[spring] Spring protection - determining applicability

2020-08-02 Thread Joel M. Halpern
(WG Chair hat Off, this is merely a note from a slightly confused WG participant.) I have been reading the various repair drafts, and the various networks programming and service programming draft, and I am trying to figure out one aspect of the combination. How does a node that is doing som

[spring] Where a trigger for the protection switchover in SR-MPLS will come from?

2020-08-02 Thread Greg Mirsky
Dear All, after reviewing draft-hegde-spring-node-protection-for-sr-te-paths I've got a question to ask Where a trigger for the protection switchover in SR-MPLS will come from? The draft discusses methods to provide local link and node protection. Obviously, the protection is triggered by the detec

Re: [spring] Spring protection - determining applicability

2020-08-02 Thread Mach Chen
Hi Joel, I think this is a good point that may not be discussed in the past. And I also don't think there is a "can be bypassed" indication in the routing advertisement for now. IMHO, the information advertised by routing is neutral, such information (can or cannot be bypassed) is more path sp

[spring] I-D Action: draft-ietf-spring-sr-yang-19.txt

2020-08-02 Thread internet-drafts
A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Source Packet Routing in Networking WG of the IETF. Title : YANG Data Model for Segment Routing Authors : Stephane Litkowski

Re: [spring] Spring protection - determining applicability

2020-08-02 Thread Alexander Vainshtein
Mach, Joel and all, I think that in most cases: 1. There is clear differentiation between "topological" and "service" instructions in SID advertisements. E.g.: o IGP Prefix Node SIDs IGP Adj-SIDs (identified as such in the corresponding IGP advertisements) represent topological instr