diff --git a/language-snippets.ent b/language-snippets.ent
index fed94ed48f2e..67dab41dda0f 100644
--- a/language-snippets.ent
+++ b/language-snippets.ent
@@ -2066,6 +2066,29 @@ while <constant>PGSQL_BOTH</constant> will return both numerical and associative
  </entry>
 </row>'>
 
+<!-- SNMP entities -->
+
+<!ENTITY snmp.changelog.auth-protocol-sha2 '<row xmlns="http://docbook.org/ns/docbook">
+ <entry>8.1.0</entry>
+ <entry>
+  The <parameter>auth_protocol</parameter> now accepts <literal>"SHA256"</literal>
+  and <literal>"SHA512"</literal> when supported by libnetsnmp.
+ </entry>
+</row>'>
+
+<!ENTITY snmp.parameter.security-name '<simpara xmlns="http://docbook.org/ns/docbook">the security name, usually some kind of username</simpara>'>
+
+<!ENTITY snmp.parameter.security-level '<simpara xmlns="http://docbook.org/ns/docbook">the security level (noAuthNoPriv|authNoPriv|authPriv)</simpara>'>
+
+<!ENTITY snmp.parameter.auth-protocol '<simpara xmlns="http://docbook.org/ns/docbook">the authentication protocol (<literal>"MD5"</literal>, <literal>"SHA"</literal>,
+<literal>"SHA256"</literal>, or <literal>"SHA512"</literal>)</simpara>'>
+
+<!ENTITY snmp.parameter.auth-passphrase '<simpara xmlns="http://docbook.org/ns/docbook">the authentication pass phrase</simpara>'>
+
+<!ENTITY snmp.parameter.privacy-protocol '<simpara xmlns="http://docbook.org/ns/docbook">the privacy protocol (DES or AES)</simpara>'>
+
+<!ENTITY snmp.parameter.privacy-passphrase '<simpara xmlns="http://docbook.org/ns/docbook">the privacy pass phrase</simpara>'>
+
 <!-- Common pieces for reference part END -->
 
 <!ENTITY windows.builtin '<simpara xmlns="http://docbook.org/ns/docbook">The Windows version of PHP has built-in
diff --git a/reference/snmp/functions/snmp3-get.xml b/reference/snmp/functions/snmp3-get.xml
index 763d563227fb..7c2485517547 100644
--- a/reference/snmp/functions/snmp3-get.xml
+++ b/reference/snmp/functions/snmp3-get.xml
@@ -42,50 +42,37 @@
    <varlistentry>
     <term><parameter>security_name</parameter></term>
     <listitem>
-     <simpara>
-      the security name, usually some kind of username
-     </simpara>
+     &snmp.parameter.security-name;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>security_level</parameter></term>
     <listitem>
-     <simpara>
-      the security level (noAuthNoPriv|authNoPriv|authPriv)
-     </simpara>
+     &snmp.parameter.security-level;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>auth_protocol</parameter></term>
     <listitem>
-     <simpara>
-      the authentication protocol (<literal>"MD5"</literal>, <literal>"SHA"</literal>,
-      <literal>"SHA256"</literal>, or <literal>"SHA512"</literal>)
-     </simpara>
+     &snmp.parameter.auth-protocol;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>auth_passphrase</parameter></term>
     <listitem>
-     <simpara>
-      the authentication pass phrase
-     </simpara>
+     &snmp.parameter.auth-passphrase;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>privacy_protocol</parameter></term>
     <listitem>
-     <simpara>
-      the privacy protocol (DES or AES)
-     </simpara>
+     &snmp.parameter.privacy-protocol;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>privacy_passphrase</parameter></term>
     <listitem>
-     <simpara>
-      the privacy pass phrase
-     </simpara>
+     &snmp.parameter.privacy-passphrase;
     </listitem>
    </varlistentry>
    <varlistentry>
@@ -142,13 +129,7 @@
        are lower than -1 or too large.
       </entry>
      </row>
-     <row>
-      <entry>8.1.0</entry>
-      <entry>
-       The <parameter>auth_protocol</parameter> now accepts <literal>"SHA256"</literal>
-       and <literal>"SHA512"</literal> when supported by libnetsnmp.
