diff --git a/src/sonic-config-engine/tests/radv-test-sample-graph.xml b/src/sonic-config-engine/tests/radv-test-sample-graph.xml
index 6945c8e175..a45e38f640 100644
--- a/src/sonic-config-engine/tests/radv-test-sample-graph.xml
+++ b/src/sonic-config-engine/tests/radv-test-sample-graph.xml
@@ -90,7 +90,7 @@
     </PeeringSessions>
     <Routers xmlns:a="http://schemas.datacontract.org/2004/07/Microsoft.Search.Autopilot.Evolution">
       <a:BGPRouterDeclaration>
-          <a:ASN>0</a:ASN>
+          <a:ASN>1</a:ASN>
           <a:BgpGroups/>
           <a:Hostname>BGPMonitor</a:Hostname>
           <a:Peers>
diff --git a/src/sonic-config-engine/tests/sample-graph-resource-type.xml b/src/sonic-config-engine/tests/sample-graph-resource-type.xml
index f09e4112d8..aecc1bc324 100644
--- a/src/sonic-config-engine/tests/sample-graph-resource-type.xml
+++ b/src/sonic-config-engine/tests/sample-graph-resource-type.xml
@@ -72,7 +72,7 @@
     </PeeringSessions>
     <Routers xmlns:a="http://schemas.datacontract.org/2004/07/Microsoft.Search.Autopilot.Evolution">
       <a:BGPRouterDeclaration>
-          <a:ASN>0</a:ASN>
+          <a:ASN>1</a:ASN>
           <a:BgpGroups/>
           <a:Hostname>BGPMonitor</a:Hostname>
           <a:Peers>
diff --git a/src/sonic-config-engine/tests/sample-graph-subintf.xml b/src/sonic-config-engine/tests/sample-graph-subintf.xml
index 29568be727..fe18baa79d 100644
--- a/src/sonic-config-engine/tests/sample-graph-subintf.xml
+++ b/src/sonic-config-engine/tests/sample-graph-subintf.xml
@@ -72,7 +72,7 @@
     </PeeringSessions>
     <Routers xmlns:a="http://schemas.datacontract.org/2004/07/Microsoft.Search.Autopilot.Evolution">
       <a:BGPRouterDeclaration>
-          <a:ASN>0</a:ASN>
+          <a:ASN>1</a:ASN>
           <a:BgpGroups/>
           <a:Hostname>BGPMonitor</a:Hostname>
           <a:Peers>
diff --git a/src/sonic-config-engine/tests/simple-sample-graph.xml b/src/sonic-config-engine/tests/simple-sample-graph.xml
index 388627f8cd..aef72017d7 100644
--- a/src/sonic-config-engine/tests/simple-sample-graph.xml
+++ b/src/sonic-config-engine/tests/simple-sample-graph.xml
@@ -72,7 +72,7 @@
     </PeeringSessions>
     <Routers xmlns:a="http://schemas.datacontract.org/2004/07/Microsoft.Search.Autopilot.Evolution">
       <a:BGPRouterDeclaration>
-          <a:ASN>0</a:ASN>
+          <a:ASN>1</a:ASN>
           <a:BgpGroups/>
           <a:Hostname>BGPMonitor</a:Hostname>
           <a:Peers>
diff --git a/src/sonic-config-engine/tests/t0-sample-graph.xml b/src/sonic-config-engine/tests/t0-sample-graph.xml
index f0da951496..6d9e21c4f8 100644
--- a/src/sonic-config-engine/tests/t0-sample-graph.xml
+++ b/src/sonic-config-engine/tests/t0-sample-graph.xml
@@ -90,7 +90,7 @@
     </PeeringSessions>
     <Routers xmlns:a="http://schemas.datacontract.org/2004/07/Microsoft.Search.Autopilot.Evolution">
       <a:BGPRouterDeclaration>
-          <a:ASN>0</a:ASN>
+          <a:ASN>1</a:ASN>
           <a:BgpGroups/>
           <a:Hostname>BGPMonitor</a:Hostname>
           <a:Peers>
diff --git a/src/sonic-config-engine/tests/test_cfggen.py b/src/sonic-config-engine/tests/test_cfggen.py
index e5ef35274d..09f507f3d9 100644
--- a/src/sonic-config-engine/tests/test_cfggen.py
+++ b/src/sonic-config-engine/tests/test_cfggen.py
@@ -685,7 +685,7 @@ class TestCfgGen(TestCase):
         output = self.run_script(argument)
         self.assertEqual(
             utils.to_dict(output.strip()),
-            utils.to_dict("{'10.20.30.40': {'rrclient': 0, 'name': 'BGPMonitor', 'local_addr': '10.1.0.32', 'nhopself': 0, 'holdtime': '10', 'asn': '0', 'keepalive': '3'}}")
+            utils.to_dict("{'10.20.30.40': {'rrclient': 0, 'name': 'BGPMonitor', 'local_addr': '10.1.0.32', 'nhopself': 0, 'holdtime': '10', 'asn': '1', 'keepalive': '3'}}")
         )
 
     def test_minigraph_bgp_voq_chassis_peer(self):