Does updating definitions/antivirus cause any downtime?

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Highlighted
L1 Bithead

Does updating definitions/antivirus cause any downtime?

I have a new PA-3020 that is inline on my network, meaning if it goes down then so does my network.  
Because this PA-3020 is inline I was worried about updating the definitions (only two weeks old right now), and I was not sure if during a definitions/antivirus update, then the 3020 might drop or blip its in/out connections.  Basically, if my 3020 were to lose connection, even for 30 seconds, then many alarms would sound on our network monitoring system, and I would like to avoid that.    

 

I have seen a definition update take place, and it does not seem like the Palo Alto blips its connections.  
Just thought I would ask you guys first, thanks.  

Highlighted
Cyber Elite

@AndrewPaloAlto,

Dynamic updates don't cause any downtime, and they won't directly effect traffic in any way unless a new signature starts mapping the traffic that isn't accounted for or causes a false-positive match (new app-ids that are identified but aren't accounted for in the security rulebase, or new threat signatures that falsely match legitimate traffic within your environment). 

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