Lee, Funny you should mention that. Similar issues here, although a little more sporadic.
http://arstechnica.com/apple/2015/01/why-dns-in-os-x-10-10-is-broken-and-what-you-can-do-to-fix-it/ That article details out some of the woes. However I had our desktop engineering team reach out to our campus Apple rep for an explanation and didn't get one substantial, only that it had been reported and was being investigated internally. In my experience over the week heading into Christmas, CDN'd traffic is dropped as it appears the system is not passing HTTP 302 redirects to the application layer. I have been trying to pinpoint logs to prove this, but exactly as you point out, it only seems to be CDN heavy sites. I installed Yosemite on my Mac and its very sporadic. I can surf ESPN fine for a page load or two, but as soon as I start to watch a video, I won't be able to load anything else until a restart. I can't reproduce the problem in Mavericks, and iOS devices seem to work just fine. The only thing I can link the issue to is latency. The longer the response time (our peering points get congested frequently), the quicker the browsing session will halt. Just my 2¢. I don't have a fix at all yet, but offering up what I've seen and I'm glad I'm not the only one thats seeing it. --Britton Britton Anderson <blanders...@alaska.edu> | Senior Network Communications Specialist | University of Alaska <http://www.alaska.edu/oit> | 907.450.8250 On Fri, Jan 16, 2015 at 8:56 AM, Lee H Badman <lhbad...@syr.edu> wrote: > Just throwing this out to the group. Over this week, where we’ve had > almost 20K peak client devices on the WLAN, we’re getting a couple of > complaints a day of (seemingly) Apple devices, primarily Macs, getting > either slow page loads or hung pages even though DNS resolutions are fine > on those machines. We haven’t done detailed analysis yet, buts starting to > feel a bit like a trend. Seems to only happen on content-rich pages like > CNN, ESPN, etc that are Akamaized (we have local servers). Again, very > circumstantial, so far. > > For what it’s worth, we also recently put all of these of these users > behind a NAT topology using A10 technology, but thus far there’s not much > to point at in the NAT itself that gives away any sense of issue. > > Anyone else seeing what I describe here? > > Thanks- > > Lee > > Lee Badman > Wireless/Network Architect > ITS, Syracuse University > 315.443.3003 > (Blog: *http://wirednot.wordpress.com* <http://wirednot.wordpress.com>) > > > > ********** 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/.
