RE: FW: [bmwg] WG Last Call: draft-ietf-bmwg-mcastm-10.txt
"David Newman" <dnewman@networktest.com> Fri, 31 January 2003 20:53 UTC
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From: David Newman <dnewman@networktest.com>
To: Debby Stopp <debby@ixiacom.com>, bmwg@ietf.org
Subject: RE: FW: [bmwg] WG Last Call: draft-ietf-bmwg-mcastm-10.txt
Date: Fri, 31 Jan 2003 12:55:15 -0800
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Debby, I hope you're feeling better. I've reread the old thread. Neither it nor your message below address the issue raised -- namely, exactly what kind of traffic, in what proportions, is offered to and received by which ports. IMO it is not enough to say "if you combine this section and that section" the test setup is "implied." The best way to ensure repeatability is with explicit, not implicit, declarations of all relevant test parameters. I hadn't pointed this out earlier, but this comment holds true for the reporting format sections as well as those on test setup. dn -----Original Message----- From: bmwg-admin@ietf.org [mailto:bmwg-admin@ietf.org]On Behalf Of Debby Stopp Sent: Thursday, January 30, 2003 4:47 PM To: bmwg@ietf.org Subject: Re: FW: [bmwg] WG Last Call: draft-ietf-bmwg-mcastm-10.txt I'm home sick today, so I can't respond to all comments but I did notice something from a previous thread: ----- Original Message ----- From: "Hickman, Brooks" <brooks.hickman@spirentcom.com> > "Throughput measurement is defined in RFC1242 [Br91]. A search algorithm > MUST be utilized to determine the maximum offered frame rate with a zero > frame loss rate." > > RFC1242 does not specifically address multiple classes of traffic. I would > suggest elaborating on this a little. For example, are both the multicast > traffic AND unicast traffic varied to find the throughput or only the > multicast traffic? While it may be inferred by defining the ratio, > specifying how the two classes of traffic are varied may make it a little > less confusing. This was discussed at length back in Oct 2001 - please see thread http://www.ietf.org/mail-archive/working-groups/bmwg/current/thrd10.html for details. I believe that if you combine: The offered load per each DUT/SUT port MUST not exceed the maximum bandwidth capacity of any configured receive DUT/SUT ports. with Throughput measurement is defined in RFC1242 [Br91]. A search algorithm MUST be utilized to determine the maximum offered frame rate with a zero frame loss rate. it is implied that you must vary the offered load, & again, that would depend on whether you were chosing: a) As an independent rate for unicast class and multicast class of traffic OR b) As an aggregate rate comprised of a ratio of multicast class to unicast class of traffic. as to how that offered load was varied. Debby Stopp Principal Software Engineer (818) 444-2365 IXIA 26601 W. Agoura Rd. Calabasas CA 91302 Tel: 818 871 1800 (US) +1 818 871 1800 (international) debby@ixiacom.com _______________________________________________ bmwg mailing list bmwg@ietf.org https://www1.ietf.org/mailman/listinfo/bmwg
- [bmwg] WG Last Call: draft-ietf-bmwg-mcastm-10.txt Kevin Dubray
- RE: [bmwg] WG Last Call: draft-ietf-bmwg-mcastm-1… David Newman
- Re: FW: [bmwg] WG Last Call: draft-ietf-bmwg-mcas… taha
- RE: FW: [bmwg] WG Last Call: draft-ietf-bmwg-mcas… David Newman
- RE: FW: [bmwg] WG Last Call: draft-ietf-bmwg-mcas… Perser, Jerry
- RE: FW: [bmwg] WG Last Call: draft-ietf-bmwg-mcas… Randy Bush
- Re: FW: [bmwg] WG Last Call: draft-ietf-bmwg-mcas… Kevin Dubray
- Re: FW: [bmwg] WG Last Call: draft-ietf-bmwg-mcas… taha
- Re: FW: [bmwg] WG Last Call: draft-ietf-bmwg-mcas… taha
- Re: FW: [bmwg] WG Last Call: draft-ietf-bmwg-mcas… Hickman, Brooks
- Re: FW: [bmwg] WG Last Call: draft-ietf-bmwg-mcas… Debby Stopp
- RE: FW: [bmwg] WG Last Call: draft-ietf-bmwg-mcas… David Newman
- RE: FW: [bmwg] WG Last Call: draft-ietf-bmwg-mcas… Perser, Jerry