At 18:30 CST, a large inbound DDOS attack causing high latency to
cxswitch02.dllstx03 and downstream switches was detected by Onsite Support
Technicians. This attack proved difficult to mitigate without affecting
legitimate traffic, and CoreXchange Engineers were made aware of the situation
for mitigation assistance. This attack may have caused extended packet loss and
latency until a successful filter was applied at 19:13 CST. Unfortunately, the
method of attacks are ever-changing, and may never be able to be completely
proactively mitigated. However, we continue to research ways to improve our
response times and methods of quickly filtering these attacks to minimize the
time impacting to our customers.
The CoreXchange Network Operations Center is available to provide up-to-date
status information, should you have any questions. Please reference CoreXchange
ticket #220831.
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