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Bandwidth Problems

What is bandwidth

Bandwidth refers to the data transfer rate within a band of frequencies or wavelengths in a computer network. In other words, it is mainly the volume of data per second an internet connection can handle. The speed/rate of bandwidth is gauged in terms of bits per second (bps). An internet connection with a larger bandwidth can move/download/share larger amount of data in less time than an internet connection with a relatively lower bandwidth. System or network failure and a significant drop in the signal strength can hamper the bandwidth rate. Bandwidth rate/speed provided by the internet service provider can be checked by running a test against a close by server by logging in to www.speedtest.net. Listed below are some relevant answers provided by Experts on bandwidth and its related problems

I need larger bandwidth. What should I opt between switched network and hub network?

A switched network provides more bandwidth as it is capable of sending or receiving information at the same time. Whereas a hub network just acts like a repeater and cannot send or receive data at the same time. Another reason of switched network’s efficiency is that it identifies the intended recipient/computers of the data it receives/transmits. Whereas, a hub network slows down the bandwidth speed as it does not recognize the intended destination of the data it receives and ends up sending it to all the computers connected to its network, thus leading to the network congestion. So, it is usually better to go for a switched network for larger bandwidth.

What are the best routers that can increase the bandwidth of my internet connection?

Basically, it all depends on the speed at which it comes from the internet service providers and personal choice. However, you can opt for some high end routers like N300 or N600 from Netgear which would increase the bandwidth reach up to 150 to 200 feet. Or you can also look for routers of other brands identified as ‘802.11b’ or ‘802/11g’ category. In addition to this, you can always check your network adapter in your computer in another network if you experience a significant fall in your bandwidth. Finding the best router is often a choice or a preference.

How do I restrict the bandwidth usage for the guest network using my Apple Airport Extreme Router? I have Comcast Cable broadband connection with a 20MB down and 500kb up speed.

With an apple airport extreme router, you cannot do the multicast rate setting as it would affect the entire base station instead of a particular network; in your case it is the guest network. To deal with this, you can set the specific channel used by the guest network to "b" only or "g" only or "n" only (2.4GHz) or a "b/g" network. This procedure will limit the bandwidth usage in the guest network to some extent. However, to have full control over bandwidth allocation to several networks, you should go for routers like E3200 or E4200 of Linksys.

How to calculate the bandwidth requirement for an hour long live event which is streamed over internet with an encoding rate of 22 kbps for 1500 total and 1200 concurrent listeners?

In this case, the encoding rate of 22kbps is the bandwidth rate which a single stream needs. To calculate the required kilobits of bandwidth in this case, you have to multiply that with the number of concurrent listeners. Then divide the result (kbps) by 1000 to convert the same into mbps.

How to limit the bandwidth to a computer connected wirelessly as it slows down the speed and I am not able to get right speed when that particular computer is in use. The router in use is a WRT 54GL v1.1 Linksys.

Most probably, the other computer is used to download applications or games of high volume and that is why is slows down the bandwidth to your computer. To resolve this issue, you have to have both the MAC addresses; the target computer and your computer. Then log into the router webpage (http://192.168.1.1/) using your computer. Go to the ‘status’ tab and select ‘local network’. Now click on the button to view Dynamic Host Configuration Protocol (DHCP) lease to find out the target computer’s name from where you can extract its MAC address. The next step is to enable the Quality of Service (QoS) by clicking on ‘application and gaming tab’. Then set your MAC address as high priority and the other one as low priority and save the changes. Next time onwards, your computer will have greater bandwidth.

Bandwidth rate/speed always depends on the internet service provider. You have to have larger bandwidth to share/download/stream files of higher volumes at a faster rate. Any other software or devices like router and firewalls etc between the modem and your computer could slow down the bandwidth. This apart, multiple computers downloading large files also eat up the bandwidth. However, one should always seek an Expert’s advice to handle such issues.
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Recent Bandwidth Questions

  • Im just looking for weeks 1-2 right now (phase1) is this something

    Im just looking for weeks 1-2 right now (phase1) is this something you think you could do, I don't need it till next sun the 18th

    Assignment Background Information

    DeVry University has decided to enhance security by installing high-definition IP cameras throughout its campus network. After evaluating different products, the Cisco 4300 Video Surveillance camera was chosen as DeVry’s standard.
    DeVry recognizes that the additional camera traffic, along with its management, will require a major upgrade to the network infrastructure. A phased project was created to enable NETW206 students to design and implement the network infrastructure within a single session. The four project phases are:
    1. Phase 1 (Weeks 1 - 2): Design Network Switching Infrastructure
    2. Phase 2 (Week 3): Standardize Network Configurations
    3. Phase 3 (Week 5): Network Assessment
    4. Phase 4 (Week 7): Extending the Network

    Phase 1 Assignment

    As the network engineer, you have been asked to design the new network switching infrastructure that fully supports both the existing data traffic and the additional camera traffic according to the following requirements.
    Design Requirements

    Your network design should address each of the following requirements:
    1. Must comply with the Cisco hierarchical design model;
    2. Must provide physical, as well as logical, redundancy;
    3. Must integrate 1Gb or higher uplinks;
    4. Must segment camera IP traffic from the existing network for security reasons;
    5. Must support a minimum of 150 cameras and provide connectivity for 120 existing users, printers and servers that will be segmented into 4 departments/workgroups. Plan for 20% future expansion;
    6. Must utilize PoE for cameras to avoid the use of power bricks or power injectors;
    7. Must provide sufficient bandwidth for full HD support and support existing data usage;
    8. Must minimize rack space.

