From: Pavel Bykov (slidersv@gmail.com)
Date: Wed Feb 25 2009 - 12:16:14 ARST
"Push" and "Pull" are correct terms.
"sparse-dense-mode" is not a PIM method, but an interface operating mode.
It's something different. A loose analogy would be enabling RIP and OSPF on
the same interface - if there is no OSPF route, a RIP route would be used.
Same for multicast. There is a "Sparse mode PIM" that uses pull model,
sometimes needs RP, but not always (extensions like SSM or concepts like
Phantom RP remove this need). It does not forcefully flood data - that's
what makes it PULL.
Then there is "PIM dense mode" that pushes data - but again, it's a
multicast routing protocol, it is not an interface mode you are referring
to.
And Nadeem... I really hope you're kidding, otherwise you need to get back
to basics.
On Wed, Feb 25, 2009 at 2:14 PM, Modular <modulartx@gmail.com> wrote:
> Anthony Sequeira had a list of example "open ended questions".... of of
> which was:
>
> "which multicast PIM method uses a push and pull approach"???
>
> What's the correct answer???
>
> "sparse-dense-mode" -Which technically can do both. (Based on whether
> the RP is known or not.
>
> "sparse-mode" -the source pushes to the RP, while the client pulls from
> the
> RP.
>
>
> Thanks,
> Mod...
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
>
>
>
>
>
>
-- Pavel Bykov ---------------- Don't forget to help stopping the braindumps, use of which reduces value of your certifications. Sign the petition at http://www.stopbraindumps.com/Blogs and organic groups at http://www.ccie.net
This archive was generated by hypermail 2.1.4 : Sun Mar 01 2009 - 09:44:12 ARST