Communications Service Network
CSN

Bandwidth Management

The university's telecommunications network accommodates several thousand users on and off campus. The network is constantly monitored to track network traffic volume, and adjustments are periodically made to maximize performance. Individuals operating computers that consume an excessive amount of bandwidth are subject to having their consumption limited to ensure adequate capacity for the majority of users.

Although the parameters are subject to change, the maximum upload permitted from on campus residents to off campus destinations is 4.7GB, during a twenty-four (24) hour period. If that threshold is exceeded, the user's bandwidth is limited to reduce the likelihood they will again exceed that threshold. Bandwidth management continues until it is apparent the user has returned to an acceptable rate of consumption. The threshold is one of many administrative tools used in a very dynamic network environment. It may be modified at any time to ensure that overall network objectives are met. The upload threshold meets the vast majority of the academic and leisure needs of on campus residents.

The most common reason for excessive upload demand is computers serving peer-to-peer (p2p) or file-sharing applications, such as BitTorrent. In addition to generating a large volume of network traffic, file-sharing applications potentially puts you in the position of illegally distributing copyrighted music, movies or software. If you need assistance deleting an application of this type, read the article at the following link to the Virginia Tech 4Help (computer) Knowledge Base: http://answers.vt.edu/kb/entry/1386/.

The second most common reason is your computer has been infected with a virus or trojan. Follow all 4 steps under the "CLEAN IT UP" section at http://antivirus.vt.edu to clean up your computer.

The next most common reasons are on-line game playing and video/audio chatting.

If you are not aware of any action on your part that may have led to the excessive consumption of network resources by your computer, it is possible file-sharing has been remotely established on your computer without your knowledge. This is easily accomplished on computers with weak or blank administrative passwords.

If your connection has become subject to bandwidth management, it is imperative that you locate and remove any file-sharing programs and copyrighted files you have not purchased and, that you immediately secure your computer. If you need assistance, call the university computer consultants at 4HELP, 231-HELP (231-4357).

 
Contact
Communications Network Services
1770 Forecast Drive (0506)
Blacksburg, Virginia 24061
(540) 231-6460
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Virginia Tech Communications Network Services Virginia Tech Communications Network Services