Citrix SD-WAN

Build an SD-WAN network

March 12, 2021

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To build an SD-WAN overlay network without the need to build SD-WAN overlay route tables:

Create a WAN Path tunnel across each WAN link between two SD-WAN appliances.
Configure Virtual IP to represent the endpoint for each WAN link. You can establish encrypted WAN paths through the current L3 Network.
Aggregate 2, 3, and 4 WAN paths (physical links) into a single Virtual Path allowing packets to traverse the WAN utilizing the SD-WAN overlay network instead of the existing underlay which is least intelligent and cost inefficient.

SD-WAN routing components and network topology

Local – subnet resides at this site (advertised to SD-WAN environment)
Virtual Path – sent through Virtualized Path to the selected site appliance
Intranet – sites with no SD-WAN appliance
Internet – internet bound traffic
Pass-through – untouched traffic, in one bridge interface out the other
Default route (0.0.0.0/0) defined - Used for pass-through traffic not captured by the SD-WAN overlay route table, or utilized at the MCN to instruct clients sites to forward all traffic back to MCN node for back-haul of internet traffic.

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Build an SD-WAN network

March 12, 2021

Contributed by:

March 12, 2021

Contributed by:

Build an SD-WAN network

SD-WAN routing components and network topology

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