for the draft,I have a question
of flow label. for example there is a situation as the following
according the solutions in this draft,
there is a great traffic AC1 ,which may be transported in two pw
path, e.g. PW1,PW2. and at resource and sink points, there is the same
flow label . now we supposed there is another traffic AC2 ,which may be
transported by encapsulation in pw3.
question: if pw3 label is the
same AC1 flow label. how to distinguish them very well. whether AC1 service
packets may be wrong regarded as AC2 services packets.
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|[PWE3] I-D Action:draft-ietf-pwe3-fat-pw-00.txt
A New Internet-Draft is available from the on-line
This draft is a work item of the Pseudowire Emulation Edge to Edge Working
Group of the IETF.
Title : Flow Aware Transport of Pseudowires
over an MPLS PSN
Author(s) : S. Bryant, et al.
Filename : draft-ietf-pwe3-fat-pw-00.txt
Pages : 18
Date : 2009-07-01
Where the payload carried over a pseudowire carries a number of
identifiable flows it can in some circumstances be desirable to carry
those flows over the equal cost multiple paths (ECMPs) that exist in
the packet switched network. Most forwarding engines are able to
hash based on label stacks and use this to balance flows over ECMPs.
This draft describes a method of identifying the flows, or flow
groups, to the label switched routers by including an additional
label in the label stack.
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