[master] further clarify edns doc

diff --git a/doc/arm/Bv9ARM-book.xml b/doc/arm/Bv9ARM-book.xml
index 79dcf1b4c9ae2c57328692187119a607e8132ec5..9d1a3450a0eb7c6f4b1d6297528e2431be9c89bf 100644 (file)
--- a/doc/arm/Bv9ARM-book.xml
+++ b/doc/arm/Bv9ARM-book.xml
@@ -8598,7 +8598,8 @@ avoid-v6-udp-ports { 40000; range 50000 60000; };
                  bytes, to control the size of packets received from
                  authoritative servers in response to recursive queries.
                  Valid values are 512 to 4096 (values outside this range
-                 will be silently adjusted).  The default value is 4096.
+                 will be silently adjusted to the nearest value within
+                 it).  The default value is 4096.
                </para>
                <para>
                  The usual reason for setting
@@ -8620,7 +8621,8 @@ avoid-v6-udp-ports { 40000; range 50000 60000; };
                  successes using plain DNS, <command>named</command>
                  will default to plain DNS for future communications
                  with that server.  (Periodically, <command>named</command>
-                 will an EDNS query to see if the situation has improved.)
+                 will send an EDNS query to see if the situation has
+                 improved.)
                </para>
                <para>
                  However, if the initial query is successful with
@@ -8635,8 +8637,8 @@ avoid-v6-udp-ports { 40000; range 50000 60000; };
                  are 512, 1232, 1432, and 4096, but never exceeding
                  <command>edns-udp-size</command>.  (The values 1232 and
                  1432 are chosen to allow for an IPv4/IPv6 encapsulated
-                 UDP message to be sent without fragmentation at Ethernet
-                 and IPv6 network mimimum MTU sizes.)
+                 UDP message to be sent without fragmentation at the
+                 minimum MTU sizes for Ethernet and IPv6 networks.)
                </para>
              </listitem>
            </varlistentry>
@@ -8648,8 +8650,8 @@ avoid-v6-udp-ports { 40000; range 50000 60000; };
                  Sets the maximum EDNS UDP message size
                  <command>named</command> will send in bytes.
                  Valid values are 512 to 4096 (values outside this
-                 range will be silently adjusted).  The default
-                 value is 4096.
+                 range will be silently adjusted to the nearest
+                 value within it).  The default value is 4096.
                </para>
                <para>
                  This value applies to responses sent by a server; to
@@ -10004,13 +10006,13 @@ rate-limit {
          </para>
 
          <para>
-            The optional <command>domain</command> clause specifies
-            the namespace to which rate limits will apply.  It
-            is possible to use different rate limits for different names
-            by specifying multiple <command>rate-limit</command> blocks
-            with different <command>domain</command> clauses.
-            The <command>rate-limit</command> statement's
-            <command>domain</command> most closely matches the query
+           The optional <command>domain</command> clause specifies
+           the namespace to which rate limits will apply.  It
+           is possible to use different rate limits for different names
+           by specifying multiple <command>rate-limit</command> blocks
+           with different <command>domain</command> clauses.
+           The <command>rate-limit</command> statement's
+           <command>domain</command> most closely matches the query
            name will be the one applied to a given query.
          </para>
 
@@ -10225,7 +10227,8 @@ rate-limit {
            The <command>edns-udp-size</command> option sets the EDNS UDP size
            that is advertised by <command>named</command> when querying the remote server.
            Valid values are 512 to 4096 bytes (values outside this range will be
-           silently adjusted).  This option is useful when you wish to
+           silently adjusted to the nearest value within it).  This option is
+           useful when you wish to
            advertises a different value to this server than the value you
            advertise globally, for example, when there is a firewall at the
            remote site that is blocking large replies.