Re: [Pce] Best Wishes for the future of PCE WG !

Hi JP, Thanks for the great discussions we have had over the last 15 years. I wish you very best, I am sure you do and will excell in everything you put your mind, focus and effort on. Cheers, Igor From:JP Vasseur (jvasseur) To:pce@ietf.org,Julien Meuric,jonathan.hardw...@metaswitch.com,Deborah

Re: [Pce] PCEP as an SDN controller protocol?

Excellent question, John. Wonder myself. Let's ask Gert. He is very good at defining thibgs they are not :-) Yours also irresoectively,igor Sent from Yahoo Mail on Android On Tue, Aug 8, 2017 at 1:32 PM, John E Drake wrote: Hi, So, what exactly is it that PCEP should not do? Yours Irresp

Re: [Pce] PCEP as an SDN controller protocol?

heers, Igor From: stephane.litkow...@orange.com [mailto:stephane.litkow...@orange.com] Sent: Tuesday, July 25, 2017 8:50 AM To: Igor Bryskin; Jonathan Hardwick; pce@ietf.org Cc: pce-cha...@ietf.org Subject: RE: PCEP as an SDN controller protocol? Hi, You can use RESTCONF, NETCONF or anything si

Re: [Pce] PCEP as an SDN controller protocol?

Hi Stephanie, You said: < Why not limiting PCEP to path programming and path policies (traffic steering on path...) ? But why not to use for these purposes RESTCONF or gRPC/protobuffs? Do you see value in using explicit model based SBIs vs implicit (TLV-) based protocols such as PCE? Cheers,

Re: [Pce] [Teas] [mpls] http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00

Italo, In your analogy how you can be sure that a better (faster) path from New Your, say, to Seattle is not via Canada offering wide and empty intra-country highways? Igor From: Italo Busi Sent: Friday, November 11, 2016 10:21 AM To: Igor Bryskin; Francesco Lazzeri; Fatai Zhang; Dieter

Re: [Pce] [Teas] [mpls] http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00

Italo Busi Sent: Thursday, November 10, 2016 6:38 PM To: Igor Bryskin; Francesco Lazzeri; Fatai Zhang; Dieter Beller Cc: m...@ietf.org; CCAMP (cc...@ietf.org); Scharf, Michael (Nokia - DE); pce@ietf.org; TEAS WG (t...@ietf.org) Subject: RE: [Teas] [mpls] http://tools.ietf.org/html/draft-busibel-teas

Re: [Pce] [mpls] http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00

Hi Fatai, Please, see in-line. Igor From: Fatai Zhang Sent: Thursday, November 10, 2016 1:13 AM To: Igor Bryskin; Francesco Lazzeri; Dieter Beller Cc: m...@ietf.org; CCAMP (cc...@ietf.org); Scharf, Michael (Nokia - DE); pce@ietf.org; TEAS WG (t...@ietf.org) Subject: 答复: [mpls] http

Re: [Pce] [mpls] http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00

...@ietf.org] On Behalf Of Francesco Lazzeri Sent: Thursday, November 10, 2016 5:02 AM To: Igor Bryskin; Fatai Zhang; Dieter Beller Cc: m...@ietf.org; CCAMP (cc...@ietf.org); Scharf, Michael (Nokia - DE); pce@ietf.org; TEAS WG (t...@ietf.org) Subject: Re: [Teas] [mpls] http://tools.ietf.org/html

Re: [Pce] [mpls] http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00

catered by the subordinate PNCs. And BTW said abstract TE topologies should be kept up-to-date by the PNCs (i.e. with updates, stateful). Igor From: Teas [mailto:teas-boun...@ietf.org] On Behalf Of Francesco Lazzeri Sent: Wednesday, November 09, 2016 12:42 PM To: Igor Bryskin; Fatai Zhang; Dieter

Re: [Pce] [mpls] http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00

Francesco, Please, see in-line. Igor From: Teas [mailto:teas-boun...@ietf.org] On Behalf Of Francesco Lazzeri Sent: Wednesday, November 09, 2016 10:27 AM To: Igor Bryskin; Fatai Zhang; Dieter Beller Cc: m...@ietf.org; CCAMP (cc...@ietf.org); Scharf, Michael (Nokia - DE); pce@ietf.org; TEAS

Re: [Pce] [mpls] http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00

#x27;s attributes (e.g. available bandwidth, SRLGs) are defined by the path. Igor From: Francesco Lazzeri [mailto:francesco.lazz...@ericsson.com] Sent: Wednesday, November 09, 2016 9:26 AM To: Igor Bryskin; Fatai Zhang; Dieter Beller Cc: m...@ietf.org; CCAMP (cc...@ietf.org); Scharf, Michael (Nok

