From: Chris Lewis (chrlewiscsco@gmail.com)
Date: Sun Jun 11 2006 - 12:36:05 ART
Hi Petr,
Congratulations on passing so convincingly, you clearly demonstrate deep
undertanding of the topics with your posts.
I'd like to draw a clarification to what you describe below with reference
to some debugs that I posted on the NMC BBS site.
Please see the debugs and exchange between myself and Alexei at this link.
http://bbs.netmasterclass.com/eve/forums/a/tpc/f/4966010365/m/9661092903
From these debugs you will see that there has to be three general queries
prior to the query-max-response-time being activiated. Your description of
the LMQI and LMQC is accurate though I believe.
Cheers
Chris
On 6/10/06, Petr Lapukhov <petrsoft@gmail.com> wrote:
>
> Hello,
>
> Usually, with IGMPv2, you have two options to purge group state:
>
> 1) query-max-response-time (if nobody answers in that period group state
> is purged. 10 seconds by default.
>
> 2) last-member-query-[interval|count]. These two timers control "leave"
> message
> processing. Receiving "leave", router immediately sends GSQ with
> "max-response-time" set to "last-member-query-interval".
>
> If after "count" requests sent with "interval" timespan nobody replies,
> group state is purged. By default they have interval=1 and count=2.
>
> HTH
> Petr
>
> 2006/6/6, Chris Lewis <chrlewiscsco@gmail.com>:
> >
> > Yes,
>
> For a silent leave (as in IGMP version 1) you will have to wait for the
> general query to receive no response for three attempts (which totals
> twice
> the timer for this query, as the first one sent counts as time zero),
> followed by the max-query-response timer.
>
>
> On 6/6/06, johngibson1541@yahoo.com <johngibson1541@yahoo.com> wrote:
> >
> > Doesn't the periodic query (in both v1 and v2 of IGMP) automatically
> purge
> > inactive endsystems ?
> >
> > John
> >
> > CCNP CCDP CCIP , CCIE lab 3rd attempt in 6 days.
> >
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>
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