From: Bryan Osoro (bryanosoro@yahoo.com)
Date: Sat Sep 11 2004 - 18:02:45 GMT-3
Howard,
Thanks for the ideas.
I have not tried the IPv6 versions of the IGMP
commands.
But to your question about the 60 seconds, not only is
it not displayed by the "?," it gives an invalid input
error if you put anything other than 60-300.
Like I mentioned, if I play with other IGMP commands,
I can get the router to take over after 16 seconds,
only problem is, I can't get it to query at 10
seconds, and take over at 16. Seems like I can do one
or the other only....
I'll tool around with v6 commands to see if that makes
a difference..
b
--- "Howard C. Berkowitz" <hcb@gettcomm.com> wrote:
> At 1:40 PM -0700 9/11/04, Bryan Osoro wrote:
> >I'm trying to do it without SNMP. Any ideas there?
>
> Warning: I know that the suggestion I am about to
> make is inelegant
> and generally insane. Given that caveat, try to find
> the equivalent
> command for IGMPv6, and see if it gives any better
> control. If it
> does, then try substituting V4 for V6 in the
> command. It's not
> unheard of to find that Cisco developers may derive
> a new
> functionality from an old command, build new
> functionality into the
> new one, but change the code so that the new
> function becomes an
> undocumented capability of the old.
>
> Not being in front of a router, is the 60 second
> minimum from the
> documentation or the ? function in context-sensitive
> help? I've
> found many cases where the documentation was more
> restrictive than
> the CLI.
>
> Have you tried this for all versions of IGMP? The
> timers may be
> different with IGMP version.
>
> These are all weird ideas, but I've seen examples of
> every one of
> them work with real code.
>
> >
> >I'll dig through mib controls in parallel.
> >
> >
> >
> >thanks
> >
> >B
> >--- "Howard C. Berkowitz" <hcb@gettcomm.com> wrote:
> >
> >> At 1:33 PM -0700 9/11/04, Bryan Osoro wrote:
> >> >I'm trying modify IOS IGMP default behavior.
> >> >
> >> >Any idea how to tweak IGMP like this?
> >> >
> >> >Two routers on a LAN segment should query for
> >> >membership ever 10 seconds. Additionally, if
> one of
> >> >the routers goes down, the other should take
> over
> >> >within 16 seconds.
> >> >
> >> >The ip igmp querier-timeout should allow you to
> do
> >> >this, but the minimum value you can actually
> >> configure
> >> >is 60 seconds.
> >> >
> >> >If you manipulate the ip igmp query-interval,
> the
> >> >querier-timeout is automatically double. So, if
> I
> >> >change that to 8, the querier timeout becomes
> 16.
> >> >However, this means that the router is querying
> the
> >> >LAN every 8 seconds, and not 10. Anyway to
> change
> >> >this behavior?
> >> >
> >>
> >> Have you checked whether there is a MIB variable
> >> available that will
> >> give you different control than the
> configuration
> >> command?
> >>
> >>
>
>_______________________________________________________________________
> >> Please help support GroupStudy by purchasing
> your
> >> study materials from:
> >> http://shop.groupstudy.com
> >>
> >> Subscription information may be found at:
> >> http://www.groupstudy.com/list/CCIELab.html
> >>
> >
> >
> >__________________________________________________
> >Do You Yahoo!?
> >Tired of spam? Yahoo! Mail has the best spam
> protection around
> >http://mail.yahoo.com
>
>
This archive was generated by hypermail 2.1.4 : Fri Oct 01 2004 - 15:00:41 GMT-3