    You are required to prepare a detailed network report with network topology diagram for your manager at the next scheduled meeting.
    Your report should:
    1. Thoroughly describe how your network design supports each of the requirements above to enable DeVry to take full advantage of the Cisco 4300 IP cameras.
    2. Describe how your switch selections satisfy the bandwidth requirements.
    3. A rudimentary topology diagram showing the distribution of users and cameras at the access layer. You don’t need to place an icon for every device in your diagram. Merely indicate the number of devices attached to each switch. As you progress through the course and become more familiar with the detailed operation of switching devices you may need to make modifications to your design. Do not be overly concerned with being absolutely precise at this point.
    4. Indicate your choice of distribution layer and core layer devices. Do the best you can in justifying your device selections. Again, you made need to tweak you choices in the coming weeks.

    The following websites are available to assist in your research and design for this project. The first link below is an excellent article that discusses the design and implementation of a campus wide network in explicit detail. I highly recommend it!
    The second link is the data sheet for the required cameras. It will provide you with all of the information that you will need to integrate the cameras into your network.
    The third link will provide information pertaining to bandwidth usage by the cameras.
    Remember, there is no single correct solution to this assignment.
    Design: www.cisco.com/en/US/docs/solutions/Enterprise/Campus/HA_campus_DG/hacampusdg.html
    Camera: www.cisco.com/en/US/prod/collateral/vpndevc/ps6918/ps9692/ps9716/data_sheet_c78-492032.html
    Video Bandwidth: http://www.cisco.com/en/US/docs/solutions/Enterprise/Video/IPVS/IPVS_DG/IPVSchap4.html
  • The cable company says the distance of our house from the street

    The cable company says the distance of our house from the street (about 250 feet) makes it impossible to get reception for internet.

    My question is this; if we can get reception/connectivity at, say, 100 feet from the street, could I build and wire a shed to house the cable installation, install a wireless router in the shed and with a wifi booster or extender(s) get coverage at the house?

    Our only other options are satellite or cellular aircard, with very limited speed and bandwidth, so I'm willing to invest a good bit to get decent speed and bandwidth.
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    You have been hired by Shiv LLC as an Information Technology consultant to develop a technology proposal. Shiv LLC manufactures and distributes solar panel for the consumer market. Your job is to submit a proposal that meets their criteria.

    Current Implementation/Concerns:

    The company will have 3 locations (Los Angeles, Dallas, and Houston) but are planning to grow rapidly due to high demand in solar panels. Main staff will be at Dallas and Houston offices.
    Data security is priority since patent and trademarks are at stake.
    Los Angeles sales personnel will need secure remote access to Houston office.
    The WAN connectivity is in place and it is not an issue. There is ample bandwidth in place.
    Feel free to make other assumptions but they need to be noted in the paper.


    Topic to Cover:

    Your document should cover the content presented in the course. The outline below contains recommended points to cover. You are free to add other related information.

    Describe the technical and business reasons for each choice, citing other resources as appropriate. The Windows Server 2012 operating system should be used for all aspects of the solution.

    The topics include:



    Active Directory:

    What forest/domain model should Shiv LLC implement? What is the domain name?
    Where should the domain controllers be place? Should RODC be part of the consideration?
    FSMO Roles placement
    Plan for AD backup and recovery


    Group Policy:

    Is Group Policy needed?
    What settings might be considered via Group Policy?


    DNS:

    What namespace should Shiv LLC implement?
    What types of zones needed?


    File Services:

    How will the shares be secured?
    Will quotas be used? FSRM be configured?
    Will DFS be implemented?


    Remote Services:

    What technology will be implemented to provide secure remote access for users?
    Who should have remote access?


    WSUS:

    How will the servers and clients be updated?
    How will new servers be deployed?






    Submission Requirements:



    There are specific requirements for the assignment: The final submission should contain at least 6 pages’ worth of text written by the student (not counting title page, images, diagrams, tables, or quotations), but may be longer, not to exceed approximately 10 pages’ worth of student-supplied text. (With the required diagram, and other images, title page, etc., the final submission may end up being more than 10 pages in length.) It must be double-spaced, have 1-inch margins, and use 12-point Times New Roman or 10-point Arial/Helvetica font. A title page is required; APA format for the title page is optional.



    At least one diagram must be included (not counted towards the minimum length described above). You can have more.
    The submission must cover all of the 6 major topics outlined above. Each choice should be explained with technical and business reasoning. The solution should be reasonably detailed.
    The structure of the final submission is flexible. There is no specific format required, although it should be organized logically and represent a single, unified solution. It is likely that the format will include separate sections for each of the 6 topics required, as well as a summary.
    At least one non-textbook, non-Wikipedia reference is required; preferably, this would be a “best practice” guide or similar content from Microsoft or an experienced provider of Microsoft solutions.
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