I finally got my Avahi multicast reflector working and I can say that it works pretty well so far. Apparently, I was getting hit with a few interface group bugs. However, I did have a ton of interfaces. I think that fewer interfaces might help out a lot. I'm running one eight class C subnet for users and another one Class C for the multicast devices and that seems to be pretty stable.
The reflector has to be connected to all VLANs involved. So what I did was string the multicast VLAN across the campus and change the individual ports that the AppleTVs are on to that VLAN. However, we own our own fiber plant, so that might not be as feasible for others. Also, you can't have the multicast VLAN setting on when you use the reflector. My biggest problem with using just the multicast VLAN setting was that I had to keep resetting the Airplay on the AppleTVs to see them. For some reason, their advertisements only worked for a short period of time. I'm pretty sure that they said that the built-in gateway will L3 roam just like the clients can roam. I'm just annoyed that they did this preview a full three months (best case scenario) before it even goes into BETA! If anyone has any questions about the reflector, feel free to email me off-line (or here of course). I'll be glad to answer anything I can. Eric Barnett Senior Network Engineer/Wireless Administrator Information and Technology Services Arkansas State University (870) 680-4243 ebarn...@astate.edu http://wireless.astate.edu From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Robertson, Joshua A. Sent: Wednesday, July 25, 2012 11:42 AM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] Cisco Bonjour gateway webinar- anyone attend? I asked many of the same questions as Anders without a reply so I'm also wondering if they just weren't prepared/hadn't thought of the problems associated with having the devices on wired, if having vlans across a L3 boundary will require a controller there to terminate them, and if/how roaming works with it. Hopefully when they get to beta testing these issues will be handled and information provided. Here's the link for the presentation recording: http://cisco-apps.cisco.com/pcgi-bin/sreg2/register/online_detail.pl?RS=2403275&; Demo videos on YouTube AVC: http://www.youtube.com/watch?v=h6ZLSc_lYEg Bonjour Services Directory: http://www.youtube.com/watch?v=aDy1cgxeGDw Josh Robertson Network Systems Senior Engineer Old Dominion University Office of Computing & Communications Services (757)683-5046 j2rob...@odu.edu<mailto:j2rob...@odu.edu> http://occs.odu.edu/ [cid:image001.jpg@01CD6B36.D09BCD50] From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU]<mailto:[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU]> On Behalf Of Lee H Badman Sent: Wednesday, July 25, 2012 12:17 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Subject: Re: [WIRELESS-LAN] Cisco Bonjour gateway webinar- anyone attend? Good stuff- thanks, Joe. I will view it once it's available in archive, but that's a great summation. -Lee From: Joe Rogers [mailto:j...@usf.edu]<mailto:[mailto:j...@usf.edu]> Sent: Wednesday, July 25, 2012 12:12 PM To: The EDUCAUSE Wireless Issues Constituent Group Listserv Cc: Lee H Badman Subject: Re: [WIRELESS-LAN] Cisco Bonjour gateway webinar- anyone attend? I listened to it. It basically sounds like they're running an avahi process on the controller and caching any service advertisements on any VLANs (including wired VLANs) trunked to the controllers. Of course you need to have your controllers in a convenient location to get all of necessary the VLANs to them. When a client makes a service discovery request, the controller serves up the information from its cache. They are planning some level of filtering to restrict which clients can see which services (Apple TV's, etc). But, it wasn't yet clear what could be used for filtering (cilent MAC, username, radius attribute, etc). Per-SSID filtering was shown in the demo, but when I asked the moderators, they said they were considering all of the above filtering options. So, this solution does help solve the cross-subnet boujour service discovery problems in our environment, but we'll still face "authorization" issues. We can't simply create a 'student' and 'faculty' SSID and only allow the faculty to see Apple TV's. There are times when a student should be allowed to display their iDevice's screen on the classroom's AppleTV. Ideally that should be a privilege granted by the faculty member to a specific student as needed for a given class session. This really isn't something the network can 'bandaid'. It really needs to be a feature of the Apple products. The basic password security of Apple TV's simply isn't sufficient. Unfortunately the webcast didn't address any possibility of location-aware service discovery to limit the number of Apple TV's that might show up on an iDevice. On a side note, the Cisco webcast did cover their addition of NBAR support to the WLC's which has some cool application identification/prioritization/filtering potential. Joe Rogers Senior Network Engineer University of South Florida On 07/25/2012 10:59 AM, Lee H Badman wrote: Did anyone sit in on this http://tools.cisco.com/gems/cust/customerSite.do?METHOD=W&LANGUAGE_ID=E&PRIORITY_CODE=&SEMINAR_CODE=S16814 ? Any impressions? Thanks- Lee Lee H. Badman Wireless/Network Engineer Information Technology and Services Adjunct Instructor, iSchool Syracuse University 315 443-3003 ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ________________________________ Spam<https://www.spamtrap.odu.edu/b.php?i=687438728&m=286ccf7424b0&t=20120725&c=s> Not spam<https://www.spamtrap.odu.edu/b.php?i=687438728&m=286ccf7424b0&t=20120725&c=n> Forget previous vote<https://www.spamtrap.odu.edu/b.php?i=687438728&m=286ccf7424b0&t=20120725&c=f> ********** 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/.
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