[zeromq-dev] epgm protocol question

Martin Lucina mato at kotelna.sk
Tue Apr 13 15:54:52 CEST 2010


taurel at esrf.fr said:
> On 13/04/2010 15:40, Martin Lucina 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?
> >
> > -mato
> >    
> This is exactly what I have noticed on my usage. No RDATA packet

Great, this confirms my findings which makes me happy since I don't feel
like I'm totally in the dark wrt to what is going on :-)

-mato



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