Speaking as WG member: Authors,
I have comments and questions on the draft – many of them that I have raised before. 1. If you use the standard advertisements and overload the prefix-originator information, all the routers in the domain will need to support it and you will have a fork lift upgrade. Otherwise, the ABRs which don’t advertise a prefix unreachable will actually attract traffic from down level routers. I’ve raised this several times in the past. 2. How do you know what prefixes to protect with this PUA mechanism? Is it any prefix you’ve seen in the past? What if the prefix is actually taken out of service? What if it was a misconfiguration? What if the prefix is unreachable when the ABR IGP is started? 3. The forwarding plane behavior is non-standard? How does it work? This is clearly under specified. 4. This is somewhat minor compared to the other comments, in section 6 both conditions 1 and 2 can be true at the same time. In the event the other comments are resolved, this section needs some work. Thanks, Acee
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