diff --git a/tcp_tests/templates/virtual-offline-pike-ovs-dpdk/underlay.yaml b/tcp_tests/templates/virtual-offline-pike-ovs-dpdk/underlay.yaml
index 178ef29..ab4dbe5 100644
--- a/tcp_tests/templates/virtual-offline-pike-ovs-dpdk/underlay.yaml
+++ b/tcp_tests/templates/virtual-offline-pike-ovs-dpdk/underlay.yaml
@@ -26,6 +26,11 @@
 {% set HOSTNAME_CMP02 = os_env('HOSTNAME_CMP02', 'cmp02.' + DOMAIN_NAME) %}
 {% set HOSTNAME_GTW01 = os_env('HOSTNAME_GTW01', 'gtw01.' + DOMAIN_NAME) %}
 {% set HOSTNAME_PRX01 = os_env('HOSTNAME_PRX01', 'prx01.' + DOMAIN_NAME) %}
+{% set HOSTNAME_DNS01 = os_env('HOSTNAME_DNS01', 'dns01.' + DOMAIN_NAME) %}
+{% set HOSTNAME_DNS02 = os_env('HOSTNAME_DNS02', 'dns02.' + DOMAIN_NAME) %}
+{% set HOSTNAME_MDB01 = os_env('HOSTNAME_MDB01', 'mdb01.' + DOMAIN_NAME) %}
+{% set HOSTNAME_MDB02 = os_env('HOSTNAME_MDB02', 'mdb02.' + DOMAIN_NAME) %}
+{% set HOSTNAME_MDB03 = os_env('HOSTNAME_MDB03', 'mdb03.' + DOMAIN_NAME) %}
 {% set HOSTNAME_VS = 'vs.' + DOMAIN_NAME %}
 
 template:
@@ -47,6 +52,11 @@
             default_{{ HOSTNAME_CMP02 }}: +106
             default_{{ HOSTNAME_GTW01 }}: +110
             default_{{ HOSTNAME_PRX01 }}: +121
+            default_{{ HOSTNAME_MDB01 }}: +45
+            default_{{ HOSTNAME_MDB02 }}: +46
+            default_{{ HOSTNAME_MDB03 }}: +47
+            default_{{ HOSTNAME_DNS01 }}: +111
+            default_{{ HOSTNAME_DNS02 }}: +112
             default_{{ HOSTNAME_VS }}: +178
           ip_ranges:
             dhcp: [+90, -10]
@@ -66,6 +76,11 @@
             default_{{ HOSTNAME_CMP02 }}: +106
             default_{{ HOSTNAME_GTW01 }}: +110
             default_{{ HOSTNAME_PRX01 }}: +121
+            default_{{ HOSTNAME_MDB01 }}: +45
+            default_{{ HOSTNAME_MDB02 }}: +46
+            default_{{ HOSTNAME_MDB03 }}: +47
+            default_{{ HOSTNAME_DNS01 }}: +111
+            default_{{ HOSTNAME_DNS02 }}: +112
             default_{{ HOSTNAME_VS }}: +178
           ip_ranges:
             dhcp: [+90, -10]
@@ -82,8 +97,13 @@
             default_{{ HOSTNAME_CTL03 }}: +103
             default_{{ HOSTNAME_CMP01 }}: +105
             default_{{ HOSTNAME_CMP02 }}: +106
+            default_{{ HOSTNAME_MDB01 }}: +45
+            default_{{ HOSTNAME_MDB02 }}: +46
+            default_{{ HOSTNAME_MDB03 }}: +47
             default_{{ HOSTNAME_GTW01 }}: +110
             default_{{ HOSTNAME_PRX01 }}: +121
+            default_{{ HOSTNAME_DNS01 }}: +111
+            default_{{ HOSTNAME_DNS02 }}: +112
           ip_ranges:
             dhcp: [+10, -10]
       external-pool01:
@@ -99,7 +119,12 @@
             default_{{ HOSTNAME_CMP01 }}: +105
             default_{{ HOSTNAME_CMP02 }}: +106
             default_{{ HOSTNAME_GTW01 }}: +110
+            default_{{ HOSTNAME_MDB01 }}: +45
+            default_{{ HOSTNAME_MDB02 }}: +46
+            default_{{ HOSTNAME_MDB03 }}: +47
             default_{{ HOSTNAME_PRX01 }}: +121
+            default_{{ HOSTNAME_DNS01 }}: +111
+            default_{{ HOSTNAME_DNS02 }}: +112
           ip_ranges:
             dhcp: [+90, -10]
 
