> > valentin antonescu wrote: > [snip OP and my reply] > > > First thank you for your answer. Second it is not > the > > case you described. If I leave only one machine > online > > the bonding works very well. As soon as I bring > online > > the second machine the bonding starts going crazy. > I > > have the same configuration in both and it doesn't > > matter which one I shutdown and which one I let > > running. I also configured the bonding in > > active-backup mode with ARP monitoring, and as the > > documetation describe MII Status field in this > case > > has no relevance. "down" doesn't mean the carrier > > signal is lost but the gateway cannot be reached > like > > before (doesn't answer anymore to arpinging) > > Sorry, I missed that in the design doc, my bad. :-( > > > As a side note I tried the same configuration > with > > MII monitoring and it works perfectly. The > downside of > > it is that I cannot find out when connections > beyond > > the first switches are going down :( > > Let me clarify some things, are these correct?: > > o Failover works when using MII monitoring, if one > *or both* systems are up. =yes > o Failover also works using ARP monitoring, > providing only 1 system is up. =yes > o Failover does not work using ARP when both systems > are up. =yes > o Failure is exhibited by the interface connected to > the *working* route > being marked bad. > =yes > And some further observations: > o The network diagramme you provided shows both > interfaces on each host > have the same MAC address, but ifconfig shows > different MAC's for each > interface, and neither corresponds to the bonding > MAC. =As I understood from the driver documentation the bond changes the MAC to the first nic's MAC. You are right, the cat /proc/net/bonding/bond shows the initial/real MACs and ifconfig shows the changed one. As I said I'm not a netadmin and I don't have a very deep understanding of what this driver does. > o Likewise the IP address you specify in the > diagramme is different from > that used by the bonding device. =I did update the diagram now. It was left like this from a previous configuration. > o You specify a primary interface, which may not > strictly be necessary =Its the active interface, and the bond is changing that actually. > o You specify only 1 ARP target, which probably > doesn't matter in this > configuration as it is the end-point switch. > =You have the option to specify more than one target. In our case is only one. > With that in mind, my next advice would be to check > the MAC addresses > and IP addresses used on the hosts do not clash, and > are correct. > > It would also be good if you could update the web > page so that > information from both hosts are side-by-side, in 2 > columns. This would > make it much easier to see if there is any collision > or misconfiguration. > =I'll do this today. thanks again Craig, Val __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