Re: [Pce] [mpls] http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00

ies with asymmetrical blocking abstract TE nodes. Igor BR Francesco From: CCAMP [mailto:ccamp-boun...@ietf.org] On Behalf Of Igor Bryskin Sent: 04 November, 2016 7:12 PM To: Dieter Beller mailto:dieter.bel...@nokia.com>> Cc: m...@ietf.org<mailto:m...@ietf.org>; CCAMP (cc...@ietf.org&l

Re: [Pce] [mpls] http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00

that an uncommitted abstract TE link and COMPUTE_ONLY TE tunnel can represent (each in its own way) the same network potentiality Cheers, Igor From: Dieter Beller [mailto:dieter.bel...@nokia.com] Sent: Friday, November 04, 2016 1:49 PM To: Igor Bryskin Cc: Leeyoung; Scharf, Michael (Nokia - DE

Re: [Pce] [mpls] http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00

, Igor From: Beller, Dieter (Nokia - DE) [mailto:dieter.bel...@nokia.com] Sent: Thursday, November 03, 2016 6:27 PM To: Leeyoung Cc: Igor Bryskin; Scharf, Michael (Nokia - DE); Daniele Ceccarelli; CCAMP (cc...@ietf.org); pce@ietf.org; TEAS WG (t...@ietf.org); m...@ietf.org Subject: Re: [mpls] http

Re: [Pce] http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00

, November 03, 2016 4:12 PM To: Igor Bryskin; Scharf, Michael (Nokia - DE); Daniele Ceccarelli; CCAMP (cc...@ietf.org); pce@ietf.org; TEAS WG (t...@ietf.org); m...@ietf.org Subject: RE: http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00 Igor, When you say "state"

Re: [Pce] http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00

Young, >From the provider controller point of view COMPUTE_ONLY TE tunnels will have >exactly the same state as "normal" (COMPUTE_ADN_PROVISION) TE tunnels. Igor From: Leeyoung Sent: Thursday, November 03, 2016 3:42 PM To: Igor Bryskin; Scharf, Michael (Nokia - DE); Daniele C

Re: [Pce] http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00

@nokia.com] Sent: Thursday, November 03, 2016 3:17 PM To: Leeyoung; Daniele Ceccarelli; Igor Bryskin; CCAMP (cc...@ietf.org); pce@ietf.org; TEAS WG (t...@ietf.org); m...@ietf.org Subject: RE: http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00 Isn't the intention of definin

Re: [Pce] http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00

relli [mailto:daniele.ceccare...@ericsson.com] Sent: Thursday, November 03, 2016 10:19 AM To: Igor Bryskin; Scharf, Michael (Nokia - DE); CCAMP (cc...@ietf.org); pce@ietf.org; TEAS WG (t...@ietf.org); m...@ietf.org Subject: RE: http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00 Hi

Re: [Pce] http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00

IMHO we do not need both global and action RPC. The latter is more elegant but essentially the same as the former. Igor From: Teas [mailto:teas-boun...@ietf.org] On Behalf Of Belotti, Sergio (Nokia - IT) Sent: Thursday, November 03, 2016 10:25 AM To: Igor Bryskin; Scharf, Michael (Nokia - DE

Re: [Pce] http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00

path has stopped being feasible any longer or (ideally) a better path is available. Igor From: Daniele Ceccarelli [mailto:daniele.ceccare...@ericsson.com] Sent: Thursday, November 03, 2016 9:49 AM To: Scharf, Michael (Nokia - DE); Igor Bryskin; CCAMP (cc...@ietf.org); pce@ietf.org; TEAS WG (t

[Pce] http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00

Hi, >From the draft: 6.YANG Model for requesting Path Computation Work on extending the TE Tunnel YANG model to support the need to request path computation has recently started also in the context of the [TE-TUNNEL

[Pce] draft-zhang-ccamp-transport-yang-gap-analysis-01

Hi, In the 4.4. Function Summary and Related YANG Models, I read: +-+---+---+ |Path Comp. | Path Computation pre | |

Re: [Pce] FW: New Version Notification for draft-lee-pce-transporting-te-data-00.txt

Hi Ramon, With respect to incremental updates, with PCEP we have pretty much green field. For example, we can introduce a new PCE message "TE link update". The header of the message may have a flag indicating whether the contents of the message contain full TE link info (e.g. when the data is p

Re: [Pce] FW: New Version Notification for draft-lee-pce-transporting-te-data-00.txt

Hi, In my opinion the only advantage of BGP-LS vs. PCEP as a means of publishing of TE information is an ability to use reflectors to optimize the publishing said information onto more than one PCE. However, I can think of many alternatives to do such optimization in a BGP-free way. There are al

Re: [Pce] New Version Notification for draft-lee-pce-transporting-te-data-00.txt

I will. As I mentioned I like very much how FORCES does that. Igor -Original Message- From: Leeyoung [mailto:leeyo...@huawei.com] Sent: Wednesday, July 16, 2014 12:14 PM To: Igor Bryskin; Ramon Casellas; pce@ietf.org Subject: RE: [Pce] New Version Notification for draft-lee-pce

