They probably have ICCP clusters enabled for their proxies, especially if they are using Squid (www.squid-cache.org). ICCP clusters enable multiple squid proxies to cluster up and will not result in such external bandwidth waste.
Harvard sits on a SONET ring along with MIT and has OC12 connections going out to regular Internet and plus, Internet2.
Most of the time I've picked up about 3MB/sec from Harvard network.
Students, being students, ignored it largely. The offenders who chose to ignore it and flaunt the fact they were ignoring it (anything above 2 Mb/s for over a few hours) were warned by mail individually, and after that, had their ports shut off and the MAC address of their computers banned from the DHCP pool, so no matter where they went (i.e., plugging it into their roommate's port), they were locked out.
Well, if I were the student that got my MAC addr banned, duh! just swap out the network card, and there goes the ban!:-D
If you have enough bandwidth, in which most universities do... Using a high-end Cisco router such as Cisco 7206VXR at your edge that borders with your T3 or OC3 circuits, you can use low-latency weighted-fair queining which will divide up the bandwidth in UNIX kernel style. It will give everyone same-cycle of bandwidth usage, just like the UNIX kernel giving out each processes fair cycle of cpu time. You can also do priority-based QoS, but I never had good luck with priority based ones on Cisco. I found weightedfair queing working very well. You can also get Cisco switches and do rate-limiting on each port that goes out to dorm rooms. Perhaps giving everyone 640kbps is very bad. But assuming you have a Gigabit Ethernet or at least a 100BaseTX that goes into university backbone for the upstream of the dorm switch, you should be able to limit each person down to about 3Mbps or so. If you have gigabit, depending on your dorm size, may be 10Mbps would be good? No brainer.. its your network, you know how it functions;)
what the heck, alqaeda doesn't even have internet connectivity at their so called main headquarters in bunch of tunnels in mountains of a country who can't even make glass (afghanistan). that's some hilarious shit. remote members of alqaeda in other countries might have done it but still, that's hoax to me.
As for wiring a new tech-savvy house, you should consider few things.
The technology is always improving and fiber is not a cheap material. Therefore technologies like Gigabit Ethernet are getting closer to users via copper. I would say use either high grade CAT5e or even CAT6 for the whole house, and you should even think about running phone wires over CAT5e or CAT6 as well. Who knows if you ever want to move up t Digital phones or VoIP later? You never know..
For your basement, where it will be the "MDF" Main distributio facility for your house, you may want to think about fiber there, as a backbone cabling. But then again, all this is just infrastructural cost. In order to really take benefit into this, you will end up having some enterprise class network in your house with tons of money spent... Think about what you really want... Good luck
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They probably have ICCP clusters enabled for their proxies, especially if they are using Squid (www.squid-cache.org). ICCP clusters enable multiple squid proxies to cluster up and will not result in such external bandwidth waste.
Harvard sits on a SONET ring along with MIT and has OC12 connections going out to regular Internet and plus, Internet2. Most of the time I've picked up about 3MB/sec from Harvard network.
If you have enough bandwidth, in which most universities do... Using a high-end Cisco router such as Cisco 7206VXR at your edge that borders with your T3 or OC3 circuits, you can use low-latency weighted-fair queining which will divide up the bandwidth in UNIX kernel style. It will give everyone same-cycle of bandwidth usage, just like the UNIX kernel giving out each processes fair cycle of cpu time. You can also do priority-based QoS, but I never had good luck with priority based ones on Cisco. I found weightedfair queing working very well. You can also get Cisco switches and do rate-limiting on each port that goes out to dorm rooms. Perhaps giving everyone 640kbps is very bad. But assuming you have a Gigabit Ethernet or at least a 100BaseTX that goes into university backbone for the upstream of the dorm switch, you should be able to limit each person down to about 3Mbps or so. If you have gigabit, depending on your dorm size, may be 10Mbps would be good? No brainer.. its your network, you know how it functions ;)
Get a Cisco Catalyst 4006 with GBIC slots, and it will definately help you and your university :)
www.gigabitsolution.com
well ya know, Linux is GNU OS. so even if redhat employees get jealous, too bad for them! :-D hehe
what the heck, alqaeda doesn't even have internet connectivity at their so called main headquarters in bunch of tunnels in mountains of a country who can't even make glass (afghanistan). that's some hilarious shit. remote members of alqaeda in other countries might have done it but still, that's hoax to me.
As for wiring a new tech-savvy house, you should consider few things. The technology is always improving and fiber is not a cheap material. Therefore technologies like Gigabit Ethernet are getting closer to users via copper. I would say use either high grade CAT5e or even CAT6 for the whole house, and you should even think about running phone wires over CAT5e or CAT6 as well. Who knows if you ever want to move up t Digital phones or VoIP later? You never know.. For your basement, where it will be the "MDF" Main distributio facility for your house, you may want to think about fiber there, as a backbone cabling. But then again, all this is just infrastructural cost. In order to really take benefit into this, you will end up having some enterprise class network in your house with tons of money spent... Think about what you really want... Good luck