From: Scott Morris (swm@emanon.com)
Date: Sat Feb 12 2005 - 17:01:04 GMT-3
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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