YANG Model for Space Links Contact Plans

Contact plans describe when and how spacecrafts will be able to contact each other. Using the NETCONF network management protocol, the modelling of these contact plans is implemented as a YANG model. As an example of its use, It provides hints to the routing engine to preemptively withdraw routes before a contact is terminated, preventing temporarily forwarding failures and enabling faster routing convergence. The model is general and can be used for other means such as temporarily shutting down routers, switches or interfaces during low trafic periods in order to save electricity. Viagenie co-authored the specification, now adopted as an IETF tvr working group document.

https://datatracker.ietf.org/doc/draft-ietf-tvr-schedule-yang/