This page summarizes how to carry out experiments on the DIINER testbed.
After obtaining an account you will have access to three machines:
The backend is where DNS server software will run. You will have sudo access so you can install custom software and change OS parameters.
There are two helper scripts available on the backend.
brr-route switches the route that response packets will take.
/usr/local/bin/brr-route <d1|decoder|e1|encoder|replay|status> Switch between routing live traffic to the decoder and returning playback traffic back to the encoder. status: report current status d1|decoder: route response traffic to the decoder. e1|encoder: route response traffic to the encoder.
brr-resolver will switch between the two pre-installed resolvers.
/usr/local/bin/brr-resolver <status|knot|named> Switch between resolvers
From the encoder you will be able to control what traffic is sent to the backend. You can have a portion of real-time B-Root DNS traffic from one of our anycast nodes or use traffic generation tools to send packet captures or generated traffic.
Route response traffic to the decoder
Start the desired resolver software (your software or pre-installed software)
Start live traffic
Stop live traffic
Route response traffic to the encoder
Start the desired resolver software (your software or pre-installed software
When replaying or generating traffic, the traffic should be sent to one of the B-Root service addresses. These are:
If the sending software needs to generate more than 65 thousand simultaneous connections, the interface between e1-brr and b1-brr has additional local addresses that can be used to facilitate this. Addresses from the rance of 172.16.90.5 to 172.16.90.79 allow for over 4 millions unique source address/port combinations.
dnsperf -d /usr/share/dnsperf/queryfile-example-current -s 18.104.22.168 -t 30 -S 1
see the dnsperf man page for additional information.
TBD: provide details on how to replay a stored trace
Decoder funtionality has not been implemented. If you have a use case for the decoder, please reach out to us.