Re: [spring] Is TI-LFA compatible with the default SR algorithm?

Stewart, Lots of thanks for the clarification. Coming back to the TI-LFA draft, I think that it should explicitly state that in the case of Prefix-SIDs it is applicable to Prefix-SIDs associated with the strict SPF algorithm but does not guarantee any results in the case of Prefix-SIDs associ

Re: [spring] Is TI-LFA compatible with the default SR algorithm?

On 14/06/2018 13:45, Alexander Vainshtein wrote: Please note that RFC 5286 explicitly states that it is only applicable to intra-domain routing only with OSPF or IS-IS as IGP. It does not mention the possibility of local policies overriding shortest path routing provided by these protocols

Re: [spring] Is TI-LFA compatible with the default SR algorithm?

Stewart, Lots of thanks for a prompt and highly meaningful response. Regards, Sasha Office: +972-39266302 Cell: +972-549266302 Email: alexander.vainsht...@ecitele.com From: Stewart Bryant [mailto:stewart.bry...@gmail.com] Sent: Thursday, June 14, 2018 3:31 PM To: stephane.litkow...@orange

Re: [spring] Is TI-LFA compatible with the default SR algorithm?

Stephane, The default algorithm for Prefix-SIDs is defined in Section 3.1.1 of the Segment Routing Architecture draft as following (the important text is highlighted): o "Shortest Path": this algorithm is the default behavior

Re: [spring] Is TI-LFA compatible with the default SR algorithm?

RFC5714 was written when we were focused on routing in base along normal Dijkstra shortest paths. As policy and flexible algorithms become prevalent we need to specify that any RFC5714 action is compliant to the policies and intended algorithms along the entirety of its path. We need to thin

Re: [spring] Updating the SPRING WG Charter

Hi Jie, While I look forward to reviewing the draft, at the moment of writing the charter no such details were available. At the moment we do not know if this would be an architecturally correct option to adopt in segment routing; what type of complexity, statefulness and scalability concerns i

Re: [spring] Is TI-LFA compatible with the default SR algorithm?

Hi Sasha, Could you elaborate on :" I strongly suspect that it is not so, and that these mechanisms are only compatible with the Strict-SPF. (Actually, I can provide an example that confirms this suspicion.)" ? Thanks, From: spring [mailto:spring-boun...@ietf.org] On Behalf Of Alexander Vains