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about Bandwidth
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[ Revised 3/12/2008 ]
Note:
ResCom student
employees do not make the bandwidth policies. There are no appeals
on violations except for the 4th violation. This appeal is handled through your local ResLife
office.
Note: These links will show you what you agree to when you use
these programs. They cover themselves legally. Do you know what
"you" are legally agreeing to? It is interesting reading
when in the mood to research the facts: Kazaa,
Morpheus, Imesh, Audigalaxy,
DivX.
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- What is bandwidth?
- What does upload and
download mean?
- Why is Penn State
restricting the use of my network connection?
- What is being measured
or monitored?
- Is Penn State Connecting to
my computer?
- What are the bandwidth limits?
Bandwidth comparison chart
- Will Penn State considering
changing the limits?
- How can I reduce my bandwidth
consumption?
- There is no way I used 4 Gigabytes. I can't be downloading or uploading that
much. There must be something wrong with your system. Why
am I getting the emails?
- What happens if I ignore the
violation and warning notices?
- Everyone copies music and movies.
Why should I be concerned? What happens if I get
caught having or possessing copy written movies or music on my
computer?
- How can I monitor my
network usage?
- Why didn't I receive a warning before
receiving a violation notice?
- Can you tell me exactly what I uploaded
or downloaded?
- Why doesn't ResCom backup
MP3's and movies on student machines?
- Is there any way to appeal
that bandwidth limitations?
- What is the difference between Megabits
and Megabytes? What do I need to look for?
- Does downloading Morpheus
Preview Edition, the latest edition of Morpheus, have anything to
do with the email violations I have been receiving?
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Question:
What is "Bandwidth"?
Answer: Essentially, bandwidth is the size and speed of the
"pipe"
that connects your computer to a network and the Internet. This "pipe"
transports data back and forth between your computer and the Internet. You use
bandwidth to view web pages and send data out from your computer (upload) or receive
data into your computer (download).
There are limitations to how
much data can be exchanged depending on how much bandwidth is purchased. MODEMs have a much smaller
bandwidth than Ethernet connections do. The residence hall traffic is combined
with the rest of the university and together they are connected to the Internet.
The residence halls use 10 Based-T ( 10mb )
Ethernet
connections to communicate over the network and with the Internet. You can send a large picture
over the network in seconds. At home you probably use a MODEM, which
communicates over a phone line and uses a very small pipe to the Internet.
The same picture using a MODEM could take several minutes.
Compare communication speeds:
OC3: 155,000,000 bits per second (very fast)
Ethernet: 10,000,000 bits per second (network
speed)
Modem: 53,000 bits per second (typical speeds seen at home) Goto Top
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Question:
What does upload and download mean?
Answer:
Upload is defined as the process of sending data generated
"from" your computer out to another computer. It can be sent
to another computer on campus or over the Internet to another computer.
Download
is defined as the process of receiving data sent "to" your
computer from another computer. It can be sent from a computer on campus
or from through the Internet.
We are currently
monitoring the total upload and download traffic for each residence hall
student with a registered Ethernet connection. The traffic traveling
"over the Internet" is what is currently being used to
determine if a student is operating within the bandwidth restricitons.
Normal
Internet use such as web browsing, email, etc generates a very small
amount of outbound traffic. Computers
that are acting as servers and running web cam's, ftp (file transfer protocol),
Kazaa, Morpheus, Imesh, Audiogalaxy, and various game servers can generate a significant amount of
outbound traffic since others are accessing files on your computer and
transferring them via the Internet.
We are not looking at the content of data being sent—only
counting the amount.
Check your
current
bandwidth consumption.
Goto Top
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Question:
Why is Penn State restricting the use of my network connection?
Answer:
During the Spring of 2001 TNS (Telecommunications and Networking
Services) notified Housing that residence hall
students were consuming most of the "shared" bandwidth
purchased for all of Penn State University.
