Hi Gino
An interesting idea.
If my understanding is not wrong, the
draft describes the architecture and PCEP extensions that the NSBP (PCC)
sends out the route offer computation request to Service-PCE.
Since that
the NMS (PCC) sends out the PCReq messages to PCE is described in RFC4655,
What the procedure looks like if NMS is also involved? or NMS will not
appear when the route offer computation is adopted?
Sorry that I am not familar with the
TMF IPSPHERE Framework, hope
your clarification.
Regards
Fei
Gino Carrozzo <g.carrozzo <at> nextworks.it>
发件人: pce-bounces <at> ietf.org
2012-03-04 16:21
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Re: [Pce] I-D Action: draft-carrozzo-pce-pcep-route-price-00.txt |
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Dear all
we've just posted a new I-D about extending PCEP with a new route
information, the price.
As explained in the I-D, the route price is an additional info with
respect to the route cost(s) currently well covered by existing PCE RFCs
And this extension seems to us quite useful in those scenarios where a
Service Plane interfaces to PCE for elaborating its route offers.
Your feedbacks and comments would be very much appreciated.
br
Gino
On 04/03/2012 9.06, internet-drafts <at> ietf.org wrote:
> A New Internet-Draft is available from the on-line Internet-Drafts
directories.
>
> Title
: PCEP extensions for the computation
of route offers with price
> Author(s)
: Gino Carrozzo
>
Giacomo Bernini
>
Giada Landi
> Filename
: draft-carrozzo-pce-pcep-route-price-00.txt
> Pages
: 17
> Date
: 2012-03-04
>
> The PCE defined in RFC4655 is a functional entity generally
confined
> in the control plane to elaborate explicit optimal routes
with
> related costs to be installed as [G]MPLS tunnels/LSPs.
The resulting
> route cost(s)/metric(s) are Traffic Engineering indicators
used by
> the network administrator (carrier) to optimize the
usage of its
> network resources.
>
> In this document a framework for the usage of PCE in
cooperation with
> the Network Service and Business Plane (NSBP) is proposed,
along with
> related PCEP extensions. The NSBP invokes this
extended PCE (service
> PCE) to trigger the computation of network service offers
with
> related price information. The price of a network
connectivity
> service generally depends on strategic factors, but
it could also be
> influenced by the amount of mobilized network resources
(along the
> route), the ingress/egress interfaces/PoPs, etc. Therefore,
it could
> be provided by an extended service-PCE as an additional
route
> information.
>
> This document focuses on the extensions to the PCEP
protocol in
> support of the computation of route prices for intra-
and inter-
> domain network connectivity services. Mechanisms
for elaborating and
> retrieving price information in the PCE are vendor-specific
and out
> of the scope of this document.
>
>
> A URL for this Internet-Draft is:
> http://www.ietf.org/internet-drafts/draft-carrozzo-pce-pcep-route-price-00.txt
>
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
>
> This Internet-Draft can be retrieved at:
> ftp://ftp.ietf.org/internet-drafts/draft-carrozzo-pce-pcep-route-price-00.txt
>
> _______________________________________________
> I-D-Announce mailing list
> I-D-Announce <at> ietf.org
> https://www.ietf.org/mailman/listinfo/i-d-announce
> Internet-Draft directories: http://www.ietf.org/shadow.html
> or ftp://ftp.ietf.org/ietf/1shadow-sites.txt
>
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