Ahmed and all,Two points:1. From my POV your description of forwarding behavior 
when the link S-->F fails is incomplete: the top label in the stack may be 
poppoed, but it is not "forgotten", and the next exposed label is looked up by 
S in the context label space that is F-specific. I.e., if S has two downstream 
neighbors, F and G, and both links S-->F and S-->G fail, lookup of the next 
exposed label for packets with ToS being S label for F and S label for G will 
yield different results.
2. From my POV draft-hegde-spring-node-protection-for-sr-te-paths provides 
roughly equjvalent behavior, but it is much more clear when it comes to 
describibg the DP mechanisms involved. (IMHO and FWIW calling a spae by its 
name is greatly preferable in most cases.)
My 2c


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  On Tue, Nov 28, 2017 at 6:04, Ahmed Bashandy (bashandy)<[email protected]> 
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