[c-nsp] Growing BGP tables

[David J. Hughes]

> The only problem is that aside from being a good netizen, there is no
> incentive for one to do so. If one upstream uses this method but the
> other doesn't, guess which transit provider is going to carry all the
> traffic for said /24s in this example?

Not sure if I'd put this down to being a good netizen.  We currently 
have the option to drop any prefixes from the global table that we 
like.  I can quite easily drop 202.0.0.0/8 from the tables we receive.  
In fact I can choose any arbitrary block of addresses and drop their 
prefixes.  Doing so would be foolish as I'd make part of the Internet 
unreachable from my network.  Keeping those blocks reachable doesn't 
make me a good netizen, it just makes me sane.  Dropping them would be 
pure insanity (and commercial suicide).

Now, change the above and substitute in "0.0.0.0/0 ge /24" rather than 
"202.0.0.0/8" and I don't think we've added any sanity.  We've just 
picked an arbitrary range of prefixes, dropped them from our view of 
the world, and broken connectivity to a whole bunch of legitimate 
networks.  That would make me a bad netizen (and IMHO a nut case ;-)


David
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