RE: [bmwg] Comments on draft-ietf-bmwg-mcastm-12.txt

Jerry,

The baseline measurement in the case of the burdened section includes
populating the FDB with unicast addresses. The test is then repeated with
the DUT/SUT actually forwarding the multicast traffic. Since the
"Join Delay' test in section 6.1 does not include this populating of the
FDB, the "baseline" would not be the same. This was why the text specifies a
baseline test first.  

> -----Original Message-----
> From: Perser, Jerry [mailto:jerry.perser@spirentcom.com]
> Sent: Wednesday, May 21, 2003 9:00 AM
> To: 'bmwg@ietf.org'
> Subject: RE: [bmwg] Comments on draft-ietf-bmwg-mcastm-12.txt
> 
> 
> Brooks,
> 
> Why perform the baseline at all?  How is the baseline metric used in
> determining the burdened metric?
> 
> The point is that these are two separate tests.  They even 
> have their own
> sections.  The way it is written now, you can run test A, but 
> you can not
> run test B without first running test A.  It's the dependency 
> that is the
> issue.
> 
> If you remove the baseline measurement dependency from 
> Forwarding Burdened
> Multicast Latency, what breaks?  Are the burdened results 
> INVALID if you
> don't already have baseline results?
> 
> Jerry.
> 
> > -----Original Message-----
> > From: Hickman, Brooks [mailto:brooks.hickman@spirentcom.com]
> > Sent: Tuesday, May 20, 2003 1:41 PM
> > To: 'bmwg@ietf.org'
> > Subject: [bmwg] Comments on draft-ietf-bmwg-mcastm-12.txt
> > 
> > 
> > >8.1. Forwarding Burdened Multicast Latency
> > >
> > >- Why 'Perform a baseline measurement of Multicast Latency'? 
> >  It is not
> > used
> > >in determining the Forwarding Burdened Multicast Latency.  
> > You can run both
> > >tests for comparison.  The burdened test is a separate test. 
> >  Suggest to
> > >remove this.
> > 
> > 
> > Jerry, the FDB of the DUT/SUT is populated with the unicast 
> > addresses prior
> > to performing a baseline
> > test. The test is then performed with the DUT/SUT actually 
> > forwarding the
> > unicast traffic. This
> > also applies to section 8.2. 
> > _______________________________________________
> > bmwg mailing list
> > bmwg@ietf.org
> > https://www1.ietf.org/mailman/listinfo/bmwg
> > 
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