diff --git a/configs/lemoy/lemoy-mdf-a8360-sw1.cfg b/configs/lemoy/lemoy-mdf-a8360-sw1.cfg
index 8961c80..bfe6b77 100755
--- a/configs/lemoy/lemoy-mdf-a8360-sw1.cfg
+++ b/configs/lemoy/lemoy-mdf-a8360-sw1.cfg
@@ -203,13 +203,13 @@ vlan 254
     description Transit VLAN
     dhcpv4-snooping
 vlan 507
-    name CT-A
+    name ring7_ct-a
     dhcpv4-snooping
 vlan 517
     name CT-B
     dhcpv4-snooping
 vlan 527
-    name SH-A
+    name ring7_sh-a
     dhcpv4-snooping
 vlan 537
     name SH-B
@@ -222,6 +222,10 @@ spanning-tree priority 2
 spanning-tree trap topology-change instance 0
 spanning-tree ignore-pvid-inconsistency
 spanning-tree vlan 10,20,30,35,50,70,72,168,230,254,507,517,527,537,699
+spanning-tree vlan 507 priority 15
+spanning-tree vlan 517 priority 15
+spanning-tree vlan 527 priority 15
+spanning-tree vlan 537 priority 15
 interface mgmt
     no shutdown
     ip static 192.168.33.2/24
@@ -426,16 +430,18 @@ interface vlan 254
     ip ospf network point-to-point
     ip pim-sparse enable
 interface vlan 507
-    description to ring 7
+    description ring7_ct-a
     ip address 10.250.207.33/24
     ip ospf 1 area 0.0.0.0
     no ip ospf passive
+    ip ospf cost 3000
     ip pim-sparse enable
 interface vlan 527
-    description to ring 7
+    description ring7_sh-a
     ip address 10.254.227.33/24
     ip ospf 1 area 0.0.0.0
     no ip ospf passive
+    ip ospf cost 1000
     ip pim-sparse enable
 snmp-server vrf default
 snmp-server system-description lemoy-mdf-a8360-sw1