@@ -511,3 +536,133 @@
 
               interfaces: *interfaces
               network_config: *network_config
+
+          - name: {{ HOSTNAME_DNS01 }}
+            role: salt_minion
+            params:
+              vcpu: !os_env SLAVE_NODE_CPU, 1
+              memory: !os_env SLAVE_NODE_MEMORY, 2048
+              boot:
+                - hd
+              cloud_init_volume_name: iso
+              cloud_init_iface_up: ens3
+              volumes:
+                - name: system
+                  capacity: !os_env NODE_VOLUME_SIZE, 150
+                  backing_store: mcp_ubuntu_1604_image
+                  format: qcow2
+                - name: iso  # Volume with name 'iso' will be used
+                             # for store image with cloud-init metadata.
+                  capacity: 1
+                  format: raw
+                  device: cdrom
+                  bus: ide
+                  cloudinit_meta_data: *cloudinit_meta_data
+                  cloudinit_user_data: *cloudinit_user_data_1604
+
+              interfaces: *all_interfaces
+              network_config: *all_network_config
+
+          - name: {{ HOSTNAME_DNS02 }}
+            role: salt_minion
+            params:
+              vcpu: !os_env SLAVE_NODE_CPU, 1
+              memory: !os_env SLAVE_NODE_MEMORY, 2048
+              boot:
+                - hd
+              cloud_init_volume_name: iso
+              cloud_init_iface_up: ens3
+              volumes:
+                - name: system
+                  capacity: !os_env NODE_VOLUME_SIZE, 150
+                  backing_store: mcp_ubuntu_1604_image
+                  format: qcow2
+                - name: iso  # Volume with name 'iso' will be used
+                             # for store image with cloud-init metadata.
+                  capacity: 1
+                  format: raw
+                  device: cdrom
+                  bus: ide
+                  cloudinit_meta_data: *cloudinit_meta_data
+                  cloudinit_user_data: *cloudinit_user_data_1604
+
+              interfaces: *all_interfaces
+              network_config: *all_network_config
+
+          - name: {{ HOSTNAME_MDB01 }}
+            role: salt_minion
+            params:
+              vcpu: !os_env SLAVE_NODE_CPU, 2
+              memory: !os_env SLAVE_NODE_MEMORY, 2018
+              boot:
+                - hd
+              cloud_init_volume_name: iso
+              cloud_init_iface_up: ens3
+              volumes:
+                - name: system
+                  capacity: !os_env NODE_VOLUME_SIZE, 150
+                  backing_store: mcp_ubuntu_1604_image
+                  format: qcow2
+                - name: iso  # Volume with name 'iso' will be used
+                             # for store image with cloud-init metadata.
+                  capacity: 1
+                  format: raw
+                  device: cdrom
+                  bus: ide
+                  cloudinit_meta_data: *cloudinit_meta_data
+                  cloudinit_user_data: *cloudinit_user_data_1604
+
+              interfaces: *interfaces
+              network_config: *network_config
+
+          - name: {{ HOSTNAME_MDB02 }}
+            role: salt_minion
+            params:
+              vcpu: !os_env SLAVE_NODE_CPU, 2
+              memory: !os_env SLAVE_NODE_MEMORY, 2048
+              boot:
+                - hd
+              cloud_init_volume_name: iso
+              cloud_init_iface_up: ens3
+              volumes:
+                - name: system
+                  capacity: !os_env NODE_VOLUME_SIZE, 150
+                  backing_store: mcp_ubuntu_1604_image
+                  format: qcow2
+                - name: iso  # Volume with name 'iso' will be used
+                             # for store image with cloud-init metadata.
+                  capacity: 1
+                  format: raw
+                  device: cdrom
+                  bus: ide
+                  cloudinit_meta_data: *cloudinit_meta_data
+                  cloudinit_user_data: *cloudinit_user_data_1604
+
+              interfaces: *interfaces
+              network_config: *network_config
+
+          - name: {{ HOSTNAME_MDB03 }}
+            role: salt_minion
+            params:
+              vcpu: !os_env SLAVE_NODE_CPU, 2
+              memory: !os_env SLAVE_NODE_MEMORY, 2048
+              boot:
+                - hd
+              cloud_init_volume_name: iso
+              cloud_init_iface_up: ens3
+              volumes:
+                - name: system
+                  capacity: !os_env NODE_VOLUME_SIZE, 150
+                  backing_store: mcp_ubuntu_1604_image
+                  format: qcow2
+                - name: iso  # Volume with name 'iso' will be used
+                             # for store image with cloud-init metadata.
+                  capacity: 1
+                  format: raw
+                  device: cdrom
+                  bus: ide
+                  cloudinit_meta_data: *cloudinit_meta_data
+                  cloudinit_user_data: *cloudinit_user_data_1604
+
+              interfaces: *interfaces
+              network_config: *network_config