svn commit: r266859 - head/share/man/man4

[Dmitry Morozovsky]

Author: marck (doc committer)
Date: Thu May 29 21:02:57 2014
New Revision: 266859
URL: http://svnweb.freebsd.org/changeset/base/266859

Log:
  Change examples to have master skew above 0 to have ability to overwrite this
  from the slave (for example, when master is failing on disk IO and could not be
  logged into or execute cronjob).
  
  Commented out examples changed too to simplify future merging.
  
  Idea by:	kaa at zvuki.ru
  Discussed with:	glebius
  MFC after:	1 week

Modified:
  head/share/man/man4/carp.4

Modified: head/share/man/man4/carp.4
==============================================================================
--- head/share/man/man4/carp.4	Thu May 29 21:00:06 2014	(r266858)
+++ head/share/man/man4/carp.4	Thu May 29 21:02:57 2014	(r266859)
@@ -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 instea
 .\"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 instea
 .\"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: