Normally, these services do a whole backup, then only the changes afterwards. So it could just be the initial backup. I did the same thing with Carbonite recently, and besides taking a while with a relatively slow upload, there were no issues. My ISP certainly didn't let me know they cared :)
Matt Barber Network Analyst Morrisville State College 315-684-6053 -----Original Message----- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of heath.barnhart Sent: Friday, April 23, 2010 1:15 PM To: [email protected] Subject: Re: [WIRELESS-LAN] Limiting Bandwidth on Autonomous APs You could also approach it from different angle. Work with the student to see what/why he's backing up. It sounds to me like he's backing up his entire hard drive (500+ GB?) multiple times a week. That in itself seems a little ridiculous/paranoid. See if maybe the service he is using is capable of backing up deltas instead of a complete copy. Unless he's doing some sort of computational research on his computer with constantly changing data sets, there shouldn't be that much change from one backup to the next. That would/should drop his/her consumption drastically. You have to wonder how he's doing this at home. Wouldn't a normal ISP be a little annoyed if one of it's users was pushing that much data across their network? Heath On 4/23/2010 11:09 AM, Ammar Abdulahad wrote: > Nick, > > With BlueCoat packet shaper, you can use dynamic partitions for the > dorm subnet to insure fairness to a certain extent. Or you can setup a > partition to limit the backup traffic. If the backup traffic is > encrypted then it's game over unless you want to use adaptive > response, so when a user hits a certain amount of bandwidth you > classify his traffic and put him in a partition with lower bandwidth > for a limited time period you define (I haven't done this with the > packet shaper but I know it is doable). > > > Ammar Abdulahad > Wireless/Network Analyst > Lawrence Technological University > > > On Fri, Apr 23, 2010 at 11:43 AM, Jeffrey Sessler > <[email protected]> wrote: > >> It's unlikely that QoS is going to solve this problem unless you can >> properly classify the backup data from everything else. Depending on the >> age/type of the AP, it's firmware, and the clients connected to it, ensuring >> fair use of the radio may be more of a problem than the amount of traffic >> being passed. Packet shaping is one alternative, but that's assuming it's a >> data capacity and not a radio fairness issue. >> >> >> You may simply be at the point of exceeding your current wireless design, >> and it may be time to look at a upgrading to 802.11n, increasing AP density, >> or a combination of both. >> >> >> In my residential areas, since 2003 we've provide wired gigabit connections >> to our students, yet they prefer the freedom of our WiFi network. Given the >> trend, we designed and deployed our new WiFi network with capacity and not >> coverage as the primary factor. The design resulted in a dense AP >> deployment, providing a dual-channal 802.11n AP per ~7-12 residential >> students. >> >> >> A dual-channel AP per ~7-12 users may seem excessive to some, but the >> reality is that WiFi is now the primary/only network for the majority of our >> students, and as such, it needs to perform at an appropriate level. If a >> student want's to transfer 1TB or data, stream movies, edit photoshop files, >> etc. the wireless design/network shouldn't be a limiting factor. >> >> >> Jeff >> >> >> >> >> >> >>>>> "Urrea, Nick" 04/22/10 9:47 AM>>> >>>>> >> We are experiencing a problem in our dorm where one wireless user will >> use all of the Available bandwidth on an 802.11g Autonomous AP's radio. >> We are currently using a Bluecoat Packeteer packet shaper to shape >> traffic at the Internet. The problem I have seen is with user on-line >> backups, either to a Time Capsule (student moved a terabyte of data in a >> month) or to (mozy, Backblaze, etc.). We receive complainants that the >> Internet is slow. I am new to setting up QoS on cisco devices. >> >> >> >> Is there a way of limiting through QoS on an AP, so that if a student is >> using all of the radio's bandwidth other users using the same AP have a >> fair share of bandwidth? >> >> >> >> I would prefer not to rip and replace our 802.11g APs for 802.11N APs. >> >> >> >> Any other ideas are welcomed. >> >> >> >> Nicholas Urrea >> >> Information Technology >> >> UC Hastings College of the Law >> >> [email protected] >> >> x4718 >> >> >> >> >> ********** >> 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/. > -- Heath Barnhart, CCNA Asst. Systems and Networking Admin Information Systems and Services Washburn University Topeka, KS 66621 ********** 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/.
