Also, if you'll review the messages to which you're responding, you'll
note that the customer is often an ISP with customers of its own so
there are far too many ranges to handle manually.
An "ISP" who does not understand and use BGP is probably not serious.
It must be nice to live in a world where you can turn away customers
who pay a lot of money, just because they're not serious enough.
The ISP business is not really a high profit margin one. Some customers
are a loss. The tendency of wanting to multihome without running a routing
protocol is a good indicator of lower profit margin. If for nothing else
then for the increased support load.
It must be nice to live in a world where you know the profit margins of
American ISPs better than they do.
By the way, not all of the multi-homed customers we're talking about are
small ISPs, although some are.
Regards,
John Levine, johnl(_at_)taugh(_dot_)com, Taughannock Networks, Trumansburg NY
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