[Lsr] draft-ietf-lsr-flex-algo

2021-09-09 Thread bruno.decraene
Hi authors, all, I have a question related to the two-way connectivity check performed on each link during the FlexAlgo SPF. Is this point documented in the document? I could not find it so far. If not, what is the (reverse connectivity) check that need to be performed on the reverse link? A p

Re: [Lsr] draft-ietf-lsr-flex-algo

2021-09-09 Thread Peter Psenak
Hi Bruno, On 09/09/2021 14:43, bruno.decra...@orange.com wrote: Hi authors, all, I have a question related to the two-way connectivity check performed on each link during the FlexAlgo SPF. flex-algo is defined as set of: (a) calculation-type (b) metric-type, (c) a set of constraints Two wa

Re: [Lsr] draft-ietf-lsr-flex-algo

2021-09-09 Thread bruno.decraene
Hi Peter, Thanks for your answer. Please see inline > -Original Message- > From: Peter Psenak [mailto:ppse...@cisco.com] > Sent: Thursday, September 9, 2021 2:52 PM > To: DECRAENE Bruno INNOV/NET ; lsr@ietf.org > Subject: Re: [Lsr] draft-ietf-lsr-flex-algo > > Hi Bruno, > > On 09/09/202

Re: [Lsr] draft-ietf-lsr-flex-algo

2021-09-09 Thread Peter Psenak
Hi Bruno, On 09/09/2021 15:27, bruno.decra...@orange.com wrote: Hi Peter, Thanks for your answer. Please see inline -Original Message- From: Peter Psenak [mailto:ppse...@cisco.com] Sent: Thursday, September 9, 2021 2:52 PM To: DECRAENE Bruno INNOV/NET ; lsr@ietf.org Subject: Re: [Lsr]

Re: [Lsr] draft-ietf-lsr-flex-algo

2021-09-09 Thread bruno.decraene
> From: Peter Psenak [mailto:ppse...@cisco.com] > > Hi Bruno, > > On 09/09/2021 15:27, bruno.decra...@orange.com wrote: > > Hi Peter, > > > > Thanks for your answer. > > Please see inline > > > >> -Original Message- > >> From: Peter Psenak [mailto:ppse...@cisco.com] > >> Sent: Thursday, S

Re: [Lsr] draft-ietf-lsr-flex-algo

2021-09-09 Thread Linda Dunbar
Peter, draft-ietf-lsr-flex-algo-17 currently has registered Algorithm Types 128-255 with IANA. If we need to add a new Algorithm Type, e.g. using a weighted value of a Stub Link property in calculating the shortest path, do we need to use one of the value within 128-255 or need to ask IANA to

Re: [Lsr] draft-ietf-lsr-flex-algo

2021-09-09 Thread Tony Li
Hi Linda, Algorithm types 128-255 are intended to be used with the constraints that are advertised inside of a FlexAlgo definition. I think what you’re proposing is not captured there, so you would need to have a defined algorithm from 2–127. Tony > On Sep 9, 2021, at 9:51 AM, Linda Dunbar

Re: [Lsr] draft-ietf-lsr-flex-algo

2021-09-09 Thread Peter Psenak
Hi Linda, Tony, On 09/09/2021 19:37, Tony Li wrote: Hi Linda, Algorithm types 128-255 are intended to be used with the constraints that are advertised inside of a FlexAlgo definition. I think what you’re proposing is not captured there, so you would need to have a defined algorithm from

Re: [Lsr] draft-ietf-lsr-flex-algo

2021-09-09 Thread Linda Dunbar
Peter and Tony, Thank you very much for the explanation. Is it necessary to register with IANA on individual Flex-Algo value (a value between 128-255)? Say there are 5 properties associated with the Stub link, one Flex algo uses weighted values of 4 properties, another Flex Algo uses Weighted

Re: [Lsr] draft-ietf-lsr-flex-algo

2021-09-09 Thread Peter Psenak
Linda, On 09/09/2021 22:17, Linda Dunbar wrote: Peter and Tony, Thank you very much for the explanation. Is it necessary to register with IANA on individual Flex-Algo value (a value between 128-255)? no. Say there are 5 properties associated with the Stub link, one Flex algo uses weight