diff --git a/lib/ansible/modules/network/onyx/onyx_linkagg.py b/lib/ansible/modules/network/onyx/onyx_linkagg.py
index 776d051677e..acfd5b488c4 100644
--- a/lib/ansible/modules/network/onyx/onyx_linkagg.py
+++ b/lib/ansible/modules/network/onyx/onyx_linkagg.py
@@ -109,6 +109,7 @@ class OnyxLinkAggModule(BaseOnyxModule):
     CHANNEL_GROUP = 'channel-group'
     MLAG_PORT_CHANNEL = 'mlag-port-channel'
     MLAG_CHANNEL_GROUP = 'mlag-channel-group'
+    MLAG_SUMMARY = 'MLAG Port-Channel Summary'
 
     LAG_TYPE = 'lag'
     MLAG_TYPE = 'mlag'
@@ -225,7 +226,21 @@ class OnyxLinkAggModule(BaseOnyxModule):
 
     def _parse_port_channels_summary(self, lag_type, lag_summary):
         if lag_type == self.MLAG_TYPE:
-            lag_summary = lag_summary.get('MLAG Port-Channel Summary', {})
+            if self._os_version >= self.ONYX_API_VERSION:
+                found_summary = False
+                for summary_item in lag_summary:
+                    if self.MLAG_SUMMARY in summary_item:
+                        lag_summary = summary_item[self.MLAG_SUMMARY]
+                        if lag_summary:
+                            lag_summary = lag_summary[0]
+                        else:
+                            lag_summary = dict()
+                        found_summary = True
+                        break
+                if not found_summary:
+                    lag_summary = dict()
+            else:
+                lag_summary = lag_summary.get(self.MLAG_SUMMARY, dict())
         for lag_key, lag_data in iteritems(lag_summary):
             lag_name, state = self._extract_lag_name(lag_key)
             if not lag_name:
@@ -240,6 +255,7 @@ class OnyxLinkAggModule(BaseOnyxModule):
 
     def load_current_config(self):
         self._current_config = dict()
+        self._os_version = self._get_os_version()
         lag_types = set([lag_obj['type'] for lag_obj in self._required_config])
         for lag_type in lag_types:
             if_type = self.IF_TYPE_MAP[lag_type]
diff --git a/test/units/modules/network/onyx/test_onyx_linkagg.py b/test/units/modules/network/onyx/test_onyx_linkagg.py
index 864e7dd0307..ba7f970302a 100644
--- a/test/units/modules/network/onyx/test_onyx_linkagg.py
+++ b/test/units/modules/network/onyx/test_onyx_linkagg.py
@@ -26,15 +26,20 @@ class TestOnyxLinkaggModule(TestOnyxModule):
         self.mock_load_config = patch(
             'ansible.module_utils.network.onyx.onyx.load_config')
         self.load_config = self.mock_load_config.start()
+        self.mock_get_version = patch.object(
+            onyx_linkagg.OnyxLinkAggModule, "_get_os_version")
+        self.get_version = self.mock_get_version.start()
 
     def tearDown(self):
         super(TestOnyxLinkaggModule, self).tearDown()
         self.mock_get_config.stop()
         self.mock_load_config.stop()
+        self.mock_get_version.stop()
 
     def load_fixture(self, config_file):
         self.get_config.return_value = load_fixture(config_file)
         self.load_config.return_value = None
+        self.get_version.return_value = "3.6.5000"
 
     def load_port_channel_fixture(self):
         config_file = 'onyx_port_channel_show.cfg'