SummaryThe QUIC protocol is a Google developed protocol that runs on all their services.
OverviewQuick UDP Internet Connection (QUIC) is a Google developed protocol that aims to provide TCP like enhancements to standard UDP traffic. It is used when communicating with any of the Google services from a browser with QUIC enabled. UDP Port 80 and 443 is used by the QUIC protocol. The only browser that currently has QUIC support is Chrome/Chromium based browsers, which have QUIC enabled by default. All Google Services on the server side are enabled and use QUIC.
The Exinda has a definition for QUIC traffic starting in 7.4.0. However, it can be seen that some QUIC traffic is still coming up as unclassified (being seen as 'udp ports x &y ') in later versions of 7.4.2
CauseThis is currently under investigation.
WorkaroundAs a work around, it is possible to disable QUIC support in Chrome through using the browser itself, or through the registry.
To disable it through the browser
1. Navigate to chrome://flags.
2. Find the option to disable QUIC.