diff --git a/examples/dt/osasinfra-ipv6/service-values.yaml b/examples/dt/osasinfra-ipv6/service-values.yaml
index 448632911..d513d01f2 100644
--- a/examples/dt/osasinfra-ipv6/service-values.yaml
+++ b/examples/dt/osasinfra-ipv6/service-values.yaml
@@ -8,6 +8,12 @@ metadata:
     config.kubernetes.io/local-config: "true"
 data:
   preserveJobs: false
+  neutron:
+    # To avoid hitting https://access.redhat.com/solutions/7088208 during
+    # shiftstack installation:
+    customServiceConfig: |
+      [DEFAULT]
+      global_physnet_mtu = 9000
   cinderAPI:
     replicas: 3
   cinderBackup: