From: Balaji Siva (bsivasub@gmail.com)
Date: Sat Feb 12 2005 - 17:12:58 GMT-3
Just figured you wrote this chapter ;) do let me know about the
query below :)
On Sat, 12 Feb 2005 15:05:52 -0500, Balaji Siva <bsivasub@gmail.com> wrote:
> Okay. Understood, in a real world scenario, you would really have
> clients do the joins.
>
> Anyway, He says "To test the scenario and complete the joins, you must
> select some interfaces in both VLANs and issue the ip igmp join-group
> 239.42.42.42 interface command. After issuing these commands, you can
> ping the multicast group and receive responses from each joining
> router."
>
> So, in this case, R3 would not respond, correct ??
>
> So, does the configuration satisfy this 'lab" scenario ?
>
> Thanks
> Balaji
>
>
> On Sat, 12 Feb 2005 15:01:04 -0500, Scott Morris <swm@emanon.com> wrote:
> > Not really. In a real world scenario, you'd have hosts do the joining. And
> > in the case of multiple routers on a single ethernet interface one would be
> > the PIM DR, so one would truly join anyway.
> >
> > Pings aren't the only mechanism to verify that a router has joined a group!
> >
> > HTH,
> >
> > Scott
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> > Balaji Siva
> > Sent: Saturday, February 12, 2005 2:54 PM
> > To: Idris, Hashiru Aminu
> > Cc: ccielab@groupstudy.com
> > Subject: Re: ip igmp join-group xxx.xxx.xxx.xxx (in solie vol II)
> >
> > Hashiru,
> >
> > This is some cooked up config scenario and so don't read too much into
> > it as far as best practice or config guidelines. I would think based
> > on the requirement that all routers in vlan B and 60 should join that group,
> > R3 which is part of the VLAN B should also be configured with the join
> > command regardless of it being the RP. Atleast that's what I would do :)
> >
> > For example if some router is pinging that group, R3 won't respond in this
> > configuration even thought it is part of VLAN B and so I believe it is not a
> > complete configuration.
> >
> > hope that helps
> > Balji
> >
> > On Sat, 12 Feb 2005 11:23:20 -0800 (PST), Idris, Hashiru Aminu
> > <hashng@yahoo.com> wrote:
> > > In LAB 5 of the solie book , the multicast chapter, in the scenario
> > > Scott indicted that the above command should be applied to some
> > > selected interfaces in the VLANS i.e VLANs B & 60. the little
> > > confussion here is that the command was not applied to R3 (the
> > > selected RP) now, does this indictes that all RPs should not have this
> > > command every time or is there any other reason why the router
> > > escapes that command or a typo error.
> > > hope someone that hash done the LAB could respond, or the author of
> > > the chapter himself.
> > > TIA
> > > Hashiru
> > >
> > >
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