[zeromq-dev] epgm protocol question

Steven McCoy steven.mccoy at miru.hk
Tue Apr 13 15:42:58 CEST 2010

On 13 April 2010 21:40, Martin Lucina <mato at kotelna.sk> wrote:

> steven.mccoy at miru.hk said:
> > On 13 April 2010 21:30, Martin Lucina <mato at kotelna.sk> wrote:
> >
> >     In my opinion the correct way to do this is to have OpenPGM
> >     reserve e.g. 5% of the requested data rate for RDATA by default, with
> the
> >     option to configure the reserved bandwidth amount for those who wish
> to
> >     shoot themselves in the foot.
> >
> >
> >
> > Unusually SmartPGM is the only implementation I've seen with rate
> controls and
> > all it has in respect to RDATA vs. ODATA here is to set RDATA to be say
> maximum
> > 5% of the rate limit - but not to reserve it solely for RDATA.
> So my reasoning is correct when I say that with the current implementation
> if I set TWX_MAX_RTE to e.g. 100Mbps, then proceed to publish at 100Mbps
> and *any* packet loss occurs, things will break?


I would presume the recommended architecture then would be to remove the
back channel and only use pro-active FEC packets, e.g. satellite bulk

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