The MPLS-OPS Archive

["M. ELK" <elkou141061@hotmail.com>]

Hi Spice

Actually know nothing about cable setup so unable to comment on U enquiry .

N.B: Guess cable service is broadcast and not multicast (host join a 
specific group) ,also
       the Source is just one and the broadcast tree is fixed .

Brgds

>From: Spice Sylvia <falsesylvia@yahoo.co.uk>
>To: mpls-ops@mplsrc.com
>Subject: Re: [MPLS-OPS]: P2MP LSP and Multicast for BGP/MPLS VPN Date: Tue, 
>15 Mar 2005 09:17:04 +0000 (GMT)
>
>Hi,
>
>I walked down to my simple cable service provider
>today and asked him how he works
>
>He said i do:
>                 CE1..n    CE1..n
>                    |        |
>-->incomingVB--->Node1--->Node2--->Node3---...
>                    |
>                 Node4-->Node5-->Node6--...
>                    |
>                  CE1..n
>
>and so on.
>
>I then wondered why merging streams is not possible on
>P nodes, if you take the above analogy, the PE
>functions as a P too...
>It simply sends out the same bitstream on different
>ports from the ingress PE.
>
>It does not setup "multiple LSPs".
>
>Ofcourse cable provider-2 has his own "VPN" space and
>does what he wants inside the same and so on...
>
>Is this looking different or diffcult to me?
>
>And where is "top label" in this?
>:(
> >
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