@1:
Q: What does ROA look like?
Since ROA means which ASes are allowed for originating routes to some specific address spaces. So I think there maybe many ASes corresponding to a specific address space.
A: No, actually the format of ROA is like this:
----------------------------------
| AS1 --> 16.1.0.0/16 |
| AS1 --> 16.2.0.0/16 |
----------------------------------
Note that a ROA contains only a single AS number.
@2:
key points & (QA) about RPKI
原文:http://www.cnblogs.com/lxw0109/p/RPKI.html