Housing and the Telecommunications and Networking Services worked together to implement individual bandwidth restrictions for
the residence hall population. Analysis showed the residence hall
population makes up ~12% of the total population at PSU. This 12% was regularly
consuming ~65% of the bandwidth. This was affecting Faculty, staff, administrative
personnel, and other essential equipment used by departments around
campus. Analysis showed that a very small group of
users accounted for a very large percentage of the bandwidth use.
The restrictions
imposed started by restricting the amount a student could upload (send
files from their computer) to the Internet. This resulted in a big success.
The population learned how to adjust their habits to live within the
limits. Music sharing with the world proved to be the major reason for students going over their limits. Other devices such as web cams or web phones can also
put students over the limits. A student once emailed me to tell me
that he will no
longer leave his web cam on for several days because he realized it put him over his limits.
Restrictions in the
residence halls have been implemented because the enormous bandwidth consumption, caused by the popularity of music and video sharing. The demand for bandwidth has grown
exponentially, so much that it can make it impossible to get email or do academic work
over the network. Implementing the download restrictions in Spring 2002
has reduced the residence hall demand and restored the connection speed
to a more reasonable level. These restrictions have turned out to
be extremely successful. Goto Top
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Question:
What is being measured or monitored?
Answer:
Each residence hall port is monitored for total upload and
download traffic. The
equipment has been proven to be extremely accurate. Penn State monitors totals and
"does not monitor content."
A
program runs every 8 hours that compares your totals to the current
bandwidth limits and sends appropriate email (only to their PSU email
account) if a student has gone over the limits. Each student is
responsible for anything going in and out of their port even if your
roommate uses your computer or your computer gets infected with a virus.
University policy AD-20 states students must be in control of their
computer at all times. The student owns the computer needs to protect it
from viruses. CAC is supplying students with a FREE Norton
anti-virus program to stay virus free. It is up to the student to load
on their computer. ResCom or Residential computing woud be happy to help
any resident hall student install the software.
Check
your current
bandwidth consumption.
Goto Top
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Question:
Is Penn State connecting to my computer?
Answer: NO.
This data is collected at the infrastructure (equipment) level.
Bandwidth usage is automatically collected as your data
is passed to and from the Internet. No connection is ever made directly to
your computer to determine your bandwidth usage.
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Question:
What are the limits?
Answer:
The current limit is 4 gigabytes of
information uploaded (data sent out to) or downloaded (received data
from) over the Internet per week. This does
not include local network traffic on campus as long as the entire path remains
within the psu.edu domain.
TNS has imposed a
20 mbps (mega bits per second) cap on "Internet" traffic between
the hours of 8am and 7pm Monday through Friday. After 7pm the bandwidth is
opened to 50mbs. Bits need to be converted to Bytes, then to Giga bytes
before comparing to the current bandwidth limits.
As you use the Internet your traffic is
being totaled. 3 times per day your totals are reported to a program and
compared to the current bandwidth limits. At that time the program
determines if any action needs to be taken for your port. If you are
between 60and 99.9% of the bandwidth, it will send you a warning. If
your computer is always on and is consuming bandwidth while you are
sleeping, the next time the program runs you could receive a violation
notice. Please take warnings seriously. You may receive several warnings
during the week.
If the program determines you have gone over
the limits, it will issue a violation notice and change your connection
speed to a "shared 56K" limit for the rest of the week. For the first 2
violations your connection speed will be restored to normal early Sunday
morning. Once a student receives a 3rd violation the student will remain
at the reduced speed for the remainder of the semester. There is no way
to get this reversed so be careful not to violate the third time.
It is possible that a student could go over
the limits a 4th time and if this happens the students residence hall
connection is turned off all together. This can be appealed but is
rarely reversed.
Check
your current
bandwidth consumption.
