Re: [CCAMP] One comment on draft-zhang-ccamp-flexible-grid-ospf-ext
"Gabriele Maria Galimberti (ggalimbe)" <ggalimbe@cisco.com> Wed, 30 April 2014 11:37 UTC
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From: "Gabriele Maria Galimberti (ggalimbe)" <ggalimbe@cisco.com>
To: "Zhangxian (Xian)" <zhang.xian@huawei.com>, "wang.lei131@zte.com.cn" <wang.lei131@zte.com.cn>
Thread-Topic: [CCAMP] One comment on draft-zhang-ccamp-flexible-grid-ospf-ext
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Date: Wed, 30 Apr 2014 11:37:29 +0000
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Subject: Re: [CCAMP] One comment on draft-zhang-ccamp-flexible-grid-ospf-ext
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Thanks a lot Xian, Regards, Gabriele [http://www.cisco.com/swa/i/logo.gif] Gabriele Galimberti Technical Leader Cisco Photonics Srl Via Philips, 12 20900 - Monza (MI) Italy www.cisco.com/global/IT/<http://www.cisco.com/global/IT/> ggalimbe@cisco.com<mailto:ggalimbe@cisco.com> Phone :+39 039 2091462 Mobile :+39 335 7481947 Fax :+39 039 2092049 From: Xian Zhang <zhang.xian@huawei.com<mailto:zhang.xian@huawei.com>> Date: Wednesday, April 30, 2014 10:36 AM To: Gabriele Galimberti <ggalimbe@cisco.com<mailto:ggalimbe@cisco.com>>, "wang.lei131@zte.com.cn<mailto:wang.lei131@zte.com.cn>" <wang.lei131@zte.com.cn<mailto:wang.lei131@zte.com.cn>> Cc: "ccamp@ietf.org<mailto:ccamp@ietf.org>" <ccamp@ietf.org<mailto:ccamp@ietf.org>> Subject: RE: [CCAMP] One comment on draft-zhang-ccamp-flexible-grid-ospf-ext Hi, Lei, Gabriele, Thank you for the comments. Please see my reply inline: From: Gabriele Maria Galimberti (ggalimbe) [mailto:ggalimbe@cisco.com] Sent: 2014年4月30日 15:42 To: wang.lei131@zte.com.cn<mailto:wang.lei131@zte.com.cn>; ccamp@ietf.org<mailto:ccamp@ietf.org>; Zhangxian (Xian) Subject: Re: [CCAMP] One comment on draft-zhang-ccamp-flexible-grid-ospf-ext I agree with LeWang, Xian: I think Lei has made a good point, i.e., CFG and SWG currently has a fixed relationship. Will remove one field (i.e., CFG) to avoid carrying duplicated information in the next rotation of the draft. If anyone has different opinions, please speak up. I'd also add that the MaxWidth field must be more than 8 bits (e.g. 16 bits). This is to align this parameter to the recent ITU liaison reply on m value range. Xian: this point has been raised before and has been agreed with (see: http://www.ietf.org/mail-archive/web/ccamp/current/msg15770.html). This will be reflected in the next update of this draft. Cheers, Xian Best Regards, Gabriele [http://www.cisco.com/swa/i/logo.gif] Gabriele Galimberti Technical Leader Cisco Photonics Srl Via Philips, 12 20900 - Monza (MI) Italy www.cisco.com/global/IT/<http://www.cisco.com/global/IT/> ggalimbe@cisco.com<mailto:ggalimbe@cisco.com> Phone :+39 039 2091462 Mobile :+39 335 7481947 Fax :+39 039 2092049 From: "wang.lei131@zte.com.cn<mailto:wang.lei131@zte.com.cn>" <wang.lei131@zte.com.cn<mailto:wang.lei131@zte.com.cn>> Date: Wednesday, April 30, 2014 9:12 AM To: "ccamp@ietf.org<mailto:ccamp@ietf.org>" <ccamp@ietf.org<mailto:ccamp@ietf.org>>, Xian Zhang <zhang.xian@huawei.com<mailto:zhang.xian@huawei.com>> Subject: [CCAMP] One comment on draft-zhang-ccamp-flexible-grid-ospf-ext Hi, Xian and CCAMPers I have one comment on draft-zhang-ccamp-flexible-grid-ospf-ext: In section 4.3, page 7, the encoding of "Port Label Restriction sub-TLV" is listed as follows. 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | MatrixID | RstType = TBA | Reserved | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | C.F.G | S.W.G | Min Width | Max Width | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ In my opinion, it is not necessary to put the field "C.F.G" into this TLV, because that: C.F.G could be deduced from S.W.G (C.F.G = S.W.G / 2). Would anyone give one example where C.F.G != S.W.G / 2 ? -------------------------------------------- LeiWang ZTE Bearer Network Product Pre_research Department, Wireline R&D Insititute Cell phone:+86 13811440067 Email: wang.lei131@zte.com.cn<mailto:wang.lei131@zte.com.cn> hechen0001@gmail.com<mailto:hechen0001@gmail.com> leiw@tsinghua.edu.cn<mailto:leiw@tsinghua.edu.cn> ----------------------------------------------
- [CCAMP] One comment on draft-zhang-ccamp-flexible… wang.lei131
- Re: [CCAMP] One comment on draft-zhang-ccamp-flex… Gabriele Maria Galimberti (ggalimbe)
- Re: [CCAMP] One comment on draft-zhang-ccamp-flex… Zhangxian (Xian)
- Re: [CCAMP] One comment on draft-zhang-ccamp-flex… Ramon Casellas
- Re: [CCAMP] One comment on draft-zhang-ccamp-flex… Jonas Mårtensson
- Re: [CCAMP] One comment on draft-zhang-ccamp-flex… Gabriele Maria Galimberti (ggalimbe)