What: We do bandwidth accounting based on tiers of service our users purchase (4GB, 20GB, 40GB, 60GB per week -- http://resnet.utexas.edu). Its a home grown netflow based system. Once a users exceeds their allocation, they are rate limited to modem speeds off campus for the remainder of the week (Cisco 6500 uBRL).
Why: Our Housing organization is an auxiliary business unit contracting for this service, so the Resnet must be self supporting which is why we charge. Given wireless expansion, equipment refresh and staffing, current charges allow for these bandwidth allocations based on present consumption patterns (we revisit yearly). Without any limits, history has taught us 5% of the users will dominate all available bandwidth to the detriment of the 95%. The approach fits with our university's core values (freedom of discovery and individual responsibility). We also view ourselves as an ISP when serving Housing and don't wish to be involved in what adults do with their network (as I wouldn't expect an ISP at my home to tell me what I should do). Non-dorm: Non-dorm wireless users on campus receive a base allocation (500MB/week for students). They may purchase tiers of service or one time bandwidth to supplement that. Universities have different values and cultures. 1) What do people use who do bandwith cap? 2) Do you Bandwith Cap? Why or Why Not? -- William C. Green e-mail: [email protected]<mailto:[email protected]> Director, Networking phone: +1 512-475-9295 ITS (Information Technology Services) fax: +1 512-471-2449 University of Texas 1 University Station Stop C3800 Austin, TX 78712 ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
