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Re: Question on expected behavior.


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  • From:
  • To: Brent Draney <>
  • Cc: , Brent Draney <>,
  • Subject: Re: Question on expected behavior.
  • Date: Thu, 27 Jul 2006 15:17:42 -0400

Brent,
Yes Switch A, and Switch B are running VRRP. Yes SRC connected to
A works every where.

Thanks
Anand





Brent Draney
<>

07/27/2006 02:36 PM

To

cc
Brent Draney
<>,

,


Subject
Re: Question on expected behavior.







Have you verified that a source connected to switch A and a receiver
on switch B works? I assume that switch A and switch B ar the ones
running vrrp.

Brent

> Brent,
>
> Here is the sime topology map: This should help.
>
>
> [receiver 1] ---- [switch A]-----------[switch B]--- [receiver 2]
> \ /
> \ /
> [L2 switch]
> |
> [Source]
>
> The Source can be seen by receiver 1, but not by receiver 2. Turn on
VRRP
> and single home it and everything works fine.
> Switch A is the one that sends the PIM register messages to the RP.
Switch
> B, sees the src, and creates an entry in its mroute table.
> The L2 switch is definitely sending traffic up to switch B.
>
> Thanks
> Anand
>
>
>
>
>
> Brent Draney
> <>
>
> 07/27/2006 12:50 PM
>
> To
>
> cc
> ,
>
>
> Subject
> Re: Question on expected behavior.
>
>
>
>
>
>
>
> Have you tried bridging the 2 switches together without vrrp and
> verifying that hosts on both switches will be able to join? I
> would guess that its a snooping bug with bridged switches and
> has nothing to do with vrrp which is a layer-3 thing.
>
> Brent
>
> > Hi,
> > I have a question on what should be expected behavior for
> > PIM/IGMP.
> >
> > I have a source which sits behind two switches that are running vrrp.
> >
> > Switch A IP: 10.1.1.9
> > Switch B IP: 10.1.1.10
> > Virtual IP: 10.1.1.11.
> >
> > I also have some users that are directly connected to Switch A, and
> Switch
> > B. For some odd reason all users that are connected to Switch A can
> > receive the stream.
> > Everyone connected to Switch B cannot. The funny thing is that if I
> > single home the same source onto switch A it works fine. If I single
> home
> > the src to Switch B it works fine. The only time it has issues is if
> they
> > are in this VRRP configuration.
> >
> > Question:
> > Because Switch A is the IGMP designated router, does that mean Switch
B
> > should stop responding to any requests for that Group? even though its

> > directly connected to that group?
> >
> > Or is this another Bug? Both switches are Nortel 8600's.
> >
> > Thanks
> > Anand
> >
> >
> >
> >
> >
>
>
>
>







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