This is also being widely reported on the NANOG
and inetproviders lists. Check traffic outbound
from your MS SQL hosts if any. Firewall 1434/UDP
inbound and outbound if you don't already.

Tier 1 backbones are reporting a bad night: routing
instabilities, one major dropped most of its peering
for a while, the volume from this triggers the Cisco
netflow switching bug and is causing routers to lock
up at places, etc.

-george william herbert
gherbert (at) retro (dot) com [email concealed]

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