To Peter's question, ordinarily for no- high bitrate to small screens is not always an issue- except perhaps in a tight situations such as where you peak your wire speed and need to start intelligently trimming to save business app performance. For the most part adaptive bitrate does work, well, unless you add bandwidth suddenly and the upscaling overwhelms your other hardware that doesn't scale to that throughput yet, resulting in dropped packets. Shaping to smaller screens might might add up if you weren't caching.
Moving forward, I've been starting to look more at the intelligence and metrics we can get for planning versus simply managing any given application or IP address. For example, should I invest in IPTV? What devices are users consuming video on? How many devices are there? How fast are they growing in number? How can we scale in the mobile world (wifi) and manage for increased client density, flatter networks smaller chokepoints and more, yet thinner uplinks (Aps) if my infrastructure investments don't keep up. That said I don't like to over-manage bw per se. I let them go for the most part except for a few things I need to shape unless there is a problem. Better insight about personal devices from all network systems for me helps inform a number of other decisions. (MDM, for example, guest management, site design, or investments in wired infrastructure to name a few.) Jason, so far I like both devices, but they are very different. I am by no means an expert on either; far from it. Nevertheless, from what I've seen, Procera is a different idea than you're used to with the PS10000. Exinda is very much the same as your PS10K in terms of how it's managed- just a different interface and a few differences in information provided. Procera is more flexible, I think, but a higher learning curve and I feel it's easier to do something you didn't mean to do- either by bad policy config, or by accidently dragging and dropping a whole set of objects someplace it doesn't belong. Also, in Procera, something can match a policy multiple times, for example. It's not necessarily bad, just different. Procera is not for the faint of heart, but it's powerful once you know how to use it. Both when setup seem to be pretty much set and forget and both are worth a look. Right now, Procera scales to higher throughput, but I think that's a short-term issue unless you require much more than 10G today. Exinda is fast and easy to setup, and pretty much what you see is what you get in terms of reporting etc. If I'm wrong about any of this anyone with more experience can correct me. D?C From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Jason Watts Sent: Tuesday, March 24, 2015 11:42 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] netflix question Dexter, Are high bitrate streams from mobile devices really a big concern? I would think most devices would communicate the device type either by user-agent or the platform specific app and the stream provider would have built in the intelligence to optimize the stream size. While wanting to deliver the best experience I think content providers are also faced with the problem of bandwidth expense and would look anywhere and everywhere to lighten the load, hence adaptive bitrate streams. This also goes back to the user experience issue. Netflix knows that trying to stuff a 4k stream through a weak wireless signal on a phone will likely provide a crappy user experience at a higher cost and therefore have built-in the adaptability to provide the best quality that is appropriate for the receiver which often means lowering the bitrate. (PS, I'm curious about your experience with those shapers, the PS10000 here is quite long in the tooth) Jason Watts | Senior Network Administrator PRATT INSTITUTE Academic Computing On Mar 24, 2015, at 11:32 AM, Dexter Caldwell <dexter.caldw...@furman.edu<mailto:dexter.caldw...@furman.edu>> wrote: I've testing a Procera right now, along with an Exinda. One nice thing about the former, it can do device profiling/fingerprinting- so in theory, you could probably build a set of policies that effectively said for a phones, you want to squeeze bandwidth down so that smaller screens, don't ever pull an HD or say 4K video stream when they become more prevalent. But perhaps tablets and could. Has anyone tried anything like this using the fingerprinting? D/C From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Thomas Carter Sent: Thursday, March 19, 2015 4:04 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Subject: Re: [WIRELESS-LAN] netflix question We don't charge students based on usage or tiered levels of service and currently don't have major bandwidth issues, but are keeping a close eye on it. That being said, for a 24 hour period, streaming video is approximately 2/3 of all bandwidth usage. That includes Netflix, YouTube, etc. 40% just for Netflix is approximately accurate for us as well. We use a Procera PacketLogic but don't explicitly limit streaming media. That will be the first controls we add if bandwidth does become an issue. During class/business hours, the overall streaming video is closer to ½ of all bandwidth and doesn't start increasing until about 7pm, peaks at 1am, and falls off a cliff to nothing about 1:30am. Thomas Carter Network and Operations Manager Austin College 903-813-2564 <image001.gif> From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Alexander, David Sent: Thursday, March 19, 2015 10:46 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Subject: [WIRELESS-LAN] netflix question I wanted to know if Netflix has been a problem for other schools, specifically those with large residential campuses. We've seen usage on our campus grow a lot over the past few years, and our response has been to implement a bandwidth cap on Netflix from 8 am to 10 pm. This pretty much makes Netflix unusable during the day. When we lift the bandwidth cap at night, Netflix takes up around 40% of our total traffic. I'm curious if other schools are dealing with Netflix bandwidth issues and what solutions you have implemented that allows students to enjoy Netflix without impacting the usability of the network. Thanks, Dave ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
