SYSNICS network config?

What does the SYSNICS="1" mean or do in the /boot/config/network.cfg file?

My unraid server uses LACP bond mode 4 with two physical NICs, apparently it works, but I'd like to finetune where possible.

Shouldn't it be SYSNICS="2" then?

I use bonding on a remote debian server with this config:

auto lo
iface lo inet loopback

auto bond0
iface bond0 inet manual
bond-slaves enp1s0 enp2s0
bond-mode 802.3ad
bond-miimon 100
bond-updelay 200
bond-downdelay 200
bond-lacp-rate 0
bond-xmit_hash_policy layer3+4

auto br0
iface br0 inet static
address 192.168.1.9
netmask 255.255.255.0
gateway 192.168.1.1
dns-nameservers 127.0.0.1
bridge_ports bond0
bridge_waitport 0
bridge_fd 0

And I would like to have my unraid server use the same settings for its bond mode 4. Currently it's:

# Generated settings:
IFNAME[0]="br0"
BONDNAME[0]="bond0"
BONDING_MIIMON[0]="100"
BRNAME[0]="br0"
BRSTP[0]="no"
BRFD[0]="0"
BONDING_MODE[0]="4"
BONDNICS[0]="eth0 eth1"
BRNICS[0]="bond0"
PROTOCOL[0]="ipv4"
USE_DHCP[0]="no"
IPADDR[0]="192.168.1.11"
NETMASK[0]="255.255.255.0"
GATEWAY[0]="192.168.1.1"
DNS_SERVER1="192.168.1.9"
DNS_SERVER2="1.0.0.2"
USE_DHCP6[0]="no"
SYSNICS="1"

The bonding seems to work:

# ifconfig
bond0: flags=5443<UP,BROADCAST,RUNNING,PROMISC,MASTER,MULTICAST>  mtu 1500
        ether d0:50:99:d1:8f:47  txqueuelen 1000  (Ethernet)
        RX packets 370606  bytes 60409014 (57.6 MiB)
        RX errors 0  dropped 191  overruns 0  frame 0
        TX packets 2881873  bytes 4333925543 (4.0 GiB)
        TX errors 0  dropped 170 overruns 0  carrier 0  collisions 0

br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.11  netmask 255.255.255.0  broadcast 0.0.0.0
        ether d0:50:99:d1:8f:47  txqueuelen 1000  (Ethernet)
        RX packets 338185  bytes 15248343 (14.5 MiB)
        RX errors 0  dropped 53  overruns 0  frame 0
        TX packets 86837  bytes 4182443853 (3.8 GiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

docker0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 172.17.0.1  netmask 255.255.0.0  broadcast 172.17.255.255
        ether 02:42:3d:e5:d5:ce  txqueuelen 0  (Ethernet)
        RX packets 650  bytes 75489 (73.7 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 497  bytes 124616 (121.6 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eth0: flags=6211<UP,BROADCAST,RUNNING,SLAVE,MULTICAST>  mtu 1500
        ether d0:50:99:d1:8f:47  txqueuelen 1000  (Ethernet)
        RX packets 351441  bytes 57287347 (54.6 MiB)
        RX errors 0  dropped 4  overruns 0  frame 0
        TX packets 53320  bytes 69543800 (66.3 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device memory 0x91300000-9137ffff

eth1: flags=6211<UP,BROADCAST,RUNNING,SLAVE,MULTICAST>  mtu 1500
        ether d0:50:99:d1:8f:47  txqueuelen 1000  (Ethernet)
        RX packets 14203  bytes 2002583 (1.9 MiB)
        RX errors 0  dropped 3  overruns 0  frame 0
        TX packets 2824329  bytes 4262089349 (3.9 GiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device memory 0x91400000-9147ffff

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 5309  bytes 378075 (369.2 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 5309  bytes 378075 (369.2 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

vethadea463: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 76:af:3b:7e:14:8d  txqueuelen 0  (Ethernet)
        RX packets 650  bytes 84589 (82.6 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 497  bytes 124616 (121.6 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

vnet0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether fe:54:00:57:cb:d9  txqueuelen 1000  (Ethernet)
        RX packets 6067  bytes 738073 (720.7 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 12127  bytes 36184105 (34.5 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

So that looks OK now, but is there a way to set

bond-lacp-rate 0
bond-xmit_hash_policy layer3+4

in unraid network config?