Hi,
How does dampening affect multiple links to the same provider? Here's
the scenario:
Exodus<-->Sprint<-->our upstream<--4xT1-->us
We are announcing one prefix over two of the T1's above. One of the T1's
went bad, causing the prefix to be dampened. However, when we check via
route-server.exodus.net, the prefix was not known at all.
Shouldn't the other announcement be used?
Or is it that at either of Exodus or Sprint, it saw the prefix being
unstable, and dampened it, and the router server never saw it? In other
words, when a prefix is flapping, all announcements coming from the same
transit ASN are dampened?
We did see that route-server.cerf.net recovered more quickly to the
flapping:
AT&T<-->our upstream<--4xT1-->us
If the transit ASN matters, would you recommend that the prefix be announced
to another upstream? (which we do, but smaller bandwidth).
Thanks in advance!
--http://www.internet.org.ph The Philippine Internet Resource Mobile Voice/Messaging: +63-917-810-9728
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:12:29 EDT