diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
new file mode 100644
index 86dbd0f..2811f11
*** a/doc/src/sgml/config.sgml
--- b/doc/src/sgml/config.sgml
*************** include 'filename'
*** 684,691 ****
        </indexterm>
        <listitem>
         <para>
!         Specifies the number of seconds before sending a keepalive packet on
!         an otherwise idle connection.  A value of 0 uses the system default.
          This parameter is supported only on systems that support the
          <symbol>TCP_KEEPIDLE</> or <symbol>TCP_KEEPALIVE</> symbols, and on
          Windows; on other systems, it must be zero.
--- 684,692 ----
        </indexterm>
        <listitem>
         <para>
!         Specifies the number of seconds of inactivity after which TCP
!         should send a keepalive message to the client.  A value of 0 uses
!         the system default.
          This parameter is supported only on systems that support the
          <symbol>TCP_KEEPIDLE</> or <symbol>TCP_KEEPALIVE</> symbols, and on
          Windows; on other systems, it must be zero.
*************** include 'filename'
*** 708,715 ****
        </indexterm>
        <listitem>
         <para>
!         Specifies the number of seconds between sending keepalives on an
!         otherwise idle connection.  A value of 0 uses the system default.
          This parameter is supported only on systems that support the
          <symbol>TCP_KEEPINTVL</> symbol, and on Windows; on other systems, it
          must be zero.
--- 709,717 ----
        </indexterm>
        <listitem>
         <para>
!         Specifies the number of seconds after which a TCP keepalive message
!         that is not acknowledged by the client should be retransmitted.
!         A value of 0 uses the system default.
          This parameter is supported only on systems that support the
          <symbol>TCP_KEEPINTVL</> symbol, and on Windows; on other systems, it
          must be zero.
*************** include 'filename'
*** 732,739 ****
        </indexterm>
        <listitem>
         <para>
!         Specifies the number of keepalive packets to send on an otherwise idle
!         connection.  A value of 0 uses the system default.  This parameter is
          supported only on systems that support the <symbol>TCP_KEEPCNT</>
          symbol; on other systems, it must be zero.
          In sessions connected via a Unix-domain socket, this parameter is
--- 734,742 ----
        </indexterm>
        <listitem>
         <para>
!         Specifies the number of TCP keepalives that can be lost before
!         the server's connection to the client is considered dead.  A value of 0
!         uses the system default.  This parameter is
          supported only on systems that support the <symbol>TCP_KEEPCNT</>
          symbol; on other systems, it must be zero.
          In sessions connected via a Unix-domain socket, this parameter is