You can deploy the VMware SD-WAN HA on VMware ESXi using the supported topologies.
While deploying HA on VMware ESXi, consider the following limitations:
ESXi vSwitch Caveats
- The upstream failures are not propagated by the vSwitch that is directly connected to a virtual SD-WAN VNF. For example, if a physical adapter goes down, the VMware Edges will see the link up and they would not failover.
- vSwitches do not allow to the ability to configure specific VLANs on a port group. If more than one VLAN are required, then VLAN 4095 must be configured. This allows all VLANs on the port group.
Limitations of VMware SD-WAN High Availability
- There is no generic way of failure detection that will work on all the hardware, virtual, and uCPE platforms.
You can enable the Loss of Signal (LoS) detection to determine the HA Failover. For more information, see HA LoS Detection on Routed Interfaces.
VMware SD-WAN supports the following topologies while deploying HA on VMware ESXi:Topology 1: Legacy HA with WAN links
The following image illustrates a topology with legacy HA along with WAN links that have been uplinked using a single physical adapter and one routed LAN or trunked LAN through single physical adapter.Topology 2: Enhanced HA with WAN Links
The following topology shows enhanced HA with three WAN links.
Topology 3: Enhanced HA with Subinterfaces
The following image shows Enhanced HA with subinterfaces on the WAN interfaces with VLAN ID as 4095 on port group.