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Management information system feacture
Management information system feacture
Management information system feacture
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MANAGEMENT INFORMATION SYSTEMS OMIS 660 FALL 2015 Instructor – Dr. Yipeng Liu LAB 1 – TCP: TRANSMISSION CONTROL PROTOCOL Submitted by: Submission Date: 09-25-2015 Divya Malika Vandana Z1776136 Divya Reddy Chandupatla Z1768598 SUMMARY In this lab, we used Transmission Control Protocol (TCP) which is a connection oriented protocol, to demonstrate congestion control algorithms. As the name itself describes, these algorithms are used to avoid network congestion. The algorithms were implemented in three different scenarios i.e. No Drop Scenario, Drop_Fast Scenario and Drop_NoFast Scenario. …show more content…
According to the manual, we chose USA from the map list and created a network. • As shown in the picture below, we added Application config, Profile config, ip32_Cloud and two subnets into the project workspace. • The next step is to set the names of the devices on the network and edit their attributes. • For the Application config, the name is set to APPLICATIONS. The attributes are edited as shown in the picture below. Here, the number of rows of Applicaion definition is set to 1 since we are using a single application i.e. FTP. The name of application is given as FTP_Application. In the description of FTP inter request time, the time taken to transfer the file, is set to constant (3600) and the File size is set to constant (10000000) which is 10MB. • For the Profile config, the name is set to PROFILES and the attributes are edited as shown in the picture below. Here, the number of rows for profile config is set to 1 and the name is given as FTP_Profile. • For the west subnet, one ethernet_server and one ethernet4_slip8_gtwy router are connected with a bidirectional 100 BaseT link. The attributes of the server are shown in the picture …show more content…
3. DROP FAST SCENARIO For Drop_Fast scenario, we change the flavour of the TCP Properties to Reno for fast recovery and fast retransmit mechanism. When there is loss of packet, the sender doesn’t wait for the time out and resends the packets immediately using the mechanism of fast recovery and fast retransmit. Analysing the graph, since there are loss of packets and retransmission, the congestion window size graph fluctuates by increasing and decreasing very frequently. 4. COMPARISION OF THE THREE SCENARIOS The graph shows comparison of the three scenarios for sent segment sequence number. The green curve represents No_Drop scenario where it shoots up as it is a perfect scenario where there is no loss of packets. Whereas the blue curve which representd Drop_Fast Scenario increases exponentially because there is loss of packets and retransmission takes place.
rapidly chooses how to convey the set of uses and framework servers over different machines in the cloud. Large portions of the conventional parallel applications for the most part utilize an altered number of strings on the other hand procedures characterized as a parameter toward the begin of the application. The choice for the number of strings is frequently chosen by the client in a push to completely use the parallel assets of the framework or to take care of top demand of a specific administration. fos utilizes the duplicated server model which permits extra transforming units to be alterably included amid runtime permitting the framework to attain a finer use for element workloads and lightening the client from such
The routing protocols for UWSNs can be categorized into two classes according to the number of the sinks,which is the destination and the final
If the network is badly congested than the ACK for the combined set of packets can be delayed. As the source using the Nagle algorithm awaits the ACK it can introduce an inadvertent additional latency (Wikipedia,
...a flood of packets. Therefore, the victim node or sometimes the whole network can get easily paralyzed [24].
End to end delay = transmission delay of all the 3 links + propagation delays of all the 3 links + switch process delay
...ch an attacker resends valid frames that the attacker has intercepted in the middle of forwarding.
The Unistep IRP Elexol EtherIO 24 Module is a network board that is integrated with features that allow multiple devices over the same network to communicate. This microcontroller was designed to be implemented as an addition to a larger network system; the multiple features and capabilities allow for various industrial and home applications. Ethernet is very common and used in most networks, which makes the IRP a great candidate for networking problems both at home and in the work field.
• Host—Sends and/or receives bundles, but does not forward them. A host can be a source or destination of a bundle transfer. The bundle layers of hosts that operate over long-delay links require persistent storage in which to queue bundles until outbound links are available. Hosts may optionally support c...
In a computer network, switches are devices that are used to connect devices together. Multiple cables can be connected to a switch to enable networked devices to communicate with each other. The role of a switch is to manage the flow of data throughout a network and this process is effective in its role due to the fact that the messages are sent only to the intended target. The media access control (MAC) is the identification that each device connected to the switch carries. By each device having individual IDs this increases the overall effectiveness and security of a network.
Next, the writer goes over the second type of network architecture - the TCP/IP reference model, the granddaddy of the wide area computer network. This architecture allows the connection of multiple networks seamlessly. The architecture is flexible and capable of running even if some of the subnet hardware is destroyed or non-functional as long as the source and destination machines are functioning. In a similar fashion to the OSI model, the TCP/IP model has layers as well. In this case, we have four layers: the link
Congestion control involves reduced sending of packet data because of avoiding overflow and lack of resources.
3. Copy over the wattcp.cfg file to the disk and change the IP Address, Subnet Mask and Gateway according to network. (A special IP Address should be allocated for the Server PC)
The set standards and mechanisms for enabling high quality performance for applications are known as quality of service routing. Its main goal is to provide special service for applications that need it by making sure the required bandwidth is provided, controlling latency and making sure the loss of data is reduced. Some of its useful features are:
Asynchronous serial transmission is a technique used in serial RS232 communication. The data is framed by a series of control bits known as the start bit, stop bit(s), parity bits and error checking bits. A transmit clock signal is used to clock the data over the transmission line to the receiving end. At the receiver, a clock signal, known as the receive clock, which corresponds to the transmit clock is used to decode the transmitted data back to the original by stripping off the control bits.
People need to know what a word means when they see it. In the appendix are a few terms that will be in this paper as well as several other important ones. After you are familiar with these terms we will proceed to discuss the history of networking. Explanations will be provided on how networking came about and who was the first to experiment with it. Also, some statistics about the Internet and its growth will be discussed. In the 1950s, there was no interaction between the users and their programs while they were running on the computers. No direct communications were involved. Jobs were brought to the machine to be run in a batch. (Jones, 2001, Personal Computers History and Development)