diff --git a/share/man/man4/carp.4 b/share/man/man4/carp.4 index 84e87d6edee8..ca52ba2f7b83 100644 --- a/share/man/man4/carp.4 +++ b/share/man/man4/carp.4 @@ -210,17 +210,18 @@ Enable it on both hosts A and B: .Pp Assume that host A is the preferred master and we are running the 192.168.1.0/24 prefix on em0 and 192.168.2.0/24 on em1. -This is the setup for host A: +This is the setup for host A (advskew is above 0 so it could be overwritten +in the emergency situation from the other host): .Bd -literal -offset indent -ifconfig em0 vhid 1 pass mekmitasdigoat 192.168.1.1/24 -ifconfig em1 vhid 2 pass mekmitasdigoat 192.168.2.1/24 +ifconfig em0 vhid 1 advskew 100 pass mekmitasdigoat 192.168.1.1/24 +ifconfig em1 vhid 2 advskew 100 pass mekmitasdigoat 192.168.2.1/24 .Ed .Pp The setup for host B is identical, but it has a higher .Cm advskew : .Bd -literal -offset indent -ifconfig em0 vhid 1 advskew 100 pass mekmitasdigoat 192.168.1.1/24 -ifconfig em1 vhid 2 advskew 100 pass mekmitasdigoat 192.168.2.1/24 +ifconfig em0 vhid 1 advskew 200 pass mekmitasdigoat 192.168.1.1/24 +ifconfig em1 vhid 2 advskew 200 pass mekmitasdigoat 192.168.2.1/24 .Ed .Pp When one of the physical interfaces of host A fails, @@ -246,9 +247,9 @@ preempt host A on both interfaces instead of just the failed one. .\"out slightly less frequently. .\".Bd -literal -offset indent .\"ifconfig carp0 create -.\"ifconfig carp0 vhid 1 pass mekmitasdigoat 192.168.1.10/24 +.\"ifconfig carp0 vhid 1 advskew 100 pass mekmitasdigoat 192.168.1.10/24 .\"ifconfig carp1 create -.\"ifconfig carp1 vhid 2 advskew 100 pass mekmitasdigoat 192.168.1.10/24 +.\"ifconfig carp1 vhid 2 advskew 200 pass mekmitasdigoat 192.168.1.10/24 .\".Ed .\".Pp .\"The configuration for host B is identical, except the @@ -256,9 +257,9 @@ preempt host A on both interfaces instead of just the failed one. .\"is on virtual host 1 rather than virtual host 2. .\".Bd -literal -offset indent .\"ifconfig carp0 create -.\"ifconfig carp0 vhid 1 advskew 100 pass mekmitasdigoat 192.168.1.10/24 +.\"ifconfig carp0 vhid 1 advskew 200 pass mekmitasdigoat 192.168.1.10/24 .\"ifconfig carp1 create -.\"ifconfig carp1 vhid 2 pass mekmitasdigoat 192.168.1.10/24 +.\"ifconfig carp1 vhid 2 advskew 100 pass mekmitasdigoat 192.168.1.10/24 .\".Ed .\".Pp .\"Finally, the ARP balancing feature must be enabled on both hosts: