Extranet และ Network Topology แบบต่าง ๆ
... Two protocol standards are well-known: – TCP/IP: widely implemented – OSI: well-known, less used, still useful for ...
... Two protocol standards are well-known: – TCP/IP: widely implemented – OSI: well-known, less used, still useful for ...
CSE524: Lecture 2
... – Host-to-Host protocol standard for two ends to talk to each other – NCP (Network Control Protocol) defined (Dec. 1970) – Precursor to TCP – Deployed from 1971-1972 – Allows applications to be developed on top of network ...
... – Host-to-Host protocol standard for two ends to talk to each other – NCP (Network Control Protocol) defined (Dec. 1970) – Precursor to TCP – Deployed from 1971-1972 – Allows applications to be developed on top of network ...
Chapter 2 Protocols and Architecture
... • A theoretical system delivered too late! • TCP/IP is the de facto standard ...
... • A theoretical system delivered too late! • TCP/IP is the de facto standard ...
B227_2001_ASS2SOLUTIONS
... segments. Bridges operate in the data-link layer and therefore only understand MAC addresses, not IP addresses. Bridges are store and forward devices, when a packet arrives its address is examined, it is regenerated at full strength and forwarded to the correct segment. Any lost packets are retransm ...
... segments. Bridges operate in the data-link layer and therefore only understand MAC addresses, not IP addresses. Bridges are store and forward devices, when a packet arrives its address is examined, it is regenerated at full strength and forwarded to the correct segment. Any lost packets are retransm ...
William Stallings Data and Computer Communications
... Operates between the same layer on two systems May involve different operating system Protocol specification must be precise Format of data units Semantics of all fields allowable sequence of PCUs ...
... Operates between the same layer on two systems May involve different operating system Protocol specification must be precise Format of data units Semantics of all fields allowable sequence of PCUs ...