Extreme Networks recommends we use a setting of 2 for the DTIM value.
*--Jeremy L. Gibbs* Sr. Network Engineer Utica College IITS T: (315) 223-2383 F: (315) 792-3814 E: [email protected] http://www.utica.edu On Thu, Aug 4, 2016 at 9:34 AM, Jake Snyder <[email protected]> wrote: > In 60 seconds I was just over 100 (107) arp requests. This is a test > network. I can definitely ramp that up to do more testing. > > Thanks > Jake Snyder > > > Sent from my iPhone > > > On Aug 4, 2016, at 1:45 AM, James Andrewartha < > [email protected]> wrote: > > > > Hi Jake, > > > >> On 04/08/16 14:19, Jake Snyder wrote: > >> Slightly different test, Meraki SSID, with a MBA13 running 10.10.5. > > > > Thanks for giving it a test. > > > >> I did a packet capture on the AP filtered for arp and used wireshark on > the Mac with the same capture filter. I'm only tracking arp requests, > since that's all I should see on the MBA. 100% arp requests sent OTA from > the AP were seen by the MBA. But this is an older 11n MBA. I'll get my > hands on an 11ac device tomorrow and rerun the test. > > > > How many ARP requests were on the network? In one case in 75 seconds I > > saw 598 on the 10.9.5 laptop, with the 10.11.5 laptop seeing 184. > > Filtered with (arp.opcode==1) && (eth.addr==ff:ff:ff:ff:ff:ff). > > > > Filtering just on eth.addr==ff:ff:ff:ff:ff:ff I see 1863 vs 564 packets, > > roughly evenly split between NBNS, NetBIOS Browser and ARP requests with > > a touch of Dropbox LAN Sync and BOOTP (DHCP). Extending it out to > > eth.ig==1 (all broadcast/multicast traffic) it's 4353 vs 1310, with the > > addition of mDNS and IPv6. > > > >> Is it possible you are in promiscuous mode in Windows? You shouldn't > see the arp responses for anything that client didn't send, or in responses > to the clients request unless promiscuous mode is enabled. which then > isn't a fair test of what the laptop did or did not hear. > > > > My baseline hardware was a 15" Mid-2012 rMBP running 10.9.5, which is > > only 11n capable. When rebooted into 10.11 it also exhibits the problem. > > > > Thanks, > > > > -- > > James Andrewartha > > Network & Projects Engineer > > Christ Church Grammar School > > Claremont, Western Australia > > Ph. (08) 9442 1757 > > Mob. 0424 160 877 > > > > ********** > > 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/.
