A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Routing Area Working Group Working Group of the IETF.
Title : Requirements for MPLS Over a Composite Link
Author(s) : C. Villamizar, et al.
Filename : draft-ietf-rtgwg-cl-requirement-01.txt
Pages : 19
Date : 2010-07-08
There is often a need to provide large aggregates of bandwidth that
is best provided using parallel links between routers or MPLS LSR.
In core networks there is often no alternative since the aggregate
capacities of core networks today far exceed the capacity of a single
physical link or single packet processing element. Furthermore,
links may be composed of network elements operating across multiple
layers.
The presence of parallel links, potentially comprised of multiple
layers has resulted in a additional requirements. Certain services
may benefit from being restricted to a subset of the set of composite
link component links or a specific component link, where component
link characteristics, such as latency, differ. Certain services
require that LSP be treated as atomic and avoid reordering. Other
services will continue to require only that reordering not occur with
a microflow as is current practice.
Current practice related to multipath is described briefly in an
appendix.
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