Goto Top
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How much is
4 Gigabytes? |
4,000,000,000 |
4 billion
characters |
| File Type |
Average Bytes |
Number of files
to equal 4 Gigabytes |
Single page text
email message
1 page text Excel Spreadsheet
Low resolution photograph/graphic jpeg file
20 page text Word Document
High resolution photograph/graphic jpeg file
MP3 music file
60 second video clip
Internet Explorer software installation (typical)
Full length DVD movie |
2,000
25,500
100,000
130,000
2,500,000
5,000,000
10,000,000
17,000,000
2,500,000,000 |
2,000,000
156,863
40,000
30,769
1600
800
400
235
1.60 |
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Note: File sizes
above are estimates. Actual size can vary based on a variety
of factors
including resolution, sampling quality, and compression. |
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Question:
Will Penn State consider changing the limit?
Answer:
The initial limit was created as a short-term solution. Until
hubs in the residence halls have been updated to switches and demand has
been reduced, these restrictions will remain in place. These
restrictions were imposed to deal
with a problem that affected all students, faculty, and staff at
Penn State. Housing and
Residence Life worked together on a formal policy to govern and
monitor residence hall network bandwidth usage.
Staff from these units consulted with the Association of
Residence Hall Students (ARHS) and the Commonwealth Council of Student
Government (CCSG) in the development of this policy. Goto Top
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Question:
How can I reduce my bandwidth
consumption?
Answer:
The biggest users of bandwidth have proven to be audio and video sharing
programs. Programs like
Morpheus, Kazaa, Gnutella, and
Audiogalaxy, to name a
few are bandwidth hogs. We suggest you limit the use of web cams and web phones.
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Disable all music
sharing and shut down file
shares. By default, most music
programs allow unlimited users to connect to your
computer to copy your music. Every file they copy from or through your
computer counts against your
bandwidth limits. There is often more than one place to disable
sharing features. Some music and video sharing programs does not
allow you to disable the "super node" type of feature. The only
answer in this case is to uninstall that program so it does not
continue to use bandwidth without your knowledge.
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Turn off the
super node capability in Kazaa. Go to the options of the program
and put in a check where it says "Do not use my computer as a super
node". The new Morpheus uses the same engine as Gnutella,
Bearshare and Limewire. These programs do not allow you to turn off
the super node feature and will consume bandwidth while your
computer is on the network. Even when you close the application the
program is still available to others on the network until you turn
off that feature. If you see the programs icon on the bottom right
hand corner, right click on it and turn it off.
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Turn off your
computer when you are not in the room with your computer and
when you are sleeping. Remember, you are responsible for all traffic
going in and out of your computer. Before loading programs on your
computer ask ResCom if that program has bandwidth considerations and
how you can configure it properly.
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Choose not to
send files through AOL Instant Messenger. Any file you send
through AOL IM uses Internet bandwidth even if you are sending a
file to your room mate or person down the hall. Network Neighborhood
and file sharing is not supported in the residence halls because it
spreads viruses and allows students to exchange copy written
materials.
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Make sure your
computer is not infected by a virus that allows others remote
access to your computer without your knowledge. Viruses also email
itself out to others and if you are using a non-PSU email account,
it will also count against your bandwidth limits. PSU has FREE Norton
anti-virus software available for all PSU students. It does not
expire and is set to automatically update its definition
files on a weekly basis. This helps to keep your computer free from
viruses.
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Do not run any type of
Web Server (e.q. Microsoft's Internet Information Service/Personal Web
Server) or FTP server, which would allow other people to download files
from your computer.
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Consider installing a firewall. A
firewall is basically what it sounds like - it acts as a filter for information
coming in and out of your computer. It is a tool that gives you
control over what programs are allowed to use the Internet.
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Use the PSU email
servers to send and receive your email. If you do not use a PSU email server,
all email traffic will
count against your bandwidth limits. Popular programs like AOL, Hotmail
and Yahoo all require you to communicate over the Internet. We recommend
you use PSU email or PSU Web mail because they do not effect your bandwidth limits.
The PSU WebMail address is: webmail.psu.edu.
You can use this from any browser connected to the
Internet.
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AOL, Hotmail and Yahoo users
should forward their email (if possible) to their PSU email account and avoid the
bandwidth restrictions. If you listen to radio stations over the
Internet it will count against your limits.
