I have about 10 years of networking experience. I am replacing my Vedge 5000s with CEDGE 8500s. The Vedge has been solid in general. I had a few intermittent data plane issues that Cisco said were caused by elephant flows. I pushed about 2 Gbps of traffic between 5000s on a busy weekend. The Cedge has been very buggy. For example, I was trying to get Netflow to send to a collector and add the following to one of my overlay interfaces. IOS-XE SDWAN took the command and did not complain. I started getting flow. I had to remove the below from one of the interfaces; about 30 seconds after the commit, my 8500 crashed and rebooted. I also had an 8500L go into a reboot loop and revert to an older config once the IP flow was put on an interface. After working with a few different TAC engineers and getting a good one, I found out that this is not supported yet. The router took the config with no complaints.
DO NOT USE ON CEDGE 8500s:
ip flow monitor sdwan-flow-monitor output
ip flow monitor sdwan-flow-monitor input Use:
policy flow-visibility
policy app-visibility The above will update the sdwan section of the config.