This document explains how to send all Mgmt/netconf traffic from VD to VOS using MPLS over INET



Step 1: Use Cases

  1. If you want to send all Mgmt traffic from VD to VOS using INET over MPLS.
  2. If you want to send the SPACK/firmware upgrade image to VOS Using INET over MPLS or vice-versa.


Step 2: Configurations


Change the wan-interfaces management-traffic priority.


By default, the wan-interfaces management-traffic is 0 for all the WAN Interfaces.

You can change the wan-interface's management-traffic to a higher value which you want to avoid.  So the other WAN interface will have a lower priority and will be preferred.


Example: 

vni-0/0.0 is having mpls-Transport-VR.

vni-0/1.0 is having Internet-Transport-VR.


If You want to prefer MPLS-Transport-VR(vni-0/0.0) for all the management-traffic between Versa Director and VOS.

You can increase the priority of Internet-Transport-VR(vni-0/1.0) to a higher value. 


CLI Output:


Verification:


Initiate a ping from VD to Mgmt. Address of VOS.

Check the session extensively in Controller. You can see the traffic is taking internet Transport.




Step3: Q&A


Question 1: How does it work? Does it affect outbound management traffic from CPE to Controller?  Or does it also affect traffic from Controller to CPE?

[Versa] It is for bidirectional traffic. Management priority configured on CPE takes precedence over the controller. 


Question 2: How do I verify it actually prefers MPLS (vni-0/0)?  Is there any CLI command or anything?

[Versa] You can run tcpdump on vni-0/0 by filtering the MPLS IP of controller/CPE. 

You can also check the session extensive as explained above.


Question 3: Do I need to set priority on the tenant-org as well?

[Versa] This it is NOT needed, since all management traffic is sourced from Provider-Org.