How to Test SDN, or Software‑Defined Networks?
summary
A Polish SDN controller is tested with a reproducible end-to-end pipeline: Packer + cloud-init + Ansible build VM switch images running Open vSwitch, Terraform + libvirt create multi-interface topologies, Scapy and tcpreplay craft packets, and Cisco t-rex generates 5 Mbps traffic. Python orchestrates t-rex and OpenFlow rules via APIs, and tests validate single-packet and streaming forwarding across three virtual switches while CI uses snapshots to speed repeated long tests.
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chapters (7)
- 0:00SDN introduction
- 7:07SDN testing challenges
- 8:31Building device simulator
- 17:05Test environment setup
- 23:51Testing with Scapy
- 33:34Traffic generation
- 41:45Summary and Q&A
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