11.08.2012 20:35, David Duchscher пишет: > Greetings, > > I have a need to turn off the link of an ethernet port on a Intel nic. The > issue is not a big deal but one we would like to solve. we have no way of > signaling an upstream router that a path is down but via turning off the link > of the ethernet port. This would only be used when something goes wrong. The > hope is that we could automate some problems and handle other situations > remotely avoiding having to visit the system in person. > > Any thoughts? We can modify the system so if it means modifying the driver > or some other code, I am willing to try. Just need a little direction. > > Thanks for your time,
I made such patch a couple of years ago and run it in production with copper-based em(4) and igb(4) NICs. The patch introduces new sysctls like dev.em.X.down_disables_link and dev.igb.X.down.disables_link with default zero values. Setting sysctl dev.em.0.down_disables_link=1 makes "ifconfig em0 down" bring link down. http://www.grosbein.net/freebsd/patches/em_sysctl-8.3.diff.gz http://www.grosbein.net/freebsd/patches/igb_sysctl-8.3.diff.gz _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
