man8/bridge.8: add locked port feature description and cmd syntax

Signed-off-by: Hans Schultz <schultz.hans+netdev@gmail.com>
Signed-off-by: David Ahern <dsahern@kernel.org>

diff --git a/man/man8/bridge.8 b/man/man8/bridge.8
index 81ce9e6f7c8fb1025d25fb7fe7c296f0c15f4cb1..cb0ffc166e3e3933741efaee161ffd34490d0ad3 100644 (file)
--- a/man/man8/bridge.8
+++ b/man/man8/bridge.8
@@ -50,6 +50,7 @@ bridge \- show / manipulate bridge addresses and devices
 .BR neigh_suppress " { " on " | " off " } ] [ "
 .BR vlan_tunnel " { " on " | " off " } ] [ "
 .BR isolated " { " on " | " off " } ] [ "
+.BR locked " { " on " | " off " } ] [ "
 .B backup_port
 .IR  DEVICE " ] ["
 .BR nobackup_port " ] [ "
@@ -513,6 +514,16 @@ Controls whether a given port will be isolated, which means it will be
 able to communicate with non-isolated ports only.  By default this
 flag is off.
 
+.TP
+.BR "locked on " or " locked off "
+Controls whether a port will be locked, meaning that hosts behind the
+port will not be able to communicate through the port unless an FDB
+entry with the units MAC address is in the FDB.
+The common use is that hosts are allowed access through authentication
+with the IEEE 802.1X protocol or based on whitelists or like setups.
+By default this flag is off.
+
+
 .TP
 .BI backup_port " DEVICE"
 If the port loses carrier all traffic will be redirected to the