This document proposes a hierarchical and shared forwarding chain  organization that allows traffic to be restored to pre-calculated  alternative equal cost primary path or backup path in a time period that does not depend on the number of BGP prefixes.

Comment/Question to the authors:
1- In the document states: "The proposed technique achieves prefix independent convergence while ensuring incremental deployment, complete automation, and zero management and provisioning effort."
What is the scope involved in zero management? It would be nice if the text explains how the technique achieves the zero management and the provisioning efforts. 
2- "it benefits from all its benefits" --> it would be nice to mention some of the benefits in brakets. 
3- Is this technique not affected by any type of bpg prefix hijacking attack?
4- If there is no privacy issues I would states that explicitly. 

Thank you for this document,

Ines.