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RE: Question about L2VPN over MPLS

  • From: Spice Sylvia <falsesylvia@yahoo.co.uk>
  • Date: Tue, 23 Mar 2004 21:53:32 +0000 (GMT)
  • Resent-Date: Tue, 23 Mar 2004 17:17:42 -0500
  • To: Luis Manuel Antunes dos Santos <luis-m-a-santos@telecom.pt>, MPLS-ops Mailing List <mpls-ops@mplsrc.com>

Just going a bit off topic here:
 
The minimum bit rate is a reflection of the ability of your multiplexer/demultiplexer to be able to able to give you the "exact" bits from the frame where you want to put your data.
 
Theoratically, I see no reason why there should be any limit,
 
Assume I use a E1 and I channelize it.
 
As long as all intermediate devices "know" that from the superframe structure, bit 1 has to go to A and bit 2 has to go to B and so on, it really does not matter.
 
I believe the current Digital Hierachies talk in terms of DS0 which is generally wrapped around to a speed of 64kbps.
 
Though another interesting thing I would like to add to your question is this:
Forget the bit rate, let us make it as granualar as we can. How do we do CBR  so that we have "minimum buffering" at the VPLS /L2VPN edge devices?
 
 

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