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. 

[sgawande]

Hi ,

I discussed with Fortinet TAC , confirmed its bug in Azure hosted Fortigates for this type of events
Its still not yet resolved 

[mrashidi]

This bug has been resolved on FOS v7.4.8 and 7.6.3, bug # 999842

• Resolved issues | FortiGate / FortiOS 7.4.8 | Fortinet Document Library
• Resolved issues | FortiGate / FortiOS 7.6.3 | Fortinet Document Library