-      </entry>
-     </row>
+     &snmp.changelog.auth-protocol-sha2;
     </tbody>
    </tgroup>
   </informaltable>
diff --git a/reference/snmp/functions/snmp3-getnext.xml b/reference/snmp/functions/snmp3-getnext.xml
index 961074947cb9..847bc2baaf85 100644
--- a/reference/snmp/functions/snmp3-getnext.xml
+++ b/reference/snmp/functions/snmp3-getnext.xml
@@ -43,50 +43,37 @@
    <varlistentry>
     <term><parameter>security_name</parameter></term>
     <listitem>
-     <simpara>
-      the security name, usually some kind of username
-     </simpara>
+     &snmp.parameter.security-name;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>security_level</parameter></term>
     <listitem>
-     <simpara>
-      the security level (noAuthNoPriv|authNoPriv|authPriv)
-     </simpara>
+     &snmp.parameter.security-level;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>auth_protocol</parameter></term>
     <listitem>
-     <simpara>
-      the authentication protocol (<literal>"MD5"</literal>, <literal>"SHA"</literal>,
-      <literal>"SHA256"</literal>, or <literal>"SHA512"</literal>)
-     </simpara>
+     &snmp.parameter.auth-protocol;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>auth_passphrase</parameter></term>
     <listitem>
-     <simpara>
-      the authentication pass phrase
-     </simpara>
+     &snmp.parameter.auth-passphrase;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>privacy_protocol</parameter></term>
     <listitem>
-     <simpara>
-      the privacy protocol (DES or AES)
-     </simpara>
+     &snmp.parameter.privacy-protocol;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>privacy_passphrase</parameter></term>
     <listitem>
-     <simpara>
-      the privacy pass phrase
-     </simpara>
+     &snmp.parameter.privacy-passphrase;
     </listitem>
    </varlistentry>
    <varlistentry>
@@ -135,13 +122,7 @@
      </row>
     </thead>
     <tbody>
-     <row>
-      <entry>8.1.0</entry>
-      <entry>
-       The <parameter>auth_protocol</parameter> now accepts <literal>"SHA256"</literal>
-       and <literal>"SHA512"</literal> when supported by libnetsnmp.
-      </entry>
-     </row>
+     &snmp.changelog.auth-protocol-sha2;
     </tbody>
    </tgroup>
   </informaltable>
diff --git a/reference/snmp/functions/snmp3-real-walk.xml b/reference/snmp/functions/snmp3-real-walk.xml
index a4a4e8c8f1cd..6a50e2dec08a 100644
--- a/reference/snmp/functions/snmp3-real-walk.xml
+++ b/reference/snmp/functions/snmp3-real-walk.xml
@@ -50,9 +50,7 @@
      <parameter>security_name</parameter>
     </term>
     <listitem>
-     <simpara>
-      the security name, usually some kind of username
-     </simpara>
+     &snmp.parameter.security-name;
     </listitem>
    </varlistentry>
    <varlistentry>
@@ -60,9 +58,7 @@
      <parameter>security_level</parameter>
     </term>
     <listitem>
-     <simpara>
-      the security level (noAuthNoPriv|authNoPriv|authPriv)
-     </simpara>
+     &snmp.parameter.security-level;
     </listitem>
    </varlistentry>
    <varlistentry>
@@ -70,9 +66,7 @@
      <parameter>auth_protocol</parameter>
     </term>
     <listitem>
-     <simpara>
-      the authentication protocol (MD5 or SHA)
-     </simpara>
+     &snmp.parameter.auth-protocol;
     </listitem>
    </varlistentry>
    <varlistentry>
@@ -80,9 +74,7 @@
      <parameter>auth_passphrase</parameter>
     </term>
     <listitem>
-     <simpara>
-      the authentication pass phrase
-     </simpara>
+     &snmp.parameter.auth-passphrase;
     </listitem>
    </varlistentry>
    <varlistentry>
@@ -90,10 +82,7 @@
      <parameter>privacy_protocol</parameter>
     </term>
     <listitem>
-     <simpara>
-      the authentication protocol (<literal>"MD5"</literal>, <literal>"SHA"</literal>,
-      <literal>"SHA256"</literal>, or <literal>"SHA512"</literal>)
-     </simpara>
+     &snmp.parameter.privacy-protocol;
     </listitem>
    </varlistentry>
    <varlistentry>
@@ -101,9 +90,7 @@
      <parameter>privacy_passphrase</parameter>
     </term>
     <listitem>
-     <simpara>
-      the privacy pass phrase
-     </simpara>
+     &snmp.parameter.privacy-passphrase;
     </listitem>
    </varlistentry>
    <varlistentry>
@@ -159,13 +146,7 @@
      </row>
     </thead>
     <tbody>
-     <row>
-      <entry>8.1.0</entry>
-      <entry>
-       The <parameter>auth_protocol</parameter> now accepts <literal>"SHA256"</literal>
-       and <literal>"SHA512"</literal> when supported by libnetsnmp.
-      </entry>
-     </row>
+     &snmp.changelog.auth-protocol-sha2;
     </tbody>
    </tgroup>
   </informaltable>
diff --git a/reference/snmp/functions/snmp3-set.xml b/reference/snmp/functions/snmp3-set.xml
index 1d00077fb84f..736b70f62720 100644
--- a/reference/snmp/functions/snmp3-set.xml
+++ b/reference/snmp/functions/snmp3-set.xml
@@ -47,49 +47,37 @@
    <varlistentry>
     <term><parameter>security_name</parameter></term>
     <listitem>
-     <simpara>
-      the security name, usually some kind of username
-     </simpara>
+     &snmp.parameter.security-name;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>security_level</parameter></term>
     <listitem>
-     <simpara>
-      the security level (noAuthNoPriv|authNoPriv|authPriv)
-     </simpara>
+     &snmp.parameter.security-level;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>auth_protocol</parameter></term>
     <listitem>
-     <simpara>
-      the authentication protocol (MD5 or SHA)
-     </simpara>
+     &snmp.parameter.auth-protocol;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>auth_passphrase</parameter></term>
     <listitem>
-     <simpara>
-      the authentication pass phrase
-     </simpara>
+     &snmp.parameter.auth-passphrase;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>privacy_protocol</parameter></term>
     <listitem>
-     <simpara>
-      the privacy protocol (DES or AES)
-     </simpara>
+     &snmp.parameter.privacy-protocol;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>privacy_passphrase</parameter></term>
     <listitem>
-     <simpara>
-      the privacy pass phrase
-     </simpara>
+     &snmp.parameter.privacy-passphrase;
     </listitem>
    </varlistentry>
    <varlistentry>
@@ -167,6 +155,7 @@
        are lower than -1 or too large.
