diff --git a/tests/functional/rhcs_setup.yml b/tests/functional/rhcs_setup.yml
index 93055b435..4618a72a6 100644
--- a/tests/functional/rhcs_setup.yml
+++ b/tests/functional/rhcs_setup.yml
@@ -35,6 +35,12 @@
         group: root
       when: not is_atomic
 
+    - name: set MTU on eth0
+      command: "ifconfig eth0 mtu 1400 up"
+
+    - name: set MTU on eth1
+      command: "ifconfig eth1 mtu 1400 up"
+
 - hosts: mons
   gather_facts: false
   become: yes
@@ -65,6 +71,9 @@
       when:
         - not is_atomic
 
+    - name: set MTU on eth2
+      command: "ifconfig eth2 mtu 1400 up"
+
 - hosts: mdss:rgws:clients 
   gather_facts: false
   become: yes