I've configured Channel-bonding (on RHEL/CentOS) with with balance-alb (mode=6) option:
BONDING_OPTS="mode=balance-alb miimon=100 updelay=200 downdelay=200"
which is working fine and according to the
/proc/net/bonding/bond0, the active-slave is
[root@baba ~]# cat /proc/net/bonding/bond0 Ethernet Channel Bonding Driver: v3.4.0-1 (October 7, 2008) Bonding Mode: adaptive load balancing Primary Slave: None Currently Active Slave: eth1 MII Status: up MII Polling Interval (ms): 100 Up Delay (ms): 200 Down Delay (ms): 200 Slave Interface: eth0 MII Status: up Speed: 1000 Mbps Duplex: full Link Failure Count: 0 Permanent HW addr: 00:19:00:00:00:fb Slave Interface: eth1 MII Status: up Speed: 1000 Mbps Duplex: full Link Failure Count: 0 Permanent HW addr: 00:06:11:11:11:3b
(I've replaced the middle bits of the MAC by 00 and 11 intentionally)
Now, according to the
ifconfig, the MAC address allocation for eth0 and eth1 are different (from the above output) - they are switched.
[root@baba ~]# ifconfig | sed -n '/^[a-z]*[0-9]/p' bond0 Link encap:Ethernet HWaddr 00:19:00:00:00:FB eth0 Link encap:Ethernet HWaddr 00:06:11:11:11:3B eth1 Link encap:Ethernet HWaddr 00:19:00:00:00:FB
Does any one know why I'm seeing this or how does it work? Thanks in advance. Cheers!!