[c-nsp] Non-transit customer AS and prefix leaks

[Artyom Viklenko]

Hi, list!

I had some problem last weekend. Lets say we - ISP-A, announce
some prefixes to Customer. Due to some bug or misconfiguration
these prefixes reached ISP-B (who provides another uplink to
Customer). I'm was surprised that ISP-B received our prefixes
from Customer (wrong filters?). And then, these prefixes was
announced to Internet and some Exchange Points.
This lead to incorrect routing of incoming thrafic towars our
prefixes via slow Customer's links. This lead to near 100%
packet loss.

After several phone calls problem was fixed. But now, I'm
trying to find some solution to prevent such problems in future.

One solution I thinking of is to mark all announces to such
non-transit Customers with no-export community.

What do you guys think about this? Is it acceptable or not?
Is it any other possible solutions to prevent such cases
already in place?

Thanks in advance!

-- 
            Sincerely yours,
                             Artyom Viklenko.
-------------------------------------------------------
artem at aws-net.org.ua | http://www.aws-net.org.ua/~artem
artem at viklenko.net   | JID: artem at jabber.aws-net.org.ua
FreeBSD: The Power to Serve   -  http://www.freebsd.org