Re: [Lsr] [yang-doctors] Yangdoctors early review of draft-ietf-ospf-sr-yang-20

2023-04-14 Thread Acee Lindem
Hi Reshad, Thanks for the review. You raised some very good points and especially the point about the OSPFv3 MPLS encoding being missing. We may delay the document until these are added. However, we will address your comments in the next revision of the document. > On Apr 3, 2023, at 23:18,

Re: [Lsr] IETF-116 LSR - IGP extensions for Advertising Offset for Flex-Algorithm

2023-04-14 Thread Les Ginsberg (ginsberg)
Louis - Sorry, one more response from me. Your responses below, especially regarding the use of algorithm specific adj-sids in TI-LFA, I could summarize as saying: "Yes - in a partial deployment scenario - you would not have full functionality e.g., legacy nodes would be unable to determine

Re: [Lsr] IETF-116 LSR - IGP extensions for Advertising Offset forFlex-Algorithm

2023-04-14 Thread Peter Psenak
Louis, On 14/04/2023 16:26, Louis Chan wrote: Hi Peter (plus all), I do not think emotional statement could help. We should stick to facts and evidence, and be professional. the fact is that with 9k LSP size and 255 LSPs, where each algo ADJ-SID takes up to 9 bytes, you have enough space

Re: [Lsr] IETF-116 LSR - IGP extensions for Advertising Offset forFlex-Algorithm

2023-04-14 Thread Louis Chan
Hi Peter (plus all), I do not think emotional statement could help. We should stick to facts and evidence, and be professional. Please calm down, and enjoy your weekend first. We should have a drink when we meet. But there are questions in my mind. I must apologize being a bit blunt in

Re: [Lsr] IETF-116 LSR - IGP extensions for Advertising Offset forFlex-Algorithm

2023-04-14 Thread Peter Psenak
Weiqiang, On 14/04/2023 13:36, Weiqiang Cheng wrote: Hi Peter, Your information about the deployment is good. It is clear there are two different application scenarios: 1. For the operators who only need few algos, the current solution is good enough for them, they just need keep it and don't

Re: [Lsr] IETF-116 LSR - IGP extensions for Advertising Offset forFlex-Algorithm

2023-04-14 Thread Weiqiang Cheng
Hi Peter, Your information about the deployment is good. It is clear there are two different application scenarios: 1. For the operators who only need few algos, the current solution is good enough for them, they just need keep it and don't need to worry about the updates. 2. For the operators

Re: [Lsr] IETF-116 LSR - IGP extensions for Advertising Offset forFlex-Algorithm

2023-04-14 Thread Peter Psenak
Weiqiang, On 14/04/2023 12:28, Weiqiang Cheng wrote: Hi Peter, As far as I know, Flex Algo is not really deployed by operators by now, mainly because of the scalability concerns. I know bunch that deployed it and are happy with it. They needed few algos, which is what I consider the right

Re: [Lsr] IETF-116 LSR - IGP extensions for Advertising Offset forFlex-Algorithm

2023-04-14 Thread Weiqiang Cheng
Hi Peter, As far as I know, Flex Algo is not really deployed by operators by now, mainly because of the scalability concerns. In fact, the Luois team and our team did not know each other before. However, we proposed solutions for MPLS-SR and SRv6 respectively almost at the same time. So you

Re: [Lsr] IETF-116 LSR - IGP extensions for Advertising Offset forFlex-Algorithm

2023-04-14 Thread Peter Psenak
Louis, On 14/04/2023 10:25, Louis Chan wrote: Hi Peter, I do not think we should divert the focus. It is about efficiency in packing information. trying to change the way the protocol encodes existing data is something that we should not do, unless there is a blocking issue that does not

Re: [Lsr] IETF-116 LSR - IGP extensions for Advertising Offset forFlex-Algorithm

2023-04-14 Thread Louis Chan
Hi Peter, I do not think we should divert the focus. It is about efficiency in packing information. If some important info is required to pass as "necessary evil", then it should. Actually, I am looking forward to applying similar method for other metric or ASLA, proposed by someone, and not

Re: [Lsr] IETF-116 LSR - IGP extensions for Advertising Offset forFlex-Algorithm

2023-04-14 Thread Peter Psenak
Louis, On 14/04/2023 07:38, Louis Chan wrote: Hi Peter, For Adj-sid and additional TE requirement, I am not sure what you refer to. TE requirement or metric requirement? If it is metric related, we have ASLA draft to address some TE related problem. (To me, to reduce ASLA advertisement is

Re: [Lsr] IETF-116 LSR - IGP extensions for Advertising Offset for Flex-Algorithm

2023-04-14 Thread Louis Chan
Hi Les, Thanks for the questions. Really appreciate that. Questions are the good way to achieve mutual understanding, and it gives me a chance to re-think what to do next. Please see inline [lc4] /louis -Original Message- From: Les Ginsberg (ginsberg) Sent: Thursday, April 13, 2023