On Thu, Jan 9, 2014 at 2:00 PM, John R Levine <johnl(_at_)taugh(_dot_)com>
wrote:
There are pathological (aka: stupid) cases of multihomed to 2 isps,
getting static-routing of each isp's PA space on only that one ISP...
and default routing up both pipes... but really that's just broken and
dumb, so getting customers to fix this by filtering is a fine answer.
As I said in the original message, calling the customers stupid is not
useful.
right, my assumption is that some marketting/pr/customer-service
person would actually tell the customers a form of: "Hey, do you like
reliability? we do to... we also like cleaner internets, we're going
to filter outbound traffic from you for the sources we should see
from you, currently that's: A/24 and B/24... if we should add more,
speak up by <60days from now>"
They know they're doing asymmetrical routing, and they're paying the ISP a
lot of money to do so.
sure, they are also paying for reliability and lack of problems with
the traffic they send, so making that part the star, not their
stupidty is probably the way forward.
Regards,
John Levine, johnl(_at_)taugh(_dot_)com, Taughannock Networks, Trumansburg NY
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