Azure Virtual FortiGate dropped SR-IOV Accelerated Networking interfaces Port1, Port2, Port3, Port4

[sgawande]

Azure Virtual FortiGate dropped SR-IOV Accelerated Networking interfaces Port1, Port2, Port3, Port4.

More than 50 IPsec tunnels down & came up after restart. 

System Events logs 

device port1 loses a SR-IOV slave device sriovslv2.

Hyper-V SR-IOV VF secondary is hot unplugged

I raised a ticket with Microsoft & Fortinet for RCA. 

Can someone helps me to understand root cause & prevent this issue for future.

[ozkanaltas]

Hello @sgawande ,

I found a document about that. Did you review this document before?

https://docs.fortinet.com/document/fortigate-public-cloud/7.4.0/azure-administration-guide/651644/en...

[sgawande]

Hi

Accelerated networking is already enabled since NVA deployed. I m looking for root cause why suddenly Azure FortiGate lost connection for 20 seconds.