diff --git a/xos/synchronizer/models/fabric-crossconnect.xproto b/xos/synchronizer/models/fabric-crossconnect.xproto
old mode 100755
new mode 100644
index 989ebc1..d0d78e4
--- a/xos/synchronizer/models/fabric-crossconnect.xproto
+++ b/xos/synchronizer/models/fabric-crossconnect.xproto
@@ -10,6 +10,10 @@
 message FabricCrossconnectServiceInstance (ServiceInstance){
     option verbose_name = "Fabric Crossconnect Service Instance";
     option owner_class_name="FabricCrossconnectService";
+
+    optional int32 s_tag = 1 [help_text = "s-tag"];
+    optional string switch_datapath_id = 2 [help_text = "switch datapath id"];
+    optional int32 source_port = 3 [help_text = "source port of fabric crossconnect"];
 }
 
 message BNGPortMapping (XOSBase) {
diff --git a/xos/synchronizer/models/models.py b/xos/synchronizer/models/models.py
old mode 100755
new mode 100644
index 75ebe1d..8c75a2e
--- a/xos/synchronizer/models/models.py
+++ b/xos/synchronizer/models/models.py
@@ -48,5 +48,6 @@
 
     def save(self, *args, **kwargs):
         self.validate_range(self.s_tag)
+
         super(BNGPortMapping, self).save(*args, **kwargs)