Re: [Lsr] Second Working Last Call for draft-ietf-lsr-flex-algo

2021-06-17 Thread bruno.decraene
OK. Crystal clear. Thanks Peter. --Bruno > -Original Message- > From: Peter Psenak [mailto:ppse...@cisco.com] > Sent: Thursday, June 17, 2021 4:59 PM > To: DECRAENE Bruno INNOV/NET ; Acee Lindem > (acee) ; lsr@ietf.org > Cc: lsr-...@ietf.org; Christian Hopps ; > draft-ietf-lsr-flex- > a

Re: [Lsr] Proposed Errata for RFCs 8919/8920

2021-06-17 Thread Les Ginsberg (ginsberg)
Shraddha - New text will be added to RFC 8919 Section 4.2 immediately after the existing text: "If the SABM or UDABM Length in the Application Identifier Bit Mask is greater than 8, the entire sub-TLV MUST be ignored." Additional Text: "When SABM or UDABM Length is non-zero and the L-flag i

Re: [Lsr] Second Working Last Call for draft-ietf-lsr-flex-algo

2021-06-17 Thread Peter Psenak
Hi Bruno, On 17/06/2021 16:12, bruno.decra...@orange.com wrote: Hi, I have a question/comment. I think that we all agree that FlexAlgo/Link State computation requires that all node use the same topology to compute their SPF. Otherwise, permanent forwarding loops are probable. https://datat

Re: [Lsr] Proposed Errata for RFCs 8919/8920

2021-06-17 Thread Peter Psenak
Hi Rudy, please see inline: On 17/06/2021 15:38, Selderslaghs, Rudy (Nokia - BE/Antwerp) wrote: Hi Les, The question remains whether an ISIS Appl-Spec-SRLG TLV with SABML 0 and UDABML 0 means that it is valid for all applications or not. This is currently not specified in RFC8919. Secondly

Re: [Lsr] Second Working Last Call for draft-ietf-lsr-flex-algo

2021-06-17 Thread bruno.decraene
Hi, I have a question/comment. I think that we all agree that FlexAlgo/Link State computation requires that all node use the same topology to compute their SPF. Otherwise, permanent forwarding loops are probable. https://datatracker.ietf.org/doc/html/draft-ietf-lsr-flex-algo-16#section-12 say

Re: [Lsr] Proposed Errata for RFCs 8919/8920

2021-06-17 Thread Selderslaghs, Rudy (Nokia - BE/Antwerp)
Hi Les, The question remains whether an ISIS Appl-Spec-SRLG TLV with SABML 0 and UDABML 0 means that it is valid for all applications or not. This is currently not specified in RFC8919. Secondly the approach to handle ISIS Appl-Spec-SRLG TLVs independently from ASLA sub-TLVs in the context of o