From: ccie anees (ccieanees@yahoo.com)
Date: Fri Mar 30 2007 - 15:56:06 ART
I have a question on bidirectional PIM.
The document says, in bidirectional PIM, the traffic is rooted from RP and flows downstream and upstream of the RP. (100% Shared tree)
in PIM SM, it does not happen because of it is combination of shared tree (downstream to RP) and Source tree (upstream to RP).
But I can accomplish the same effect of bidirectional PIM in PIM SM using ip pim spt-threshold infinity. Then how bidirectional PIM defer from PIM SM?
Thanks,
Anees.
Joe Gagznos <kemphall@yahoo.com> wrote:
You are correct. PIM DM fallback will only occur on
sparse-dense interfaces. It doesn't apply to
sparse-mode only interfaces.
HTH,
Joe
--- ccie anees wrote:
> Thanks Joe,
>
> And I see in the Doc CD, no ip pim dm-fallback is
> configured when the interface is in sparse-mode.
>
> Does PIM DM fallback occurs in Sparse mode also? I
> was thinking it occurs only on sparse-dense-mode.
>
> Thanks.
>
>
> Joe Gagznos wrote:
> This will depend on how you have things
> configured.
> What groups are the rp-candidates advertising for?
>
> Remember that your mapping agent is responsible for
> receiving the rp announcements from the
> rp-candidates
> and then arbitrating conflicts. The mapping agent is
> responsible for announcing the winner of the RP
> 'election'.
>
> Now, if you have multiple mapping agents it is
> possible for each mapping agent to select a
> different
> rp for the same group. The mapping agents work
> independently of one another.
>
> HTH,
> Joseph Gagznos
> CCIE #17009
>
>
>
> -- ccie anees wrote:
>
> > Hi,
> >
> > Source
> > |
> > |
> > |
> > ----------------------------
> > | |
> > R1 (auto RP) R2
> > (auto-RP)
> > | |
> > | |
> > | |
> >
> > ------------------ --------
> > |
> > |
> > |
> > R3 (RP Mapping Agent)
> > |
> > |
> > |
> > Receivers
> >
> > In the above scenario, Which RP, the source will
> > register. If the source registers with both the
> RP,
> > Do we get the load balancing between RPs?
> >
> > Thanks,
> >
> > Anees.
> >
> >
> > ---------------------------------
> > Bored stiff? Loosen up...
> > Download and play hundreds of games for free on
> > Yahoo! Games.
> >
> >
>
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