Okay, I need some help with changing my DCs over from Legacy Metro-Ethernet to Hybrid with SD-WAN.
I'm relativity new to SD-WAN, so I have a good idea what I am doing, but not enough for what I am trying to do.
I'm having a hard time wrapping my head around exactly what I need to do here. There is a ton of documentation out there about SD-WAN, but not a lot of working examples or working configuration examples to go off of. All I ever find are pictures with no background to them.
I have included 3 attachments:
My Current cEdge config (cleaned) that is an ASR1001X running SD-WAN
A L3 routing diagram of where things are currently connected
A diagram that I found on the internet that is almost exactly what I am trying to accomplish.
https://www.dropbox.com/sh/6t7thbzhbyuvsng/AAD7OTJrD1TQBzv0_l5GC8ANa?dl=0
Currently my cEdge has 3 ports built:
G0/0/0 - VPN0 is direct to the internet
G0/0/1 - VPN1420 that connects directly to my Metro-Ethernet and my legacy sites
G0/0/2 - VPN1420 that connects to the corporate LAN
Right now, I can have a vEdge on the color public-internet and it works great, but I want to bring in SD-WAN into the metro-ethernet, but I can never get away from having a few sites that will always be legacy. Or at least for a few years.
So, I need to add a G0/0/3 - VPN0 that connects back into the LAN and can listen for TLOC from the metro-ethernet.
But this is where I am lost.
The picture I have with the hybrid is close to what I am trying to do, but not exact. On that one, they have VPN0's reversed for what I am trying to do. I already have legacy on G0/0/1.
My thought process here is to add a /30 from G0/0/3 to my switching core network, advertise it in OSPF, so that it will be reachable from anywhere, even my metro-ethernet. Then when I add a SD-WAN site. give it an IP address on the legacy metro-ethernet, and then it should be able to make a connection to the other side because they would be able to find each other and have the same color?
Anyone out there help me out?
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