Re: [Pce] New Version Notification for draft-lee-pce-transporting-te-data-00.txt

Young, One important advantage of publishing TE information directly onto PCE(s) is the ability to do so in an incremental way. Consider, for example, a WDM LSP is being set up. The only change that is happening on each of the involved links is one lambda channel is changing its priority level

Re: [Pce] PCEP ERO

eers, Igor -Original Message- From: Eric Gray [mailto:eric.g...@ericsson.com] Sent: Wednesday, June 18, 2014 5:08 PM To: Igor Bryskin; adr...@olddog.co.uk; 'Zhangxian (Xian)'; 'Dhruv Dhody'; 'Julien Meuric' Cc: pce@ietf.org Subject: RE: [Pce] PCEP ERO Igor,

Re: [Pce] PCEP ERO

) and no flexibility must be left for decisions on transit nodes. Regards, Igor -Original Message- From: Eric Gray [mailto:eric.g...@ericsson.com] Sent: Wednesday, June 18, 2014 9:46 AM To: Igor Bryskin; adr...@olddog.co.uk; 'Zhangxian (Xian)'; 'Dhruv Dhody'; &#x

Re: [Pce] PCEP ERO

Adrian, Please see in-line. -Original Message- From: Adrian Farrel [mailto:adr...@olddog.co.uk] Sent: Wednesday, June 18, 2014 5:14 AM To: Igor Bryskin; 'Zhangxian (Xian)'; 'Dhruv Dhody'; 'Julien Meuric' Cc: pce@ietf.org Subject: RE: [Pce] PCEP ERO H

Re: [Pce] PCEP ERO

of ambiguities. Igor -Original Message- From: Zhangxian (Xian) [mailto:zhang.x...@huawei.com] Sent: Monday, June 16, 2014 10:17 PM To: Igor Bryskin; adr...@olddog.co.uk; 'Dhruv Dhody'; 'Julien Meuric' Cc: pce@ietf.org Subject: RE: [Pce] PCEP ERO Hi, Igor, I

Re: [Pce] PCEP ERO

Hello, You are right Julien and Adrian, this is a very old issue. One thing that has been missing IMO is a flag in a numbered/unnumbered link ERSO indicating whether the indicated side of the link is outbound or inbound wrt the path direction from its source to destination. The lack of said flag

[Pce] Control vs. computation

return the ownership back to control plane with the suggestion of their rerouting. Have you considered this option? Igor -Original Message- From: Jan Medved (jmedved) [mailto:jmed...@cisco.com] Sent: Friday, November 09, 2012 12:16 PM To: Igor Bryskin Cc: Oscar González de Dios; Julien

Re: [Pce] Questions about stateful PCE, relation to WG charter and opinion about stateful PCE

age- From: Jan Medved (jmedved) [mailto:jmed...@cisco.com] Sent: Friday, November 09, 2012 12:16 PM To: Igor Bryskin Cc: Oscar González de Dios; Julien Meuric; pce@ietf.org Subject: Re: [Pce] Questions about stateful PCE, relation to WG charter and opinion about stateful PCE Igor, On Nov 9, 2

Re: [Pce] Questions about stateful PCE, relation to WG charter and opinion about stateful PCE

I completely agree with Oscar. The statefull PCE as defined in RFC 4655 is clearly different from statefull PCE as defined in Ed's documents. The cleanest way to think about the latter IMO is a combination of stateless PCE and a network controller, which is a very reasonable combination, but is

Re: [Pce] PCE TED alternatives

Young, I am afraid you misunderstood one of my comments. Please, see in line. Cheers, Igor From: Young Lee To: pce@ietf.org Sent: Tuesday, May 5, 2009 5:49:06 PM Subject: [Pce] PCE TED alternatives Hi Pcers, The revision of the PCE TED alternatives (dra

Re: [Pce] Comments on draft-lee-pce-ted-alternatives-01.txt

Young. Please see my comments in line. Igor From: Young Lee To: Igor Bryskin ; Greg Bernstein Cc: pce@ietf.org Sent: Tuesday, April 28, 2009 4:21:45 PM Subject: RE: Comments on draft-lee-pce-ted-alternatives-01.txt Hi Igor, I have a couple of comments

Re: [Pce] Comments on draft-lee-pce-ted-alternatives-01.txt

or the TED management. Cheers, Igor From: Greg Bernstein To: Young Lee Cc: Igor Bryskin Sent: Thursday, April 16, 2009 5:37:08 PM Subject: Re: Comments on draft-lee-pce-ted-alternatives-01.txt Great to have help with the editing and concept development!

[Pce] Comments on draft-lee-pce-ted-alternatives-01.txt

Hi, Here is my comments on the draft “Alternative Approaches to Traffic Engineering Database Creation and Maintenance for Path Computation Elements” http://tools.ietf.org/id/draft-lee-pce-ted-alternatives-01.txt General comments. 1. Everywhere you say IGP you mean, I am sure, IGP-TE. It is