diff --git a/identifiers/os_product.txt b/identifiers/os_product.txt
index d65e0532..cbb66729 100644
--- a/identifiers/os_product.txt
+++ b/identifiers/os_product.txt
@@ -117,6 +117,8 @@ IDP
 ILOM
 IMC
 IOS
+IOS-XE
+IOS-XR
 IPReach
 IPSO
 IPVPN Firmware
diff --git a/xml/snmp_sysdescr.xml b/xml/snmp_sysdescr.xml
index fdb5b5a0..9e569b4f 100644
--- a/xml/snmp_sysdescr.xml
+++ b/xml/snmp_sysdescr.xml
@@ -1677,6 +1677,30 @@ Copyright (c) 1999-2004 by cisco Systems, Inc.</example>
     <param pos="1" name="hw.product"/>
   </fingerprint>
 
+  <fingerprint pattern="^Cisco IOS XR Software.*Version ([\w.]*)">
+    <description>Cisco IOS XR Software</description>
+    <example os.version="4.3.2">Cisco IOS XR Software (Cisco IOS XRv Series),  Version 4.3.2[Default]</example>
+    <example os.version="7.4.1">Cisco IOS XR Software (ASR9K), Version 7.4.1  Copyright (c) 2013-2021 by Cisco Systems, Inc.</example>
+    <param pos="0" name="os.certainty" value="0.9"/>
+    <param pos="0" name="os.vendor" value="Cisco"/>
+    <param pos="0" name="os.product" value="IOS-XR"/>
+    <param pos="0" name="os.family" value="IOS"/>
+    <param pos="0" name="os.device" value="Router"/>
+    <param pos="1" name="os.version"/>
+  </fingerprint>
+
+  <fingerprint pattern="^Cisco IOS Software.*(?:Virtual XE|IOS-XE) Software.*Version ([\w.()]*)">
+    <description>Cisco IOS XE Software</description>
+    <example os.version="16.6.8">Cisco IOS Software [Everest], Virtual XE Software (X86_64_LINUX_IOSD-UNIVERSALK9-M), Version 16.6.8, RELEASE SOFTWARE (fc3)</example>
+    <example os.version="15.1(3)S2">Cisco IOS Software, IOS-XE Software (PPC_LINUX_IOSD-ADVENTERPRISEK9-M), Version 15.1(3)S2, RELEASE SOFTWARE (fc1)</example>
+    <param pos="0" name="os.certainty" value="0.9"/>
+    <param pos="0" name="os.vendor" value="Cisco"/>
+    <param pos="0" name="os.product" value="IOS-XE"/>
+    <param pos="0" name="os.family" value="IOS"/>
+    <param pos="0" name="os.device" value="Router"/>
+    <param pos="1" name="os.version"/>
+  </fingerprint>
+
   <fingerprint pattern="^Cisco (?:Internetwork Operating System|IOS) Software,? (?:\r|\n|.)+Version\s+([^,]+),">
     <description>Cisco IOS</description>
     <!-- Cisco Internetwork Operating System Software \r\nIOS (tm) C1700 Software (C1700-Y-M), Version 12.2(4)YB, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)\r\nSynched to technology version 12.2(6.8)T2\r\nTAC Support: http://www.cisco.com/tac\r\nCopyright (c) 1986-2002 by ci -->