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Uninstall
unnecessary protocols that might be loaded in your network
neighborhood. Remove the IPX/SPX or NETBOUI protocols. The only
protocol you should be using is TCP/IP. Network Neighborhood is not
supported in the residence halls.
Windows 98 or
ME:
A) Right click
"network neighborhood" on the desktop, click properties
B) About 1/3 of the way down, you will see a list of network
components.
C) This list may contain various components, but should not contain
anything called IPX/SPX.
If it does:
a) Click the IPX/SPX
item
b) Click the "Remove" button below this.
In Windows 2000:
A) Right click
"network neighborhood" on the desktop, click properties
B) Right click "Local Area Connection". click
properties
C) About 1/2 of the way down, you'll see a list of network components
D) This list may contain various components, but should not contain
anything called IPX/SPX.
If it does:
a) Click the
IPX/SPX item
b) Click the "Remove" button below this.
Goto Top
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Question:
There is no way I used 4 Gigabytes.
I can't be downloading or uploading that much. There must be
something wrong with your system.
Why am I getting the emails?
Answer:
The equipment that monitors and reports your totals is extremely
accurate.
Check your
current
bandwidth consumption.
The traffic is totaled at the point your traffic is put onto
or received from the Internet. It commonly maintains totals for almost
16,000 students during a typical semester. If you received a warning or
violation notice then it is because you have indeed gone over the
limits.
There are many reasons
this can happen. Most of the time it is because a student has "chosen"
to install a music / video sharing program and did not find all the
places to disable sharing. There are programs that you can not turn off
super node type of sharing and simply need to be uninstalled. This
responsibility is solely on the residence hall student.
Another common reason
this can happen is a resident hall student will allow or "not" allow
another student to use or configure their computer. Allowing another
student to use your computer is your "choice", however it needs to be
understood that you are 100% responsible for all traffic generated
through your port. There are no exceptions.
Some students have
reported that a room mate has used their computer without their
knowledge. It is the students responsibility to secure their computer
from unauthorized use. Loading a secure operating system like Windows NT
or XP is recommended. It is university policy that you do not share your
passwords with others.
Many students have gone
over their limits because they use AOL IM to transfer files. This
requires you to go out of the PSU network and communicate over the
Internet. We do not recommend that you regularly use AOL IM to transfer
files. Use it at your own risk because your traffic is being totaled and
reported every 8 hours.
Please do not assume you know why you received a violation or warning
notice. Ask questions right away to prevent other violations. These
violations can not be reversed. You may have downloaded a lot, however
you may also have installed a program that needs to be configured
properly. You may not know about it till your next violation occurs and
it may be too late. ResCom or your local Residential Computing office
will be happy to review any questions you have about the subject.
Please read the
answers to the question "How can I reduce my bandwidth
consumption". This will help every residence hall student.
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Question:
What happens if I ignore the violation or warning notices?
Answer:
If you ignore the violation and warning notices it will lead to losing
your connection all together. Every violation and warning is a serious
matter. ResCom recommends you ask questions to make sure you are know
what caused you to go over.
Many students know they downloaded a lot the last couple days but do not
realize they also loaded a program that uses bandwidth even if they
stopped downloading. Thinking they will be alright because they stopped
knowingly consuming bandwidth. Even if you stopped some programs
advertise to others your connection is available for them to use. As
they use your connection your totals go up.
No
one wants to see students get restricted. The restrictions are strictly
enforced. Many documents have been created to educate the students on
how to configure their computer and how to avoid consuming so much
bandwidth. All residence hall students need to realize that all the
choices and responsibility is their hands. You choose what programs you
load on your computer. The limits have been set so the rest is up to
you. You are not banned from loading certian programs on your computer
and you are not banned from going to any web sites. You are however
responsible to stay within the bandwidth limits. It is easy to do if you
do a little homework to properly configure your computer.
ResCom will gladly provide information about new programs as the team
learns how they affect the student population. However the
responsibility to stay within the limits remains the students
responsibility.
