Re: KHALED Routing Protocol (KRP).

[Dave Cridland <[e-mail]>]

On 26 April 2017 at 00:27, Khaled Omar <[e-mail]> wrote:
> https://datatracker.ietf.org/doc/draft-omar-krp/

I like this idea, but I think it's sufficiently similar to the
original aim of EGP/BGP that it's already been proven impractical, and
moving to it would also be impractical. I am not a routing expert, so
I'll cheerfully wait being shot down by others, but this is my
rationale:

The reason why we have large routing tables within BGP routers is
mostly that ASNs now consist of many more prefixes than were
originally expected, and so the prefixes do not aggregate well enough.

This proposal involves, essentially, renumbering the entire internet
(which is very difficult in practical terms), such that aggregation
then works more efficiently. However, history has shown that while
this would work for the short term, it would require continuous
renumbering in response to many factors (new addresses, corporate
mergers, etc) in order to maintain its efficiency.

Since we have not solved renumbering very effectively in the first
place, I feel that this is not worth working on.

I would, however, suggest that addressing renumbering would be an
excellent use of your time. A viable solution to renumbering large
public networks would mean that the BGP table would shrink, by the
same logic as above.

That is, if we had a method for renumbering continuously, then it
would improve the efficiency of BGP as well, to almost the same
extent, without incurring the initial internet-wide renumbering
effort.

Finally, I would note that while routing tables are large, the
internet still functions - this may not be the best use of your time
therefore.

Dave.