Our shaping rules for the various segments of our network are set up to "borrow bandwidth" from each other as needed. With the Packetlogic, this is no longer necessary. In the past, we had a script running that divided bandwidth available to students in the residence halls differently by time of day giving them more bandwidth at night and reserving a larger portion of the total for faculty and staff during regular hours. Others we don't block, but monitor for suspicious activity associated with infected machines on campus that might need some help and clean up. Some sites we block entirely, which we've identified as being involved in virus spreading and phishing emails. We use the Packetlogic in part to track some of the unwanted traffic associated with viruses, so we can identify our infected systems and get them cleaned up. We also prioritize traffic from academic resources located outside our network, whether services such as OhioLINK and Naxos Music Service, or Oberlin resources provided by contractors like Blackboard (Oberlin OnCampus). Our goal is to give the Fragile the helping hand they need to function, encourage the Good to share nicely on the network, and squelch and limit the Bad as much as we can to make the network experience as responsive as we can. There are three classes of traffic in general: Good, Bad, and Fragile. Once, our bandwidth manager was turned off for an afternoon, and pretty much everything besides BitTorrent came to a standstill.
But, as we've seen, even simple web browsing becomes painful or simply impossible in all the din. Many applications would simply break, especially those sensitive to latency and jitter, like Skype and game play. If we were to let all traffic pass without management, there would be collisions and contention for passage through our connection to the rest of the world. Until unlimited bandwidth becomes available cheaply, we will always need to manage what traffic we generate to keep things flowing smoothly. This situation keeps changing, and we're always looking for ways to increase our bandwidth within our budget. Our location in rural Lorain County at times has limited our options, as some types of circuits are simply not available and other carriers do not have a presence anywhere nearby. That sounds like a lot, until you divide by the number of users, which might be about half of us during busy times.Ĥ50,000 kb/s / 2000 users = 225 kb/s/user!Īs applications have developed and demand grown, we've steadily increased our bandwidth purchased each year to try to keep pace. We enjoy a fiber connection from Time Warner, which provided us 450Mb/s usable combined intraOhio, Internet_2, and commodity Internet bandwidth. Visio stencils of Procera equipment, courtesy of Mark Bailey of Procera Networks.Īt the time this presentation was made, the Internet connection for Oberlin College is provided by the Ohio Academic and Research Network, OARNet. This is an overview, followed by a live demo of Oberlin's system which can't be reproduced here.
RYZOM BITTORRENT SOFTWARE
A10 Networks - makes a thing of IPv6 (for their routers)Īnd there is a host of little boxes and/or software claiming to do this, but I need Gb/s throughput.Emerging Technologies - "Net Neutral" shaping.XRoads Networks - small company, enterprise class?.
Exinda - AD integration (not much use to me).Not including point-to-point WAN optimizers, or load balancers, but Internet bandwidth management appliances.
Who's in the field these days? (Dated, I no longer do this routinely and have not refreshed this much recently at all)
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