diff --git a/group_vars/dnagw.yml b/group_vars/dnagw.yml
index fe380e8..b53027a 100644
--- a/group_vars/dnagw.yml
+++ b/group_vars/dnagw.yml
@@ -1,4 +1,7 @@
 ---
+# increase memory size
+mem_size: 512
+
 network_vip_interfaces:
   - device: vio0
     vhid: 1