FreeBSD Bugzilla – Attachment 169161 Details for
Bug 208681
[patch] CARP preemption explanation is misleading
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clarified proposal for the preemption note
clarify-preemption.diff.txt (text/plain), 1.30 KB, created by
Philipp Erbelding
on 2016-04-10 19:25:23 UTC
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Description:
clarified proposal for the preemption note
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MIME Type:
Creator:
Philipp Erbelding
Created:
2016-04-10 19:25:23 UTC
Size:
1.30 KB
patch
obsolete
>Index: en_US.ISO8859-1/books/handbook/advanced-networking/chapter.xml >=================================================================== >--- en_US.ISO8859-1/books/handbook/advanced-networking/chapter.xml (revision 48553) >+++ en_US.ISO8859-1/books/handbook/advanced-networking/chapter.xml (working copy) >@@ -5097,13 +5097,15 @@ > the master becomes available again.</para> > > <note> >- <para>Preemption is disabled by default. If preemption has >- been enabled, <systemitem>hostc.example.org</systemitem> >- might not release the virtual <acronym>IP</acronym> address >- back to the original master server. The administrator >+ <para>If the original master server becomes available again, >+ <systemitem>hostc.example.org</systemitem> will not release >+ the virtual <acronym>IP</acronym> address back to it >+ automatically. For this to happen, preemption has to be >+ enabled. The feature is disabled by default, >+ it is controlled via the &man.sysctl.8; variable >+ <varname>net.inet.carp.preempt</varname>. The administrator > can force the backup server to return the >- <acronym>IP</acronym> address to the master with the >- command:</para> >+ <acronym>IP</acronym> address to the master:</para> > > <screen>&prompt.root; <userinput>ifconfig em0 vhid 1 state backup</userinput></screen> > </note>
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: 169161