diff --git a/sql/database-create.sql b/sql/database-create.sql
index a5d499b3982f8c79ac3e92d1596e388491ff53e7..573bee41d261a964d305152e57ed686179adb83c 100644
--- a/sql/database-create.sql
+++ b/sql/database-create.sql
@@ -606,6 +606,8 @@ CREATE TABLE new_interfaces (
   switch_id varchar(10) default NULL,
   switch_card tinyint(3) default NULL,
   switch_port tinyint(3) default NULL,
+  cable smallint(6) default NULL,
+  len tinyint(4) default NULL,
   PRIMARY KEY  (new_node_id,card)
 ) TYPE=MyISAM;
 
diff --git a/sql/database-migrate.txt b/sql/database-migrate.txt
index 68f85735b8a62178abaa2e5a3b124ba3802469ce..92fb76d3edd788c34ef2aac3d0de3a6025915c41 100644
--- a/sql/database-migrate.txt
+++ b/sql/database-migrate.txt
@@ -1306,3 +1306,9 @@ last_net_act,last_cpu_act,last_ext_act);
 	   not null default 0;
        alter table experiments add column ipassign_args varchar(255) \
 	   default NULL;
+
+1.127: Add cable and len columns to the new_interfaces table, so that when
+       we're adding a small number of nodes by hand, we can set these:
+
+       alter table new_interfaces add cable smallint;
+       alter table new_interfaces add len tinyint;