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Re: [CCAMP] draft-ali-ccamp-rc-objective-function-metric-bound-03.txt

John E Drake <jdrake@juniper.net> Tue, 13 August 2013 12:47 UTC

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From: John E Drake <jdrake@juniper.net>
To: Daniele Ceccarelli <daniele.ceccarelli@ericsson.com>, "Matt Hartley (mhartley)" <mhartley@cisco.com>, Fatai Zhang <zhangfatai@huawei.com>, "CCAMP (ccamp@ietf.org)" <ccamp@ietf.org>
Thread-Topic: [CCAMP] draft-ali-ccamp-rc-objective-function-metric-bound-03.txt
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Date: Tue, 13 Aug 2013 12:47:33 +0000
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Subject: Re: [CCAMP] draft-ali-ccamp-rc-objective-function-metric-bound-03.txt
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Daniele,

Snipped, comment inline.

Yours Irrespectively,

John

> Finally, wrt your comment:
> 
> > JD:  The draft is proposing to embed PCEP within signaling.  By
> > definition, this
> > *is* allowing the client to access the server layer PCE.  This is no
> > different than allowing the client to access the server layer PCE
> > without embedding PCE within signaling.
> 
> There is a subtle difference: what the client node has access to is the server
> border node (policy, addressing and so on) and not the PCE. Then the server
> border node is in charge of querying the PCE.

JD:  We had this discussion about a year ago.  If you think of the UNI as a set of adjacencies,
one each for signaling, routing (optional), and PCE (optional), then in either case the PCE
adjacency is with the node on the network side of the UNI, and in either case that node acts
as a surrogate for the server network.

> 
> 
>

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