My recent trip to Darwin exposed me to my first ever SD-WAN router. The Viptela vEdge 100, a small branch office router. Although this wasn’t a full SD-WAN deployment yet, I was able to upgrade the software and deploy some initial config so the experts could jump on and get it going.
Because SD-WAN is actually using Internet links, once your public IP is assigned and your device ‘calls home’ it is accessible.
The device is running in a type of hybrid mode so to speak, with a connection to vManage and vSmart devices, and some static IPSec tunnels to some firewalls for non SD-WAN connectivity.
Was a very good learning experience, with the first being the USB cable, which isn’t your standard Serial to USB. It was a specific USB cable which require a specific driver. Also, the power supply and connectors don’t seem to be ones you can pick up at a local Jaycar.
The commands, a little different and the terminology as well. I am currently working through some documents to work out what a TLOC is and a Color. The VPN, seems to be a VRF so that’s not too difficult.
Then there was the routing table and the mysterious OMP protocol. It has a AD of 250, so don’t forget that for the new CCNP! Briefly looking at it, its route selection is similar to BGP.
These little routers run pretty hot as well. They have no internal fan it seems.
After playing with the command line a little and assisting with troubleshooting, the basics of routing and IPSec are still in play here, it is more the way the router becomes part of the SD-WAN fabric that I need to understand.
I also was looking at what I thought was the BGP table, but was wrong so don’t forget show bgp routes for that.
Finally, I just found out that it relies on BFD and can’t be turned off, so this allows extremely fast failovers within the Fabric.
I will have more once I get a lab up and running. Site is now live and can’t be messing around with a production network!