From: Scott Morris (swm@emanon.com)
Date: Sat Feb 12 2005 - 17:24:16 GMT-3
That's correct, R3 would not explicitly respond.
It would suffice as it says "some" interfaces. :)
Scott
-----Original Message-----
From: Balaji Siva [mailto:bsivasub@gmail.com]
Sent: Saturday, February 12, 2005 3:06 PM
To: swm@emanon.com
Cc: Idris, Hashiru Aminu; ccielab@groupstudy.com
Subject: Re: ip igmp join-group xxx.xxx.xxx.xxx (in solie vol II)
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
> >
> >
> > ---------------------------------
> > Do you Yahoo!?
> > Yahoo! Search presents - Jib Jab's 'Second Term'
> >
> > ____________________________________________________________________
> > __ _ Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
>
> ______________________________________________________________________
> _ Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Thu Mar 03 2005 - 08:51:20 GMT-3