802.3ad Link Aggregation does not work

[nasenmann72]

Hi,

configuring 802.3ad Link Aggregation in the web interface does not work. I have configured one bond1 with slave eth2 and eth3 using bonding mode 4 (802.3ad):

auto bond1
iface bond1 inet static
        address  10.10.99.4
        netmask  255.255.255.0
        slaves eth2 eth3
        bond_miimon 100
        bond_mode 802.3ad

But when I checked it in /proc/net/bonding/bond1 the bonding mode was still rr-round robin.

obelix:/# cat /proc/net/bonding/bond1
Ethernet Channel Bonding Driver: v3.2.3 (December 6, 2007)

Bonding Mode: load balancing (round-robin)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0

Slave Interface: eth2
MII Status: up
Link Failure Count: 1
Permanent HW addr: 00:15:17:8f:c8:f0

Slave Interface: eth3
MII Status: up
Link Failure Count: 1
Permanent HW addr: 00:15:17:8f:c8:f1

So I googled a bit and found the solution:

I added the following lines to /etc/modprobe.d/arch/x86_64:

alias bond1 bonding
options bonding mode=4 miimon=100 downdelay=200 updelay=200

I rebooted the machine and the 802.3ad bonding mode worked.

Best regards,
Der Nasenmann

 

[shamael]

If you want to stick with the interfaces config file, you can also use

bond_mode 4

instead of

bond_mode 802.3ad

Seems like it's a kernel bug... see http://www.proxmox.com/forum/showthread.php?t=1569&highlight=bonding