bridge.4: Document the net.link.bridge.log_mac_flap sysctl variable
It was introduced in 2d3614fb13
(bridge: Log MAC address port flapping).
Reviewed by: gbe (manpages)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D39465
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@ -35,7 +35,7 @@
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.\"
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.\" $FreeBSD$
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.\"
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.Dd September 7, 2022
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.Dd April 10, 2023
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.Dt IF_BRIDGE 4
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.Os
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.Sh NAME
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@ -118,6 +118,15 @@ interfaces that are part of the bridge.
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For unicast traffic, the bridge learns which MAC addresses are associated
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with which interfaces and will forward the traffic selectively.
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.Pp
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By default the bridge logs MAC address port flapping to
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.Xr syslog 3 .
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This behavior can be disabled by setting the
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.Xr sysctl 8
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variable
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.Va net.link.bridge.log_mac_flap
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to
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.Li 0 .
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.Pp
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All the bridged member interfaces need to be up in order to pass network traffic.
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These can be enabled using
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.Xr ifconfig 8
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