diff --git a/configs/lucy/lucy-mdf-a8360-sw1.cfg b/configs/lucy/lucy-mdf-a8360-sw1.cfg
index a00aad2..4c88747 100644
--- a/configs/lucy/lucy-mdf-a8360-sw1.cfg
+++ b/configs/lucy/lucy-mdf-a8360-sw1.cfg
@@ -207,16 +207,16 @@ vlan 254
     description Transit VLAN
     dhcpv4-snooping
 vlan 505
-    name CT-A
+    name ring5_ct-a
     dhcpv4-snooping
 vlan 515
-    name CT-B
+    name ring5_ct-b
     dhcpv4-snooping
 vlan 525
-    name SH-A
+    name ring5_sh-a
     dhcpv4-snooping
 vlan 535
-    name SH-B
+    name ring5_sh-b
     dhcpv4-snooping
 vlan 699
     name NativeVLAN
@@ -226,6 +226,10 @@ spanning-tree priority 2
 spanning-tree trap topology-change instance 0
 spanning-tree ignore-pvid-inconsistency
 spanning-tree vlan 10,20,30,35,50,70,72,168,203,230,254,505,515,525,535,699
+spanning-tree vlan 505 priority 15
+spanning-tree vlan 515 priority 15
+spanning-tree vlan 525 priority 15
+spanning-tree vlan 535 priority 15
 interface mgmt
     no shutdown
     ip static 192.168.86.2/24
@@ -382,28 +386,32 @@ interface vlan 230
     ip igmp enable
     ip pim-sparse enable
 interface vlan 505
-    description to ring 5
+    description ring5_ct-a
     ip address 10.250.205.86/24
     ip ospf 1 area 0.0.0.0
     no ip ospf passive
+    ip ospf cost 3000
     ip pim-sparse enable
 interface vlan 515
-    description to ring 5
+    description ring5_ct-b
     ip address 10.254.215.86/24
     ip ospf 1 area 0.0.0.0
     no ip ospf passive
+    ip ospf cost 4000
     ip pim-sparse enable
 interface vlan 525
-    description to ring 5
+    description ring5_sh-a
     ip address 10.254.225.86/24
     ip ospf 1 area 0.0.0.0
     no ip ospf passive
+    ip ospf cost 1000
     ip pim-sparse enable
 interface vlan 535
-    description to ring 5
+    description ring5_sh-b
     ip address 10.254.235.86/24
     ip ospf 1 area 0.0.0.0
     no ip ospf passive
+    ip ospf cost 2000
     ip pim-sparse enable
 snmp-server vrf default
 snmp-server system-description lucy-mdf-a8360-sw1