Autofailback on network bond?

[Overtaxed]

I have a active-backup (1) bond setup on my UnRAID (6.9.2) server between a 10G and 1G adapter.  I want the 10G adapter, if it has a link, to always be the active partner.   Was seeing a whole bunch of traffic out of my 1G switch from UnRAID and logged in to find this:

 

root@unraid:/proc/net/bonding# cat bond0 
Ethernet Channel Bonding Driver: v5.10.28-Unraid

Bonding Mode: fault-tolerance (active-backup)
Primary Slave: None
Currently Active Slave: eth1
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
Peer Notification Delay (ms): 0

Slave Interface: eth0
MII Status: up
Speed: 10000 Mbps
Duplex: full
Link Failure Count: 1
Permanent HW addr: 90:e2:ba:2e:ee:bc
Slave queue ID: 0

Slave Interface: eth1
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 2
Permanent HW addr: 00:d8:61:37:1e:13
Slave queue ID: 0

 

I bounced the interface on eth1 and, as expected, UnRAID failed back to the 10G link and everything looks good:

 

root@unraid:/proc/net/bonding# cat bond0 
Ethernet Channel Bonding Driver: v5.10.28-Unraid

Bonding Mode: fault-tolerance (active-backup)
Primary Slave: None
Currently Active Slave: eth0
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
Peer Notification Delay (ms): 0

Slave Interface: eth0
MII Status: up
Speed: 10000 Mbps
Duplex: full
Link Failure Count: 1
Permanent HW addr: 90:e2:ba:2e:ee:bc
Slave queue ID: 0

Slave Interface: eth1
MII Status: down
Speed: Unknown
Duplex: Unknown
Link Failure Count: 3
Permanent HW addr: 00:d8:61:37:1e:13
Slave queue ID: 0

 

 

Question is, how to I make it so that if the 10G NIC has a link, it will use that as the primary at all times?  In the GUI, bonding members of bond0 show as "eth0, eth1".  I set eth0 to be the 10G NIC, I thought UnRAID always preferred the lower number, so I set eth0 to the 10G NIC using "Interface Rules".