Goto Top
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Question:
Everyone copies music and movies. Why should I be
concerned? What happens if I get caught having or possessing copy
written movies or music on my computer?
Answer:
There are Federal and State laws that prohibit uploading and downloading of
copy written music
and especially movies. Students take all the risk for this practice on
PSU networks. It is against University policy to transfer copy written material over PSU networks without express written permission of
the materials owners. If you are interested in more information about the;
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Question:
How can I monitor my network usage?
Answer:
There are several personal firewall products and other utility
programs on the market that can help you measure total bandwidth used but there
are no programs that just distinguish your Internet traffic. Your
Internet traffic totals is what determines if you violate the
restrictions. Housing is working to produce an automated web based
process to
show usage totals to the residence hall students after each process is
run. This data will be updated every 8 hours.
This will be released as soon as it is possible.
Goto
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Question:
Why didn't I receive a warning before
receiving a violation notice?
Answer:
It is possible that you used more than the bandwidth limit within an 8
hour period. When the process runs it will see that you have passed the
limits and will send you a violation notice. You will only receive a
warning notice only if you were determined to be within 60 and 99.9% of
the limits when the program compares your totals. It does not send you a
warning as soon as you reach 60%, the program determines if email needs
to be sent when the program compares your totals. If you were close to
the limits when the program checked your totals you could already be
over your limits when you check your email. The best thing to do is turn
off your computer when you are not using it.
The
system now allows the students to check their
current
bandwidth consumption.
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Question:
Can you tell me exactly what I uploaded or downloaded?
Answer:
We are not looking at the content being sent--only the
amount you sent or received over the Internet. You can,
however, check your
current bandwidth consumption.
Goto
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Question:
Why doesn't ResCom backup MP3's and movies on student machines?
Answer:
ResCom has taken the stand that we will not illegally copy any copy
written materials such as music and movies. Odds are the music and movie
clips ARE copy written so ResCom will not backup music or movies files.
All backup of data is the responsibility of the student. In some cases
we will backup student data during a reformat but will always exclude
music and movies. We prefer the student to backup their own data because
we are not responsible for loosing any student data.
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Question:
Is there any way to appeal the bandwidth limits?
Answer:
ResCom employees do not make policy or deal with appeals. There are
no appeals for any violation except the 4th violation. Violations are
not reversed for any reason so please be careful not to go over the
limits. You can check your current bandwidth consumption (as of the last
program count which happens once about every 8 hours) HERE.
ResLife will forward 4th time violators on to management. Only
extreme circumstances will be considered. Not knowing the policies or
what programs consume bandwidth on your computer is not grounds for
appeal. Students need to realize there are consequences to their
behavior. Our recommendation is to do a little homework to learn what
you need to know. ResCom will be glad to answer questions for any
student wanting to try and stay within the limits. Please remember you
own the computer and you are in charge of your computer.
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Question:
What is the difference between Megabits and Megabytes? What do I
need to look for?
Answer:
Megabits can be looked at like the letters of the alphabet. Megabytes
can be looked at like words made up of the letters of the alphabet.
Megabytes are made up of megabits. There is a formula to convert bits to
bytes. People need to know what they are looking at, bits or bytes.
Letters or words.
Goto
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Question:
Does
downloading Morpheus Preview Edition, the latest edition of Morpheus, have
anything to do with the email violations I have been receiving?
Answer: Yes!
Morpheus Preview Edition works using a Supernode concept. This
means that the program allows other computer users to upload files off
of your computer while using your share of bandwidth. Because
of the large number of files that can be uploaded at one time, it
is possible to exceed the bandwidth limits within an 8 hour period, and be
restricted to 56 kbs even though you are not actually downloading
anything.
The previous edition of
Morpheus allowed users to change their settings so that their computer
would not be used as a Supernode. This edition of Morpheus has no
such settings, and will automatically operate as one.
We recommend that you close
this program whenever you are not using it (this includes making sure
the program is not present in the system tray beside the clock. By
allowing it to remain there will allow other users to use your share of
bandwidth).
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