bonding - ping dup!

[Stefano Galbusera]

Hi,
I have configure some linux server with two network interfaces in active-backup bonding (kernel 2.4.21-15.Elsmp RedHatES3U2)

when I ping them I recive a dup! (icmp_seq=0 ttl=63 time=0.373 ms (DUP!))
why?
tnx
Steve

[Steven E. Protter]

I think it might be letting you know its bonded. Try deactiving one of the two NIC's and pinging again.

Also, if you do a service network restart you should see an indication concerning bonding.

SEP

[Stefano Galbusera]

bonding run correct,
if I remove one cable all traffic flow to the second interface and yes, I have a bond0 interface.

[Daniel Ettle]

You have also to make the switch work.
On Cisco switches it's called "etherchannel"-feature which have to be activated on the ports your server plugs in.