diff --git a/networking_ccloud/ml2/agent/common/messages.py b/networking_ccloud/ml2/agent/common/messages.py
index 799d395..883280f 100644
--- a/networking_ccloud/ml2/agent/common/messages.py
+++ b/networking_ccloud/ml2/agent/common/messages.py
@@ -97,6 +97,8 @@ def __lt__(self, other):
 
 
 class VXLANMapping(pydantic.BaseModel):
+    # FIXME: medidate over if we really need this as a separate config object
+    #        could the VNI just be part of the vlan and that's that?
     vni: pydantic.conint(gt=0, lt=2**24)
     vlan: pydantic.conint(gt=0, lt=4094)
     enable_multisite: bool = False
diff --git a/networking_ccloud/ml2/agent/nxos/switch.py b/networking_ccloud/ml2/agent/nxos/switch.py
index 3f37ba7..8e6abf3 100644
--- a/networking_ccloud/ml2/agent/nxos/switch.py
+++ b/networking_ccloud/ml2/agent/nxos/switch.py
@@ -481,6 +481,8 @@ def _apply_config_update(self, config):
 
         config_req = self._make_config_from_update(config)
         try:
+            LOG.info("Applying config update %s",
+                     dict(delete=config_req.delete, replace=config_req.replace, update=config_req.update))
             self.api.set(delete=config_req.delete, replace=config_req.replace, update=config_req.update)
             self.metric_apply_config_update_success.labels(**self._def_labels).inc()
         except Exception as e: