Is I340-T4 capable of monitor mode on stable/10 r284296?

[Trond Endrestøl]

Hi,

Does anyone know if Intel Ethernet Server Adapter I340-T4, quad ports, 
82580 controller, can be used in monitor mode on stable/10 r284296?

Will this work by itself:

ifconfig igb1 up monitor promisc

I don't get any error messages, so I assume the driver and adapter is 
on terms with each other.

I'm having difficulty getting net-mgmt/iftop to see the traffic on the 
igb1, whereas tcpdump -vvs 0 -i igb1 sees the traffic.

iftop has no problems seeing the traffic on bce1 on the same system.

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