>I was going to suggest that you look at the ifconfig(8) source code, but then >I did so myself - it looks like you're doing it pretty much exactly how they >are. I've never >noticed ifconfig(8) returning an incorrect value, not to say >it's not possible. > >Are you sure that nothing is causing interface state resets? i.e. >mismatched duplex/speed settings between the FreeBSD machine and the switch? >Have you checked dmesg(8) for logs of interface state changes? >You can also check the output of 'netstat -i' to check for interface errors.
I should have added that when our own monitoring code flags one of these false positives, there is no entry in /var/log/messages indicating that the nic has gone offine. I added a second call to confirm that indeed the interface is offline, and this second check seems to have largely solved the problem, but we have seen a case where even two consecutive checks return false positives. Maybe we need three tests? _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