       </entry>
      </row>
+     &snmp.changelog.auth-protocol-sha2;
     </tbody>
    </tgroup>
   </informaltable>
diff --git a/reference/snmp/functions/snmp3-walk.xml b/reference/snmp/functions/snmp3-walk.xml
index 9b6839ffc656..51ff9df0d33b 100644
--- a/reference/snmp/functions/snmp3-walk.xml
+++ b/reference/snmp/functions/snmp3-walk.xml
@@ -44,50 +44,37 @@
    <varlistentry>
     <term><parameter>security_name</parameter></term>
     <listitem>
-     <simpara>
-      the security name, usually some kind of username
-     </simpara>
+     &snmp.parameter.security-name;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>security_level</parameter></term>
     <listitem>
-     <simpara>
-      the security level (noAuthNoPriv|authNoPriv|authPriv)
-     </simpara>
+     &snmp.parameter.security-level;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>auth_protocol</parameter></term>
     <listitem>
-     <simpara>
-      the authentication protocol (<literal>"MD5"</literal>, <literal>"SHA"</literal>,
-      <literal>"SHA256"</literal>, or <literal>"SHA512"</literal>)
-     </simpara>
+     &snmp.parameter.auth-protocol;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>auth_passphrase</parameter></term>
     <listitem>
-     <simpara>
-      the authentication pass phrase
-     </simpara>
+     &snmp.parameter.auth-passphrase;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>privacy_protocol</parameter></term>
     <listitem>
-     <simpara>
-      the privacy protocol (DES or AES)
-     </simpara>
+     &snmp.parameter.privacy-protocol;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>privacy_passphrase</parameter></term>
     <listitem>
-     <simpara>
-      the privacy pass phrase
-     </simpara>
+     &snmp.parameter.privacy-passphrase;
     </listitem>
    </varlistentry>
    <varlistentry>
@@ -143,13 +130,7 @@
      </row>
     </thead>
     <tbody>
-     <row>
-      <entry>8.1.0</entry>
-      <entry>
-       The <parameter>auth_protocol</parameter> now accepts <literal>"SHA256"</literal>
-       and <literal>"SHA512"</literal> when supported by libnetsnmp.
-      </entry>
-     </row>
+     &snmp.changelog.auth-protocol-sha2;
     </tbody>
    </tgroup>
   </informaltable>
diff --git a/reference/snmp/snmp/setsecurity.xml b/reference/snmp/snmp/setsecurity.xml
index d2e07592ed32..168f2db8e2d5 100644
--- a/reference/snmp/snmp/setsecurity.xml
+++ b/reference/snmp/snmp/setsecurity.xml
@@ -30,41 +30,31 @@
    <varlistentry>
     <term><parameter>securityLevel</parameter></term>
     <listitem>
-     <simpara>
-      the security level (noAuthNoPriv|authNoPriv|authPriv)
-     </simpara>
+     &snmp.parameter.security-level;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>authProtocol</parameter></term>
     <listitem>
-     <simpara>
-      the authentication protocol (MD5 or SHA)
-     </simpara>
+     &snmp.parameter.auth-protocol;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>authPassphrase</parameter></term>
     <listitem>
-     <simpara>
-      the authentication pass phrase
-     </simpara>
+     &snmp.parameter.auth-passphrase;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>privacyProtocol</parameter></term>
     <listitem>
-     <simpara>
-      the privacy protocol (DES or AES)
-     </simpara>
+     &snmp.parameter.privacy-protocol;
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>privacyPassphrase</parameter></term>
     <listitem>
-     <simpara>
-      the privacy pass phrase
-     </simpara>
+     &snmp.parameter.privacy-passphrase;
     </listitem>
    </varlistentry>
    <varlistentry>
@@ -93,6 +83,23 @@
   </simpara>
  </refsect1>
 
+ <refsect1 role="changelog">
+  &reftitle.changelog;
+  <informaltable>
+   <tgroup cols="2">
+    <thead>
+     <row>
+      <entry>&Version;</entry>
+      <entry>&Description;</entry>
+     </row>
+    </thead>
+    <tbody>
+     &snmp.changelog.auth-protocol-sha2;
+    </tbody>
+   </tgroup>
+  </informaltable>
+ </refsect1>
+
  <refsect1 role="examples">
   &reftitle.examples;
   <example xml:id="snmp.setsecurity.example.basic">