ethernet bonding on 10.04.2 LTS

jurgen.depicker at jurgen.depicker at
Mon Mar 7 11:42:19 UTC 2011

Hi all.

On ubuntu 10.04, contrary to what is posted on , my bond refuses to come 
up after reboot if I don't at least create the 
/etc/modprobe.d/bonding.conf file with one line in it:
alias bond0 bonding

My /etc/network/interfaces looks as follows:

# The primary network interface
#auto eth0
#iface eth0 inet dhcp

###Adapter bonding for eth0 and eth1
auto bond0
iface bond0 inet static
post-up ifenslave bond0 eth0 eth1
pre-down ifenslave -d bond0 eth0 eth1
bond_mode 4  #802.3ad
bond_miimon 100
bond_lacp_rate 1

I tried both bond-mode 4 and bond_mode 802.3ad , but as you can see 
underneath, it's always round-robin:
root at VLET1:~# cat /proc/net/bonding/bond0
Ethernet Channel Bonding Driver: v3.5.0 (November 4, 2008)

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

Slave Interface: eth0
MII Status: up
Link Failure Count: 0
Permanent HW addr: 00:15:17:31:3d:ac

Slave Interface: eth1
MII Status: up
Link Failure Count: 0
Permanent HW addr: 00:15:17:31:3d:ad

What am I doing something wrong?

Met vriendelijke groeten/Kind regards/Meilleures salutations,
Jürgen Depicker
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