I assume this also correlates with the size of client subnets and your supported data rates. We're using /22s, so are a bit concerned.
-----Original Message----- From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Mike Goebel Sent: Wednesday, February 22, 2012 11:09 To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] You knew it was coming...Airplay/Apple TV support for instructors. Has anyone actually tracked how much bandwidth/usage Bonjour coughs up across their wlan infrastructure? I haven't analyzed it, and while it could be bandwidth hungry, it appears to me that will be more with device to device. I'm playing devils advocate here, but is a 6 meg stream on an N access point both ways really going to be crunching anyone? I'd be worried about G yes, but N with a gig uplink? I do find it unnerving that all the bonjour devices are able to find each other and potentially create a lot of traffic, but 99.9% of the time I don't see anyone working any access point very hard. Mike Goebel Network Programmer Office of Information Technology Western Michigan University Phone: 269-387-0453 Email: michael.goe...@wmich.edu On 2/22/2012 10:18 AM, Kellogg, Brian D. wrote: > We will need Bonjour in order to allow faculty members to mirror their > iPads/WhateverAppleProductElse to an AppleTV in a classroom for presentations > wirelessly. Presently we block all mcast and bcast on our WLAN due to the > channel use overhead this incurs (anywhere from 10% to 20%). We'll be moving > to Aruba this summer where enabling bcast and mcast is not an all or nothing > endeavor I believe. I think Aruba is integrating some stuff into their > controller code to help with this problem or already has it. Someone who > knows more about Aruba can correct me if I'm wrong. > > -Brian > > -----Original Message----- > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Brian David > Sent: Wednesday, February 22, 2012 10:11 AM > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > Subject: Re: You knew it was coming...Airplay/Apple TV support for > instructors. > > We are faced with the same issues here at BC... We are starting to block it > for all students but have not for the Faculty. > Could you give more details on what apps the faculty needed bonjour for? > -Brian > > Brian J David > Network Systems Engineer > Boston College > > > -----Original Message----- > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Brian Helman > Sent: Wednesday, February 22, 2012 9:54 AM > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > Subject: Re: [WIRELESS-LAN] You knew it was coming...Airplay/Apple TV support > for instructors. > > Agreed. We are blocking bonjour between buildings, but not within. I wanted > to block within, but there are apps out there that the faculty want to use > that require it. That was the compromise I settled on... looking forward to > 802.11ac now. > > I thought my days of dealing with AppleTalk, IPX and Netbeui were done. > > -Brian > > -----Original Message----- > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Kellogg, Brian D. > Sent: Tuesday, February 21, 2012 5:21 PM > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > Subject: Re: [WIRELESS-LAN] You knew it was coming...Airplay/Apple TV support > for instructors. > > Had an Apple rep in recently and he stated Apple (Bonjour) has come a long > way since Appletalk on their network protocols. I wanted to believe him and > then I tried to use it on our campus. LAN only protocol that relies on mDNS > registration to bridge networks assuming all your end devices support it of > course. Reminds me of LAN/SOHO only protocols I worked with a decade ago. > Why not allow the device being mirrored to specify the device you want to > mirror to by IP address or FQDN. I don't think I'm asking for too much from > the man but, alas, perhaps I am. > > > Disappointed yet again by Apple network protocols, Brian > > -----Original Message----- > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Lee H Badman > Sent: Tuesday, February 21, 2012 4:57 PM > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > Subject: Re: You knew it was coming...Airplay/Apple TV support for > instructors. > > Would be interesting to contemplate a petition or similar from the Educause > members to Apple requesting that they catch up to the fact that their toys > are invading the enterprise, that the enterprise doesn't run on AirPorts, and > therefor they might develop towards the enterprise WLAN, Then again, I doubt > they'd give a rip. > > It's a shame that the sexiest devices on the planet have such shallow network > development behind them. > > -Lee > > > ________________________________________ > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] on behalf of Cappalli, Tim G @ LSC-ITS > [tim.cappa...@lsc.vsc.edu] > Sent: Tuesday, February 21, 2012 4:36 PM > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > Subject: Re: [WIRELESS-LAN] You knew it was coming...Airplay/Apple TV support > for instructors. > > It's time for Apple step up. How many hundreds of hours are we going to spend > on this? For the first time in a long time, we are saying "no" for the time > being. > > > Tim Cappalli, CCNA ACMA | IT Services | (802) 626-6456 >> tim.cappa...@lyndonstate.edu | it.lyndonstate.edu > > PRIVACY& CONFIDENTIALITY NOTICE > This message is for the designated recipient only and may contain privileged, > confidential, or otherwise private information. If you have received it in > error, please notify the sender immediately and delete the original. Any > other use of an email received in error is prohibited. > > Sent from my BlackBerry(r) PlayBook(tm) > > -----Original Message----- > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Peter P Morrissey > Sent: Tuesday, February 21, 2012 4:14 PM > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > Subject: Re: [WIRELESS-LAN] You knew it was coming...Airplay/Apple TV support > for instructors. > > Isn't it amazing that they actually mention classrooms and conference rooms > here, yet the geniuses at Apple probably have no clue about what is really > involved? > Pete M. > > -----Original Message----- > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Julian Y Koh > Sent: Tuesday, February 21, 2012 4:00 PM > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > Subject: Re: [WIRELESS-LAN] You knew it was coming...Airplay/Apple TV support > for instructors. > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On Fri Dec 16 2011 11:16:43 Central Time, "Johnson, Neil M" wrote: >> >> We have a request to support Airplay/Apple TV's on our enterprise >> network so that instructors can mirror presentations from their iPad's >> to classroom and meeting room projectors. > > This is only going to get more prevalent now that Mountain Lion will support > Airplay mirroring from OS X machines. > > <http://www.apple.com/macosx/mountain-lion/features.html#airplay> > > Gonna be fun.... > > - -- > Julian Y. Koh<mailto:kohs...@northwestern.edu> > Manager, Network Transport<phone:847-467-5780> > Telecommunications and Network Services Northwestern University > PGP Public Key:<http://bt.ittns.northwestern.edu/julian/pgppubkey.html> > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG/MacGPG2 v2.0.17 (Darwin) > Comment: GPGTools - http://gpgtools.org > > iEYEARECAAYFAk9EBcgACgkQDlQHnMkeAWMf8wCfdfVsWgcll4cqUiIQRL/DClf5 > w1IAnjvdC0e34jam3rguhn2fG/kUmm+p > =Bd3x > -----END PGP SIGNATURE----- > > ********** > 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/. > > ********** > 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/.
