Re: [Lsr] A question about draft-ietf-lsr-flex-algo
Hi Zhibo, n 03/06/2020 14:40, Huzhibo wrote: Hi Alexander, Peter: Thank you very much，After I read the WG alias, I still have a lot of doubts, can we calculate the disjoint path by exclude SRLG in flexalgo? In fact, unless you previously defined two disjoint planes using SRLG, you cannot guarantee that different FlexAlgo can calculate disjoint paths. the point is that if you did provide such path, flex-algo can calculate them. As I mentioned earlier, this use case came from the field, so people out there apparently have such topologies and SRLG assignments. At the end of the day, use of any of the FAD constraints is optional. Look at them as lego blocks - if they fit to your network, use them, if they don't, leave them alone. thanks, Peter Thanks Zhibo Hu *From:*Alexander Vainshtein [mailto:alexander.vainsht...@ecitele.com] *Sent:* Wednesday, June 3, 2020 8:19 PM *To:* Huzhibo ; Peter Psenak (ppsenak) *Cc:* lsr@ietf.org; draft-ietf-lsr-flex-a...@ietf.org *Subject:* RE: A question about draft-ietf-lsr-flex-algo Hi Zhibo Hu, Welcome to the club - I have already asked the same question and got a response from Peter. You can find the relevant email thread here <https://mailarchive.ietf.org/arch/msg/spring/wvowYz7mOwR9f6je46qPV_pD9pU/>. My 2c, Sasha Office: +972-39266302 Cell: +972-549266302 Email: alexander.vainsht...@ecitele.com <mailto:alexander.vainsht...@ecitele.com> *From:*Lsr mailto:lsr-boun...@ietf.org>> *On Behalf Of *Huzhibo *Sent:* Wednesday, June 3, 2020 3:07 PM *To:* Peter Psenak (ppsenak) mailto:ppse...@cisco.com>> *Cc:* lsr@ietf.org <mailto:lsr@ietf.org>; draft-ietf-lsr-flex-a...@ietf.org <mailto:draft-ietf-lsr-flex-a...@ietf.org> *Subject:* [Lsr] A question about draft-ietf-lsr-flex-algo Hi Peter: I noticed that draft-ietf-lsr-flex-algo-07 adds exclude SRLG TLV. SRLG defines a group of risk-sharing link groups. It is generally used to prevent the primary and standby paths from passing the same risk-sharing link group .I don't know why a group of SRLG links should be excluded from the FlexAlgo calculation. What is its usecase? Thanks Zhibo Hu ___ This e-mail message is intended for the recipient only and contains information which is CONFIDENTIAL and which may be proprietary to ECI Telecom. If you have received this transmission in error, please inform us by e-mail, phone or fax, and then delete the original and all copies thereof. ___ ___ Lsr mailing list Lsr@ietf.org https://www.ietf.org/mailman/listinfo/lsr
Re: [Lsr] A question about draft-ietf-lsr-flex-algo
Hi Alexander, Peter: Thank you very much，After I read the WG alias, I still have a lot of doubts, can we calculate the disjoint path by exclude SRLG in flexalgo? In fact, unless you previously defined two disjoint planes using SRLG, you cannot guarantee that different FlexAlgo can calculate disjoint paths. Thanks Zhibo Hu From: Alexander Vainshtein [mailto:alexander.vainsht...@ecitele.com] Sent: Wednesday, June 3, 2020 8:19 PM To: Huzhibo ; Peter Psenak (ppsenak) Cc: lsr@ietf.org; draft-ietf-lsr-flex-a...@ietf.org Subject: RE: A question about draft-ietf-lsr-flex-algo Hi Zhibo Hu, Welcome to the club - I have already asked the same question and got a response from Peter. You can find the relevant email thread here<https://mailarchive.ietf.org/arch/msg/spring/wvowYz7mOwR9f6je46qPV_pD9pU/>. My 2c, Sasha Office: +972-39266302 Cell: +972-549266302 Email: alexander.vainsht...@ecitele.com<mailto:alexander.vainsht...@ecitele.com> From: Lsr mailto:lsr-boun...@ietf.org>> On Behalf Of Huzhibo Sent: Wednesday, June 3, 2020 3:07 PM To: Peter Psenak (ppsenak) mailto:ppse...@cisco.com>> Cc: lsr@ietf.org<mailto:lsr@ietf.org>; draft-ietf-lsr-flex-a...@ietf.org<mailto:draft-ietf-lsr-flex-a...@ietf.org> Subject: [Lsr] A question about draft-ietf-lsr-flex-algo Hi Peter: I noticed that draft-ietf-lsr-flex-algo-07 adds exclude SRLG TLV. SRLG defines a group of risk-sharing link groups. It is generally used to prevent the primary and standby paths from passing the same risk-sharing link group .I don't know why a group of SRLG links should be excluded from the FlexAlgo calculation. What is its usecase? Thanks Zhibo Hu ___ This e-mail message is intended for the recipient only and contains information which is CONFIDENTIAL and which may be proprietary to ECI Telecom. If you have received this transmission in error, please inform us by e-mail, phone or fax, and then delete the original and all copies thereof. ___ ___ Lsr mailing list Lsr@ietf.org https://www.ietf.org/mailman/listinfo/lsr
Re: [Lsr] A question about draft-ietf-lsr-flex-algo
Hi Zhibo Hu, Welcome to the club - I have already asked the same question and got a response from Peter. You can find the relevant email thread here<https://mailarchive.ietf.org/arch/msg/spring/wvowYz7mOwR9f6je46qPV_pD9pU/>. My 2c, Sasha Office: +972-39266302 Cell: +972-549266302 Email: alexander.vainsht...@ecitele.com From: Lsr On Behalf Of Huzhibo Sent: Wednesday, June 3, 2020 3:07 PM To: Peter Psenak (ppsenak) Cc: lsr@ietf.org; draft-ietf-lsr-flex-a...@ietf.org Subject: [Lsr] A question about draft-ietf-lsr-flex-algo Hi Peter: I noticed that draft-ietf-lsr-flex-algo-07 adds exclude SRLG TLV. SRLG defines a group of risk-sharing link groups. It is generally used to prevent the primary and standby paths from passing the same risk-sharing link group .I don't know why a group of SRLG links should be excluded from the FlexAlgo calculation. What is its usecase? Thanks Zhibo Hu ___ This e-mail message is intended for the recipient only and contains information which is CONFIDENTIAL and which may be proprietary to ECI Telecom. If you have received this transmission in error, please inform us by e-mail, phone or fax, and then delete the original and all copies thereof. __ Lsr mailing list Lsr@ietf.org https://www.ietf.org/mailman/listinfo/lsr
[Lsr] A question about draft-ietf-lsr-flex-algo
Hi Peter: I noticed that draft-ietf-lsr-flex-algo-07 adds exclude SRLG TLV. SRLG defines a group of risk-sharing link groups. It is generally used to prevent the primary and standby paths from passing the same risk-sharing link group .I don't know why a group of SRLG links should be excluded from the FlexAlgo calculation. What is its usecase? Thanks Zhibo Hu ___ Lsr mailing list Lsr@ietf.org https://www.ietf.org/mailman/listinfo/lsr
