Dear Authors,

I and my co-author are currently working on SDN& NFV operation security related 
area, and developing a draft in SDN Research Group. We wanted to understand 
from you on certain aspects of i2nsf problem statement and its intended 
coverage, thus writing this mail.

>From the draft (draft-ietf-i2nsf-problem-and-use-cases-04), we understood that 
>you have acknowledged the challenges associated to scenarios where NSFs being 
>present in heterogeneous administrative domains, and also have considered 
>developing a dynamic key distribution mechanism to NSFs. In this context, we 
>have the following queries -


*         In certain scenarios, dynamic key distribution appears to be a 
requirement for endpoints and other (non-security) functions as well. Do you 
intend to develop the mechanism in a generic fashion that can be leveraged by 
other entities as well?

*         Specially for multi-domain scenarios, dynamic key distribution may 
need some pre-cursory requirements to comply with, these are mostly around 
setting up inter-domain trust and certificate chaining. Do you consider these 
to be pre-provisioned, before the i2nsf specified mechanism starts off?

We'll look forward to your response on this.

Warm Regards,
Saurabh



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