Minor update in bess-upf guide

Change-Id: I04d7c82c97786a34284c4b55f60cc046f571f51d
diff --git a/edge_deployment/bess_upf_deployment.rst b/edge_deployment/bess_upf_deployment.rst
index 317f8fc..89cb1eb 100644
--- a/edge_deployment/bess_upf_deployment.rst
+++ b/edge_deployment/bess_upf_deployment.rst
@@ -17,21 +17,21 @@
 
 .. image:: images/bess-upf-example-network.png
 
-+-----------+-----------+------------------------------------+------------+---------------+
-| Network   | VLAN      | Subnet                             | Interface  | IP address    |
-+-----------+-----------+------------------------------------+------------+---------------+
-| enb       | 2         | 192.168.2.0/24 (gw: 192.168.2.254) | mgmt vlan2 | 192.168.2.254 |
-|           |           |                                    +------------+---------------+
-|           |           |                                    | enb        | 192.168.2.10  |
-+-----------+-----------+------------------------------------+------------+---------------+
-| access    | 3         | 192.168.3.0/24 (gw: 192.168.3.254) | mgmt vlan3 | 192.168.3.254 |
-|           |           |                                    +------------+---------------+
-|           |           |                                    | upf access | 192.168.3.1   |
-+-----------+-----------+------------------------------------+------------+---------------+
-| core      | 4         | 192.168.4.0/24 (gw: 192.168.4.254) | mgmt vlan4 | 192.168.4.254 |
-|           |           |                                    +------------+---------------+
-|           |           |                                    | upf core   | 192.168.4.1   |
-+-----------+-----------+------------------------------------+------------+---------------+
++-----------+-----------+------------------------------------+-------------------+---------------+
+| Network   | VLAN      | Subnet                             | Interface         | IP address    |
++-----------+-----------+------------------------------------+-------------------+---------------+
+| enb       | 2         | 192.168.2.0/24 (gw: 192.168.2.254) | mgmt server vlan2 | 192.168.2.254 |
+|           |           |                                    +-------------------+---------------+
+|           |           |                                    | enb               | 192.168.2.10  |
++-----------+-----------+------------------------------------+-------------------+---------------+
+| access    | 3         | 192.168.3.0/24 (gw: 192.168.3.254) | mgmt server vlan3 | 192.168.3.254 |
+|           |           |                                    +-------------------+---------------+
+|           |           |                                    | upf access        | 192.168.3.1   |
++-----------+-----------+------------------------------------+-------------------+---------------+
+| core      | 4         | 192.168.4.0/24 (gw: 192.168.4.254) | mgmt server vlan4 | 192.168.4.254 |
+|           |           |                                    +-------------------+---------------+
+|           |           |                                    | upf core          | 192.168.4.1   |
++-----------+-----------+------------------------------------+-------------------+---------------+
 
 .. note::