diff --git a/nfv/nfv-client/nfv_client/openstack/openstack.py b/nfv/nfv-client/nfv_client/openstack/openstack.py
index 2adfb7af..8ccf5f18 100755
--- a/nfv/nfv-client/nfv_client/openstack/openstack.py
+++ b/nfv/nfv-client/nfv_client/openstack/openstack.py
@@ -59,7 +59,7 @@ def get_token(auth_uri, project_name, project_domain_name, username, password,
                         "domain": {"name": project_domain_name}
                     }}}})
 
-        request_info.data = payload
+        request_info.data = payload.encode()
 
         request = urllib.request.urlopen(request_info, timeout=30)
         # Identity API v3 returns token id in X-Subject-Token
diff --git a/nfv/nfv-client/nfv_client/openstack/rest_api.py b/nfv/nfv-client/nfv_client/openstack/rest_api.py
index 6d7056e4..eb1fd337 100755
--- a/nfv/nfv-client/nfv_client/openstack/rest_api.py
+++ b/nfv/nfv-client/nfv_client/openstack/rest_api.py
@@ -32,7 +32,7 @@ def request(token_id, method, api_cmd, api_cmd_headers=None,
                 request_info.add_header(header_type, header_value)
 
         if api_cmd_payload is not None:
-            request_info.data = api_cmd_payload
+            request_info.data = api_cmd_payload.encode()
 
         url_request = urllib.request.urlopen(request_info,
                                              timeout=timeout_in_secs)
diff --git a/nfv/nfv-plugins/nfv_plugins/nfvi_plugins/openstack/openstack.py b/nfv/nfv-plugins/nfv_plugins/nfvi_plugins/openstack/openstack.py
index 0848495a..0cd1030e 100755
--- a/nfv/nfv-plugins/nfv_plugins/nfvi_plugins/openstack/openstack.py
+++ b/nfv/nfv-plugins/nfv_plugins/nfvi_plugins/openstack/openstack.py
@@ -58,7 +58,7 @@ def get_token(directory):
                         "name": directory.auth_project,
                         "domain": {"name": directory.auth_project_domain_name}
                     }}}})
-        request_info.data = payload
+        request_info.data = payload.encode()
 
         # WARNING: Any change to the timeout must be reflected in the config.ini
         # file for the nfvi plugins.
diff --git a/nfv/nfv-plugins/nfv_plugins/nfvi_plugins/openstack/rest_api.py b/nfv/nfv-plugins/nfv_plugins/nfvi_plugins/openstack/rest_api.py
index d44e10c6..20da1a9c 100755
--- a/nfv/nfv-plugins/nfv_plugins/nfvi_plugins/openstack/rest_api.py
+++ b/nfv/nfv-plugins/nfv_plugins/nfvi_plugins/openstack/rest_api.py
@@ -309,7 +309,7 @@ def _rest_api_request(token_id, method, api_cmd, api_cmd_headers,
                 request_info.add_header(header_type, header_value)
 
         if api_cmd_payload is not None:
-            request_info.data = api_cmd_payload
+            request_info.data = api_cmd_payload.encode()
 
         DLOG.verbose("Rest-API method=%s, api_cmd=%s, api_cmd_headers=%s, "
                      "api_cmd_payload=%s" % (method, api_cmd, api_cmd_headers,
diff --git a/nfv/nfv-vim/nfv_vim/api/openstack/_openstack.py b/nfv/nfv-vim/nfv_vim/api/openstack/_openstack.py
index 5861f01a..3b5c9027 100755
--- a/nfv/nfv-vim/nfv_vim/api/openstack/_openstack.py
+++ b/nfv/nfv-vim/nfv_vim/api/openstack/_openstack.py
@@ -53,7 +53,7 @@ def validate_token(directory, admin_token, token_id):
                 }
             }})
 
-        request_info.data = payload
+        request_info.data = payload.encode()
 
         request = urllib.request.urlopen(request_info)
         # Identity API v3 returns token id in X-Subject-Token
@@ -114,7 +114,7 @@ def get_token(directory):
                         "name": directory.auth_project,
                         "domain": {"name": directory.auth_project_domain_name}
                     }}}})
-        request_info.data = payload
+        request_info.data = payload.encode()
 
         request = urllib.request.urlopen(request_info)
         # Identity API v3 returns token id in X-Subject-Token
diff --git a/nfv/nfv-vim/nfv_vim/api/openstack/_rest_api.py b/nfv/nfv-vim/nfv_vim/api/openstack/_rest_api.py
index 8c5c4239..c23c7a7e 100755
--- a/nfv/nfv-vim/nfv_vim/api/openstack/_rest_api.py
+++ b/nfv/nfv-vim/nfv_vim/api/openstack/_rest_api.py
@@ -35,7 +35,7 @@ def rest_api_request(token, method, url, headers=None, body=None):
             request_info.add_header("X-Auth-Token", token.get_id())
 
         if body is not None and '' != body:
-            request_info.data = body
+            request_info.data = body.encode()
 
         # Enable Debug
         # handler = urllib.request.HTTPHandler(debuglevel=1)