Packet flow for Hardware Offload

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Highlighted
L3 Networker

Packet flow for Hardware Offload

Dear Experts,

 

Was wondering regarding packet flow in terms of hardware offload. Is it like below or somethingelse?

 

Ingress Stage > Session table/flow lookup> Offloaded

 

or 

 

Ingress Stage > Session table/flow lookup > App-ID/Content-ID inspection is done or not > offloaded

 

Please suggest.

 

Best Reagrds,

 

Fozail

Highlighted
Cyber Elite

@fozail this link should provide you with all the session offload documentation you could possibly want. 

https://live.paloaltonetworks.com/t5/Learning-Articles/Palo-Alto-Networks-Firewall-Session-Overview/...

 

 

Highlighted
L4 Transporter

Hi Fozail,

 

The flow is the second one you mentioned (at a high level), depending on the app it will fall to the first one i.e once the session is identified as SSL is then this gets offloaded if you're not decrypting.

 

Check this document, it goes into a lot of detail on the packet flow on the firewall.

 

https://live.paloaltonetworks.com/t5/Learning-Articles/Packet-Flow-Sequence-in-PAN-OS/ta-p/56081

 

hope this helps,

Ben

Highlighted
L3 Networker

Hi Ben,

 

I have chceked the DOC-1628, but it does not talk about FPGA. After which stage FPGA comes into picture.

 

As far as I understood, once application gets identified like SSL and there is no further content ispection is needed, packet will go through Ingress Stage > Session Lookup > Matched Active session > application got identified like SSL and there is no further content ispection is needed > handover the packet to FPGA.

 

Please correct me if I am wrong.

 

Best Regards,

 

Fozail

Highlighted
Cyber Elite

yes my understanding is also  this if app is identified and no more decryption thenit is offloaded.

lets see if someone confirm this?

MP
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