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Cell Relay Retreat>MPLS WG Archive>month:2002-Nov> msg00142



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Load balancing draft

  • From: Alia Atlas <aatlas@avici.com>
  • Date: Wed, 20 Nov 2002 10:07:23 -0500
  • Cc: Shahram Davari <Shahram_Davari@pmc-sierra.com>, "'MPLS@UU.net'" <MPLS@UU.NET>, swallow@cisco.com

At 09:58 AM 11/20/2002 -0500, George Swallow wrote:
> > The concept of avoiding the reserved labels in an MPLS hash as a "best 
> way"
> > makes some sense, though it would probably only be gradually available as
> > hardware changes.
>
>One should observe that the technique is not useful unless you are
>100% sure that very box in the path from source to destination is
>behaving this way.

Why is it not incrementally useful?  Every LSR along the path that does 
this decreases the cases where an OAM packet may take a different route 
from the data packet.   It does require every LSR to implement to 
completely avoid OAM packets from taking different routes, but 
incrementally does simplify determining what happened to the OAM packets as 
compared to the data plane packets because there are fewer potential branch 
points.

Alia