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[mpls] MPLS/DiffServOA and BA

  • From: Andreas Hess <hess@tkn.tu-berlin.de>
  • Date: Thu, 16 Sep 2004 18:14:37 +0200
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Hi,
I am not sure if I really understood the concept of OAs and BAs.
To my understanding a DSCP value consists of a PHB scheduling class part and a 
drop precedence part. Furthermore, a BA is identified via the DSCP value.
So far, things are fine.
But I am not sure about  the definition of an ordered aggregate (OA), which is 
said to be a set of BAs that share an ordering constraint. Does this mean 
that an OA specifies the interaction of multiple PHBs on a diffserv node such 
that no reordering --- on microflow basis --- of packets occurs?
Is this correct?
Thanks for helping!

Regards Andreas






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