I think there may be 2 mechanism at play, a higher level one watching client buffer fill and deciding what stream quality to send and in what size chunks. Then a lower level one that decides whether to send the next packet or not, and retries the packets that dont get ACKd.
It has to be inefficient, throwing away a few packets to get the server to stop sending, then having those packets resent, especially if you do this 10 or 20 packets to stop the server from bursting. When we use a queue to police the traffic, we may think the other end is sending at a lower rate, but it may be a really fast stop-start thing, since policing chops off the bursts. But traffic shaping requires that you buffer the packets until the additional round trip latency slows the sender down, not sure how much buffer depth and latency this requires, it might be quite a bit and just as damaging to other traffic as dropping packets. From: Af [mailto:[email protected]] On Behalf Of Travis Johnson Sent: Wednesday, November 30, 2016 4:29 PM To: [email protected] Subject: Re: [AFMUG] OT Directv Now Yes... all the Apple TV stuff is very "bursty"... it's not a constant stream. I've had Apple TV since the very first version... it will burst up to about 8-10Mbps for 1-2 seconds, and then go away for 1-2 seconds, etc. Travis On 11/30/2016 2:24 PM, Tyler Treat wrote: watching on a laptop HDMI'd to my TV, and I can't pattern it in my tik yet. � It's all over the place. � seems quite bursty. � Need to queue it and see how it behaves. _____ From: Af <mailto:[email protected]> <[email protected]> on behalf of Robert Andrews <mailto:[email protected]> <[email protected]> Sent: Wednesday, November 30, 2016 3:23 PM To: [email protected] <mailto:[email protected]> Subject: Re: [AFMUG] OT Directv Now � But how much bandwidth...� That is the $$ question for us!! On 11/30/2016 01:21 PM, Chuck McCown wrote: > DVR and pause live stream are lacking.� But you can go do back episodes > of your favorite shows and they have the fast forward functions etc. > *From:* Tyler Treat > *Sent:* Wednesday, November 30, 2016 2:19 PM > *To:* [email protected] <mailto:[email protected]> > *Subject:* Re: [AFMUG] OT Directv Now > > ok Chuck, you made me do it! > > I've signed up and am patiently waiting for my appleTV! > > > > ------------------------------------------------------------------------ > *From:* Af <mailto:[email protected]> <[email protected]> on behalf of Chuck McCown > <mailto:[email protected]> <[email protected]> > *Sent:* Wednesday, November 30, 2016 3:05 PM > *To:* [email protected] <mailto:[email protected]> > *Subject:* Re: [AFMUG] OT Directv Now > Actually, that isn�t true.� It is lacking DVR functions, supposedly they > will be added. > *From:* Chuck McCown > *Sent:* Wednesday, November 30, 2016 2:01 PM > *To:* [email protected] <mailto:[email protected]> > *Subject:* Re: [AFMUG] OT Directv Now > No, none of them do any more because the episodes of your favs are > cached like Netflix. > You just browse episodes. > *From:* Cameron Crum > *Sent:* Wednesday, November 30, 2016 1:59 PM > *To:* [email protected] <mailto:[email protected]> > *Subject:* Re: [AFMUG] OT Directv Now > Does it have a "dvr"? > On Wed, Nov 30, 2016 at 2:52 PM, Chuck McCown <mailto:[email protected]> <[email protected]> wrote: > >���� Damn, I am liking this.� And I have tried them all. >���� Direct TV Satellite >���� Dish Network >���� SlingTV >���� Sony Playstation VUE >���� Beehive IPTV >���� Real Choice HTML5 IPTV >���� TIVO >���� I wish they would spin a TIVO app or something. >���� So far, this is the only one with a decent EPG that is very similar >���� to what you see on the satellite receiver. >���� Channel changes are instant. >���� Now I gotta figure out how to create my favorites or whatever they >���� call it. >���� *From:* Chuck McCown >���� *Sent:* Wednesday, November 30, 2016 1:44 PM >���� *To:* [email protected] <mailto:[email protected]> >���� *Subject:* Re: [AFMUG] OT Directv Now >���� Two stream limit. >���� *From:* Tyler Treat >���� *Sent:* Wednesday, November 30, 2016 1:42 PM >���� *To:* [email protected] <mailto:[email protected]> >���� *Subject:* Re: [AFMUG] OT Directv Now > >���� Is there a limit on concurrent sessions per user? >���� how much bandwidth does it suck up per stream? > >���� ------------------------------------------------------------------------ >���� *From:* Af <mailto:[email protected]> <[email protected]> on behalf of Chuck McCown >���� <mailto:[email protected]> <[email protected]> >���� *Sent:* Wednesday, November 30, 2016 2:29 PM >���� *To:* [email protected] <mailto:[email protected]> >���� *Subject:* [AFMUG] OT Directv Now >���� https://directvnow.com/accounts/select-plan >���� <https://directvnow.com/accounts/select-plan> >���� I am signing up. >
