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The segment routing use case is built on an older internal release of ONOS (v0.3.0Sept 2014). The following instructions do not apply to ONOS 1.0.0 (Avocet), and are meant only for the SPRING-OPEN project.


There is no IP network in the world that can run without configuration. In SPRING-OPEN, instead of configuring each switch individually (with IP addresses, subnets, labels etc.) we configure the controller. Such configuration should be possible via the controller CLI. However we have limited configuration capabilities currently in the controller CLI (just tunnels and policies). Thus all startup-configuration happens via a configuration file loaded at controller startup. Please note that without this config file (or with the wrong config file) the network will not work correctly.