SD-WAN VeloCloud Traffic Flow

SD-WAN VeloCloud Traffic Flow

Posted on Jan 08, 2020 (0)

SD-WAN VeloCloud Traffic Flow

Before we talk about how talk to SD-WAN network Branch and how migration is done, let’s understand  what ports and Protocols are being used for communication on SD-WAN NSX VeloCloud environment.

Ports & Protocols for Communication:

  • Branch to VCO ( Orchestrator ) : for Management , TCP/443
  • Branch to Hub : data Traffic UDP/2426 ( tunnel to hub is created )
  • Branch to Hosted VCG or On-Prim VCC : Control and data UDP/2426
  • Hosted VCG or On-Prim to Orchestrator : TCP 443 for Management

SD-WAN Reference Topology:

Below topology will explain how NSX SD-WAN are connected by different method, how SD-WAN CPE is connected to MPLS and Internet via VRRP, How SD-WAN with L3 switch is connected, How Hybrid SD-WAN site is connected and How Non SD-WAN site is connected with SD-WAN CPE Internet connection.

Below is the figure that explains that:

HUB VCE Placement:

There are two options to which HUB can create Tunnel:

  • Option1: Route the private tunnel traffic through the firewall
  • Option2: Route the private tunnel traffic directly to the L3 core

Migration Work Flow

Following are the Migration flow of any WAN sites which has to be migrated from Typical WAN to SD-WAN using VeloCloud technology.


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