Re: [Debconf-video] video annotations for DebConf13
On Thu, 2013-08-08 at 21:07 +0200, Wouter Verhelst wrote:
> On 08-08-13 19:59, Axel Beckert wrote:
> > Hi,
> >
> > On Thu, Aug 08, 2013 at 05:33:11PM +0200, Holger Levsen wrote:
> >>> What is the bandwidth at the site like?
> >>
> >> 100mbit symetric, afaik. cc: abe@d.o to confirm
> >
> > That's what I have been told. But it seems to be more.
> >
> > Over a long time (mirror sync) I got 33 MB/s easily and peaks up to
> > 126 MB/s which smells suspiciously like the 1 GBit/s others were
> > mentioning.
>
> Maybe that just means that the SLA is 100mbit, but that we can use more
> if the bandwidth is available?
In any case, I would not suggest we rely on being able to use more than
a fraction of that bandwidth for video streams.
Daf, the way we've done streaming at DebConf so far (7 years now?) is
shown in:
http://anonscm.debian.org/gitweb/?p=debconf-video/package.git;a=blob;f=doc/network-debconf.png;h=f958a0b472c1150df3e6b3feefdcb2429c0050bd;hb=a1522ac272ccd3f211cec9e806a0df4f197252a5
Each stream is sent to a single internal server (localstream1). There
is a single external relay (krusty) pulling from localstream1, and then
multiple additional relays pulling from krusty. Thus, streams are
available to internal and external viewers without multiple copies being
sent over the WAN link.
I'm still unclear on whether you can use Icecast for the subtitled WebM
streams. If so, then a similar arrangement should be possible. Ideally
we could use the same set of relay servers.
Ben.
--
Ben Hutchings
I say we take off; nuke the site from orbit. It's the only way to be sure.
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