Hello Greg,

Answers inline.

Sent from my iPhone

> On Apr 1, 2014, at 9:34 PM, Gregory Mirsky <[email protected]> 
> wrote:
> 
> Dear Authors, et. al,
> please find my comments and questions to the latest version below. Thank you 
> for your kind consideration.
> ·         Would you agree that use case document is more appropriate on 
> Informational rather than Standard track

Indeed. I'll change it for -02.

> ·         Introduction, second para
> o   Precomputation and instantiation of protection/backup paths is 
> characteristic of all protection mechanisms, local, segment and end-to-end.
> o   “The term "protection" is often used as a synonym for FRR.” I think that 
> it is “local protection” that is being equated and used interchangeably with 
> FRR. End-to-end protection, whether linear or ring, equally supports 10msec 
> fault detection as fault detection latency is not characteristic of 
> protection mechanism but of interval used in continuity check OAM

Indeed. I'll fix it in next rev.

> ·         Section 3
> o   first sentence s/in/of/

Thanks for the catch.

> o   Does local protection in SPRING network domain takes into consideration 
> SID labels. If SID labels are not being considered when pre-calculating 
> backup tunnels then it is possible that after the switchover end-to-end path 
> fails. On the other hand, if SID labels being considered, then, in general 
> case, intermediate node must maintain path information, which is not as 
> Segment Routing paradigm being defined at this time.
>  

Well now that the draft is not about solutions or specifics of SR, this is not 
a problem anymore :) 

More seriously, yes, in SR, you have to pay attention to label allocation when 
installing your failover entries in the FIB. However I do not see why it leads 
to having intermediate nodes maintain path information. 
Can you expand on this part of your comment?

Cheers,

Pierre.

> Regards,
>                 Greg
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