My Environment:
Server: Fujitsu PRIMERGY RX2530 M4
Ethernet Adapters: Intel Ethernet Connection X722 LOM (Two SFP+ ports)
Ethernet Adapters Firmware: 3.51
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ESXi: 6.5 U2
i40en driver version: 1.5.8
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Both ethernet ports are connected to Juniper EX4550 Virtual Chassis (Junos version 12.3R9.4).
Switch ports are in trunk mode with native vlan.
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After server boot up ESXi show only one X722 port which is online and port pass traffic. When I assign vlan tag to this interface (also changing ip addresses) then port is online but no traffic.
By default dcbx protocol is enabled on all switch ports:
set protocols dcbx interface all
I disabled dcbx protocol on ports where ESXi server is connected:
set protocols dcbx interface xe-0/0/15.0 disable
set protocols dcbx interface xe-1/0/15.0 disable
After server reboot ESXi show two X722 ports which are online and vlan tag assignment is working.
Is this the i40en driver problem?