framework ✤ Fully written in Python. Easy to use and prototyping ✤ Originally a project of NTT Communications (Japan) ✤ Ryu supports various protocols for managing network devices • OpenFlow 1.0, 1.2, 1.3, 1.4, Netconf, OF-config, SNMP etc. ✤ OpenSource Licence: Apache 2.0 ✤ http://osrg.github.io/ryu/