diff --git a/python/nav/ipdevpoll/dataloader.py b/python/nav/ipdevpoll/dataloader.py
index 8eefd5355f..b37a56dbb9 100644
--- a/python/nav/ipdevpoll/dataloader.py
+++ b/python/nav/ipdevpoll/dataloader.py
@@ -178,9 +178,9 @@ def is_netbox_changed(netbox1, netbox2):
         'type',
         'up',
         'snmp_up',
+        'snmp_parameters',
         'deleted_at',
     ):
-        # TODO Need some way to detect an updated SNMP profile
         if getattr(netbox1, attr) != getattr(netbox2, attr):
             _logger.debug(
                 "%s.%s changed from %r to %r",
diff --git a/python/nav/ipdevpoll/shadows/netbox.py b/python/nav/ipdevpoll/shadows/netbox.py
index bc4ccb19e2..59d07599fb 100644
--- a/python/nav/ipdevpoll/shadows/netbox.py
+++ b/python/nav/ipdevpoll/shadows/netbox.py
@@ -62,13 +62,15 @@ def is_up(self):
         return self.up == manage.Netbox.UP_UP
 
     def copy(self, other):
+        """In addition to copying the 'official' attrs of another Netbox object,
+        this also copies 'computed'/'internal' attributes that are only part of the
+        Netbox shadow class definition.
+        """
         super(Netbox, self).copy(other)
         for attr in (
             "snmp_up",
             "last_updated",
-            "snmp_version",
-            "read_only",
-            "read_write",
+            "snmp_parameters",
         ):
             if hasattr(other, attr):
                 setattr(self, attr, getattr(other, attr))