Why Now?
Speeds
Devices are now faster than ever.  They look deeper
into the packet and make more complex decisions.  We
are not just talking about interconnect devices anymore.
Features
Devices are now able to do protocol conformance
validation, security signature recognition, anti-virus,
anti-spam, metering, etc.  We need to test these.
Applications
The number of applications on our networks is
exploding.  Why should we only test with HTTP when it
is only part of what the device will see.
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