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Old 11-08-2005, 06:05 AM   #1
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Angry Finding out Bonding mode of Interface

Hi guys need some help.

Here is short description of the problem:

I have have 8 pysical interfaces in my system which i have configured using netdevice_register fuctions.

I have to bond interfaces 1,2 and 3 to bond0 in round robin mode(ie mode=0). And bond interfaces 4 and 5 to bond1 in active backup mode (ie mode=1).

To do this mode i am supplying the bond mode at the time of bond creation throungh insmod(bonding.c) and creating slaves through enslave module.

However a different module of the project needs to know 1. whether a given interface is bonded or not.
2. if yes then what is the bonding mode.

By checking IFF_SLAVE flag of that net_device structure in interface device driver we can know whether interface is bonded or not.

But i do no know how to find out the bonding mode of the interface ie whether it is in the round-robin mode or active standby mode. I couldnt find out where is the kernel storing bonding mode information.


Early reply would be really appreciated. Thanx in advance
Old 09-11-2008, 01:58 PM   #2
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These should give you all the information you need (if I understand correctly):
less /proc/net/bond0/info
less /proc/net/bond1/info
Old 09-11-2008, 02:01 PM   #3
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Sorry didn't see how old this was until after the fact...
Old 06-08-2015, 01:28 PM   #4
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It still helps though.

less /proc/net/bonding/bond0
Old 07-09-2015, 02:19 AM   #5
Registered: Jul 2014
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an example from a real server

[root@m132 network-scripts]# cat /sys/class/net/bond0/bonding/mode
802.3ad 4


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