python script DNS traffic in multi-domain reservable SD-WAN sandbox

Jurrian — Thu, 06 Jan 2022 11:46:17 GMT

Hi all,

I am studying SD-WAN as part of CCIE Enterprise Infrastructure and have a question about the traffic generation python script in the multi-domain reservable SD-WAN sandbox.

Under network traffic generation in the instructions the text explains that a python script running on server1 at each site (site 1, 2 and 3) generates DNS requests for netflix.com, facebook.com, twitter.com, amazon.com and outlook.com. My SD-WAN sandbox has been running for +- 4 hours and I do not see any DNS traffic (see screenschot below). I have checked nbar protocol-discovery on the LAN interface of the cEdges at site 1 and 2 and it also does not show any DNS traffic, only DHCP, SSH and unknown traffic.

Am I missing something? Do I need to activate the script? I have tried to login to the server1 devices but the connection is refused.

Kind regards,

Jurrian

Re: python script DNS traffic in multi-domain reservable SD-WAN sandbo

bigevilbeard — Thu, 06 Jan 2022 17:39:44 GMT

Hello @Jurrian on the SD-WAN reservation sandbox page instructions, you can find a guide (Lab User Guide) to help you and to set this up. Hope this helps!

https://devnetsandbox.cisco.com/RM/Diagram/Index/c9679e49-6751-4f43-9bb4-9d7ee162b069?diagramType=Topology

topic Re: python script DNS traffic in multi-domain reservable SD-WAN sandbo in DevNet Sandbox

python script DNS traffic in multi-domain reservable SD-WAN sandbox

Re: python script DNS traffic in multi-domain reservable SD-WAN sandbo