Re: Multicast Design

Rookie,
      Back in Vietnam, we had a bunch of DLSW peers that we needed to bring
into the core. We didn't terminate them on our core 6509s (or 5500s) but
instead had a pair of 7206s hanging directly off the core doing on the
tunnel termination. I think that when the SRND says "core" that it is
subject to interpretation. If you are worried about adding that overhead to
your core hardware, then add new hardware as an extension to the core
strictly for managing your MCast. Just a thought.

Charles Henson

                                                                                                                                    
  From: ALL From_NJ <all.from.nj_at_gmail.com>
                                                                                                                                    
  To: Rookie Ccie <rookie.ccie_at_gmail.com>
                                                                                                                                    
  Cc: ccielab_at_groupstudy.com
                                                                                                                                    
  Date: 10/06/2009 12:03 PM
                                                                                                                                    
  Subject: Re: Multicast Design
                                                                                                                                    

Afternoon Rookie Ccie,

The thing about the core, is that it is normally fast, redundant, and has
connectivity to all of the network. Do not place the RP somewhere that it
is slow, or where redundancy and reachability is sketchy ...

Not much burden at all to the core ...

In the design guide, it looks like these are within the data path. For a
medium size network, this is probably fine. For larger networks and where
mcast is used extensively, you might have the RPs on dedicated routers
attached to the core. These would be in the core still, fast, redundant,
etc ...

BTW - if you can say, what apps will you be running and to which clients?
I
am just curious ..., hope you do not mind me asking.

HTH,

Andrew

On Tue, Oct 6, 2009 at 12:19 PM, Rookie Ccie <rookie.ccie_at_gmail.com> wrote:

> Dear Experts,
>
> I'm planning to implement multicast on a medium sized campus network
using
> anycast RP. According to the Cisco Multicast SRND (
> http://www.cisco.com/en/US/tech/tk828/tech_design_guides_list.html) the
RP
> should be placed at the core of the network. Will doing this add an extra
> burden to the core? Please share your thoughts/experiences on this.
>
> Rgds
>
>
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--
Andrew Lee Lissitz
all.from.nj_at_gmail.com
Blogs and organic groups at http://www.ccie.net