diff --git a/CHANGES b/CHANGES
index b8c56be871..5395919d4b 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,6 @@
+3113.	[doc]		Document the relationship between serial-query-rate
+			and NOTIFY messages.
+
 3112.	[doc]		Add missing descriptions of the update policy name
 			types "ms-self", "ms-subdomain", "krb5-self" and
 			"krb5-subdomain", which allow machines to update
diff --git a/doc/arm/Bv9ARM-book.xml b/doc/arm/Bv9ARM-book.xml
index 37fb62ff36..214cc9c331 100644
--- a/doc/arm/Bv9ARM-book.xml
+++ b/doc/arm/Bv9ARM-book.xml
@@ -18,7 +18,7 @@
  - PERFORMANCE OF THIS SOFTWARE.
 -->
 
-<!-- File: $Id: Bv9ARM-book.xml,v 1.490 2011/05/16 04:09:34 marka Exp $ -->
+<!-- File: $Id: Bv9ARM-book.xml,v 1.491 2011/05/17 04:48:51 marka Exp $ -->
 <book xmlns:xi="http://www.w3.org/2001/XInclude">
   <title>BIND 9 Administrator Reference Manual</title>
 
@@ -7630,22 +7630,27 @@ avoid-v6-udp-ports {};
 
             <varlistentry>
               <term><command>serial-query-rate</command></term>
-              <listitem>
-                <para>
-                  Slave servers will periodically query master servers
-                  to find out if zone serial numbers have changed. Each such
-                  query uses
-                  a minute amount of the slave server's network bandwidth.  To
-                  limit the
-                  amount of bandwidth used, BIND 9 limits the rate at which
-                  queries are
-                  sent.  The value of the <command>serial-query-rate</command> option,
-                  an integer, is the maximum number of queries sent per
-                  second.
-                  The default is 20.
-                </para>
-              </listitem>
-            </varlistentry>
+	      <listitem>
+		<para>
+		  Slave servers will periodically query master
+		  servers to find out if zone serial numbers have
+		  changed. Each such query uses a minute amount of
+		  the slave server's network bandwidth.  To limit
+		  the amount of bandwidth used, BIND 9 limits the
+		  rate at which queries are sent.  The value of the
+		  <command>serial-query-rate</command> option, an
+		  integer, is the maximum number of queries sent
+		  per second.  The default is 20.
+		</para>
+		<para>
+		  In addition to controlling the rate SOA refresh
+		  queries are issued at
+		  <command>serial-query-rate</command> also controls
+		  the rate at which NOTIFY messages are sent from
+		  both master and slave zones.
+		</para>
+	      </listitem>
+	    </varlistentry>
 
             <varlistentry>
               <term><command>serial-queries</command></term>
@@ -8791,6 +8796,10 @@ avoid-v6-udp-ports { 40000; range 50000 60000; };
                   The delay, in seconds, between sending sets of notify
                   messages for a zone.  The default is five (5) seconds.
                 </para>
+                <para>
+		  The overall rate that NOTIFY messages are sent for all
+		  zones is controlled by <command>serial-query-rate</command>.
+		</para>
               </listitem>
             </varlistentry>
 	  </variablelist>