David P. Reed wrote:
> I have no problem with WebRTC based videoconferencing. In fact, I think
> it is pretty good for 2-4 endpoints. But when you have lower cost
> laptops, they drag down the conferencing because of the compositing and
> mixing and multiple stream transmission lo
I have no problem with WebRTC based videoconferencing. In fact, I think it is
pretty good for 2-4 endpoints. But when you have lower cost laptops, they drag
down the conferencing because of the compositing and mixing and multiple stream
transmission load, even with 2-3 other participants.
[Wh
David P. Reed wrote:
>> > The lockdown has shown that actual low-latency e2e communication
matters.
>> > The gaming community has known this for awhile.
>>
>> how has the lockdown shown this? video conferencing is seldom e2e
> Well, it's seldom peer-to-peer (and for good re
On Saturday, June 13, 2020 9:17pm, "David Lang" said:
> > The lockdown has shown that actual low-latency e2e communication matters.
> > The gaming community has known this for awhile.
>
> how has the lockdown shown this? video conferencing is seldom e2e
Well, it's seldom peer-to-peer (and for
Hi Jonathan.
On 11.06.20 at 18:14 Jonathan Morton wrote:
>> On 11 Jun, 2020, at 7:03 pm, David P. Reed wrote:
>>
>> So, what do you think the latency (including bloat in the satellites) will
>> be? My guess is > 2000 msec, based on the experience with Apple on ATT
>> Wireless back when it was r
On Sat, 13 Jun 2020, Michael Richardson wrote:
David Lang wrote:
>> David Lang wrote:
>> > my point is that the if the satellite links are not the bottleneck, no
>> > queuing will happen there.
>>
>> It's a mesh of satellites.
>>
>> If you build it into a DODAG (RFC6550 wo
David Lang wrote:
>> David Lang wrote:
>> > my point is that the if the satellite links are not the bottleneck, no
>> > queuing will happen there.
>>
>> It's a mesh of satellites.
>>
>> If you build it into a DODAG (RFC6550 would work well), then you will
either
Right, if you overprovision the network, and under-utilize it with CBR links,
then clearly you can get quality, at a high cost.
I don't think you can make a lot of money at this, because ultimately
terrestrial providers came in and ate that lunch.
only in urban areas, there are still large pa
On Sat, 13 Jun 2020, David P. Reed wrote:
On Saturday, June 13, 2020 1:43am, "David Lang" said:
Remember, Musk already sacked the starlink leadership once for being to stuck in
'the way satellites are always built' so if it doesn't work well under load and
they can't fix it, he will find peo
> On 14 Jun, 2020, at 12:15 am, Michael Richardson wrote:
>
> They claim they will be able to play p2p first person shooters.
> I don't know if this means e2e games, or ones that middlebox everything into
> a server in a DC. That's what I keep asking.
I think P2P implies that there is *not* a c
David P. Reed wrote:
> SPRING (I thought) was just packet routing over a set of connected
> nodes that avoids creating routing tables. I.e. Source Packet RoutING.
I'm no expert on SPRING. I read enough to understand that I didn't care
about the debate in 6man (during RFC8200). I now ju
On Saturday, June 13, 2020 1:43am, "David Lang" said:
> Remember, Musk already sacked the starlink leadership once for being to stuck
> in
> 'the way satellites are always built' so if it doesn't work well under load
> and
> they can't fix it, he will find people who can.
He just might. De
On Fri, 12 Jun 2020, Michael Richardson wrote:
David Lang wrote:
> my point is that the if the satellite links are not the bottleneck, no
> queuing will happen there.
It's a mesh of satellites.
If you build it into a DODAG (RFC6550 would work well), then you will either
a bottleneck at
SPRING (I thought) was just packet routing over a set of connected nodes that
avoids creating routing tables. I.e. Source Packet RoutING.
Now I happen to have written one of the earliest papers on source routing, and
also authored the IP source routing options, explaining the advantages of using
David Lang wrote:
> my point is that the if the satellite links are not the bottleneck, no
> queuing will happen there.
It's a mesh of satellites.
If you build it into a DODAG (RFC6550 would work well), then you will either
a bottleneck at the top of tree (where the downlink to the DC i
David P. Reed wrote:
> Now if the satellite manages each flow from source to destination as a
> "constant bitrate" virtual circuit, like Iridium did (in their case
> 14.4 kb/sec was the circuit rate, great for crappy voice, bad for
> data), the Internet might work over a set of wi
On Thu, 11 Jun 2020, David P. Reed wrote:
On Thursday, June 11, 2020 2:56pm, "David Lang" said:
We will see, but since the answer to satellite-satellite communication being the
bottleneck is to launch more satellites, this boils down to investment vs
service quality. Since they are making a
On Thursday, June 11, 2020 2:56pm, "David Lang" said:
> We will see, but since the answer to satellite-satellite communication being
> the
> bottleneck is to launch more satellites, this boils down to investment vs
> service quality. Since they are making a big deal about the latency, I exp
On Thu, 11 Jun 2020, David P. Reed wrote:
But I doubt that is where they are going. Instead, I suspect they haven't
thought about anything other than a packet at a time, with no thought to
reporting congestion by drops or ECN.
And it's super easy to build up seconds of lag on TCP if you don't
On Thursday, June 11, 2020 12:14pm, "Jonathan Morton"
said:
> > On 11 Jun, 2020, at 7:03 pm, David P. Reed
> wrote:
> >
> > So, what do you think the latency (including bloat in the satellites) will
> be? My guess is > 2000 msec, based on the experience with Apple on ATT
> Wireless
> back w
> On 11 Jun, 2020, at 7:03 pm, David P. Reed wrote:
>
> So, what do you think the latency (including bloat in the satellites) will
> be? My guess is > 2000 msec, based on the experience with Apple on ATT
> Wireless back when it was rolled out (at 10 am, in each of 5 cities I tested,
> repeated
So, what do you think the latency (including bloat in the satellites) will be?
My guess is > 2000 msec, based on the experience with Apple on ATT Wireless
back when it was rolled out (at 10 am, in each of 5 cities I tested, repeatedly
with smokeping, for 24 hour periods, the ATT Wireless access
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