diff --git a/vmware_nsx/plugins/nsx_v/vshield/vcns.py b/vmware_nsx/plugins/nsx_v/vshield/vcns.py
index c572a0eadf..1cb4ca5f9e 100644
--- a/vmware_nsx/plugins/nsx_v/vshield/vcns.py
+++ b/vmware_nsx/plugins/nsx_v/vshield/vcns.py
@@ -824,6 +824,12 @@ class Vcns(object):
             uri += "?async=true"
         return self.do_request(HTTP_PUT, uri, request_config)
 
+    def change_edge_appliance_size(self, edge_id, size):
+        """Change the size of edge appliances."""
+        uri = ("/api/4.0/edges/%s/appliances/?size=%s" %
+               (edge_id, size))
+        return self.do_request(HTTP_POST, uri)
+
     def upload_edge_certificate(self, edge_id, request):
         """Creates a certificate on the specified Edge appliance."""
         uri = '%s/%s/%s' % (TRUSTSTORE_PREFIX, CERTIFICATE, edge_id)
diff --git a/vmware_nsx/shell/admin/plugins/nsxv/resources/edges.py b/vmware_nsx/shell/admin/plugins/nsxv/resources/edges.py
index 04f4c5cb6a..7155916248 100644
--- a/vmware_nsx/shell/admin/plugins/nsxv/resources/edges.py
+++ b/vmware_nsx/shell/admin/plugins/nsxv/resources/edges.py
@@ -28,6 +28,8 @@ from neutron.common import exceptions
 
 from vmware_nsx._i18n import _LE, _LI
 from vmware_nsx.db import nsxv_db
+import vmware_nsx.plugins.nsx_v.vshield.common.constants as nsxv_constants
+import vmware_nsx.plugins.nsx_v.vshield.common.exceptions as nsxv_exceptions
 
 LOG = logging.getLogger(__name__)
 nsxv = utils.get_nsxv_client()
@@ -116,6 +118,34 @@ def nsx_delete_orphaned_edges(resource, event, trigger, **kwargs):
         pprint.pformat(get_orphaned_edges()))
 
 
+def change_edge_ha(properties):
+    ha = bool(properties.get('highavailability').lower() == "true")
+    request = {
+        'featureType': 'highavailability_4.0',
+        'enabled': ha}
+    try:
+        nsxv.enable_ha(properties.get('edge-id'), request, async=False)
+    except nsxv_exceptions.ResourceNotFound as e:
+        LOG.error(_LE("Edge %s not found"), properties.get('edge-id'))
+    except exceptions.NeutronException as e:
+        LOG.error(_LE("%s"), str(e))
+
+
+def change_edge_appliance_size(properties):
+    size = properties.get('size')
+    if size not in nsxv_constants.ALLOWED_EDGE_SIZES:
+        LOG.error(_LE("Edge appliance size not in %(size)s"),
+                  {'size': nsxv_constants.ALLOWED_EDGE_SIZES})
+        return
+    try:
+        nsxv.change_edge_appliance_size(
+            properties.get('edge-id'), size)
+    except nsxv_exceptions.ResourceNotFound as e:
+        LOG.error(_LE("Edge %s not found"), properties.get('edge-id'))
+    except exceptions.NeutronException as e:
+        LOG.error(_LE("%s"), str(e))
+
+
 @admin_utils.output_header
 def nsx_update_edge(resource, event, trigger, **kwargs):
     """Update edge properties"""
@@ -132,14 +162,9 @@ def nsx_update_edge(resource, event, trigger, **kwargs):
     LOG.info(_LI("Updating NSXv edge: %(edge)s with properties\n%(prop)s"),
              {'edge': properties.get('edge-id'), 'prop': properties})
     if properties.get('highavailability'):
-        ha = bool(properties.get('highavailability').lower() == "true")
-        ha_request = {
-            'featureType': 'highavailability_4.0',
-            'enabled': ha}
-    try:
-        nsxv.enable_ha(properties.get('edge-id'), ha_request, async=False)
-    except exceptions.NeutronException as e:
-        LOG.error(_LE("%s"), str(e))
+        change_edge_ha(properties)
+    elif properties.get('size'):
+        change_edge_appliance_size(properties)
 
 
 registry.subscribe(nsx_list_edges,
diff --git a/vmware_nsx/tests/unit/nsx_v/vshield/fake_vcns.py b/vmware_nsx/tests/unit/nsx_v/vshield/fake_vcns.py
index 3702e3e3a8..1359674058 100644
--- a/vmware_nsx/tests/unit/nsx_v/vshield/fake_vcns.py
+++ b/vmware_nsx/tests/unit/nsx_v/vshield/fake_vcns.py
@@ -1122,3 +1122,10 @@ class FakeVcns(object):
         }
         response = ''
         return (header, response)
+
+    def change_edge_appliance_size(self, edge_id, size):
+        header = {
+            'status': 204
+        }
+        response = {}
+        return (header, response)