- Add a small section about address limits

PR: docs/118543 Submitted by: thompsa
svn path=/head/; revision=31137
2007-12-20 22:21:44 +00:00 · 2007-12-20 22:21:44 +00:00 · 9980d98d76 · 2020-12-08 03:00:23 +00:00
commit 9980d98d76
parent b8be1d00d1
1 changed files with 15 additions and 0 deletions
--- a/en_US.ISO8859-1/books/handbook/advanced-networking/chapter.sgml
+++ b/en_US.ISO8859-1/books/handbook/advanced-networking/chapter.sgml
@ -3071,6 +3071,21 @@ bridge0: flags=8843&lt;UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST&gt; metric 0 mtu 1
 	  can be allocated without subnetting.</para>
      </sect3>

+      <sect3>
+	<title>Address limits</title>
+
+	<para>The number of unique source MAC addresses behind an
+	  interface can limited.  Once the limit is reached packets
+	  with unknown source addresses are dropped until an
+	  existing host cache entry expires or is removed.</para>
+
+	<para>The following example sets the maximum number of Ethernet
+	  devices for <hostid role="Hostname">CustomerA</hostid> on
+	  <literal>vlan100</literal> to 10.</para>
+
+	<screen>&prompt.root; <userinput>ifconfig bridge0 ifmaxaddr vlan100 10</userinput></screen>
+      </sect3>
+
      <sect3>
 	<title>SNMP Monitoring</title>