Thank you sir, I knew this way already.
But it does not recommend by Extreme, so I didn't update the issue.
The NIC setting file was located as following path,
"/etc/network/interfaces"
After add the 2nd NIC,
NetSight need to modify something to make those devices on 2nd NIC can be searched with interface summary, compass.
![120ff6a7e37e48ec9c719ea70c249ce1_RackMultipart20160218-118250-aoozfs-20_inline.png 120ff6a7e37e48ec9c719ea70c249ce1_RackMultipart20160218-118250-aoozfs-20_inline.png](/t5/image/serverpage/image-id/2148i7A8ED29A505F9F5E/image-size/large?v=v2&px=999)
Update the issue for you~