Strange behavior with carp and preemption

Dear list, I set up two OpenBSD 3.7 -stable firewalls using carp. Everything works except preemption. When only one interface on the master side fails (pull the Cable) the regarding carp0 interface on the backup side becomes master. But not carp1. I waited some minutes, but carp1 keeps being bac

Re: Strange behavior with carp and preemption

Hi Nick, > Nick Holland wrote: > To the top of google we go! :) Great! :-) > are all the interfaces really in the carp group? Yes, I believe, because carp works if I shut down the Box, or something... > are the interfaces accurately and reliably detecting the cable-unplug? > Might some NICs (o

Re: Strange behavior with carp and preemption

Hi list, I found out something new. > Ralf Hornik Mailings schrieb: > However, the advskew of carp1 on the master side keeps being zero, > allthough showing itself as BACKUP. Should ifconfig show advskew 240 then? tcpdump tells me although preemtion enabled an advskew of 0! After

Re: Strange behavior with carp and preemption

Hi Eli, > Eli K. Breen wrote: > Have you tried simply unplugging one's network cable? (to more closely > replicate what would happen during a hard lock or panic?) I should think > things won't be as smooth. Thats correct. When ifconfig down one IF, then it works and the backup becomes master on b