From: Salau, Yemi (yemi.salau@siemens.com)
Date: Tue Jan 08 2008 - 09:43:31 ARST
Oh! I didn't see the sample topology San gave.
In this particular scenario, I need to ask: first, can you stream HD at
both ends? If yes, then go for it and assign an RP across the wan
clouds. But if you can't for some business or technical constraints,
then try SSM (or CDN If you don't do live streaming?)
One thing for sure, is that you don't want to send multicast HD streams
over the low bandwidth link. Also, if you have the option of providing
the Ethernet, that will depend on the distance across these 2 locations,
and you have to weigh that with the cost and the logistics of putting in
Dave's option2/1.
Many Thanks
Yemi Salau
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
David Prall
Sent: Tuesday, January 08, 2008 2:26 AM
To: 'san'; 'Cisco certification'
Subject: RE: Looking for Multicast Design Suggestion
Option 1 - Use SSM for the HD content. So an RP isn't required.
Option 2 - make a local router the RP for the HD Specific Groups.
Override
the auto-rp configuration. Put up a multicast boundary so that these
groups
don't see the light of day on the wan interface.
From your message I can't tell if everything has to remain local to you,
and
the RP not being local is what is causing the issues or not.
David
-- http://dcp.dcptech.com> -----Original Message----- > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On > Behalf Of san > Sent: Monday, January 07, 2008 8:22 PM > To: Cisco certification > Subject: Looking for Multicast Design Suggestion > > Hello All, > > I have got this task of re-designing the multitask network at > our alpha > network. > > Current Problem: > Currently We have only WAN link <4MB in the network. We are > using this > network for email, http and test IP phones. Recently when > we stream HD > multicast streams we see that BW is choked. We are using > auto-RP and RP is > not under our control. We have Distribution, edge and > endpoints under our > control. We have two RP sources guiding different sources > Lets assume RP-regular multicast and RP-HD multicast. > > Possible Requirement: > - without removing the existing WAN ? > > Possible options: > - We could add a additional Etherenet and route Multicast > traffic over > that. > > Questions: > What is the best method out of the below or what other > options i Have ? > - could we use to use WAN for non HD streams & Ethernet for > HD streams - > Pros and Cons ? > - Would traffic flow via Ethernet by default .....because of high > bandwidth ? > - Any filtering methods to use ? > > Sample Topology: > > Distribution 1----------WAN-------------Edge > =====Ether------------- > > > > -- > Thanks & Rgds > SAN > > ______________________________________________________________ > _________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html
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