Service Function Chaining in Wildfire Scenarios

Mission Critical Services (MCS) are associated with public safety networks and their support has been progressively introduced in LTE/5G standards. MCS are composed by distinct functions that are required for voice and critical data communications, along with strict security requirements. Service Function Chaining (SFC) allows the delivery of end-to-end services and considers the order of flows (i.e. functions that must be applied before others) and the components on which such functions can be performed (i.e. at cloud or edge nodes). This paper proposes the design of SFC policies to chain Service Functions of MCS, considering the roles of vehicles in wildfire combating scenarios. The evaluated SFC policies consider security functions at edge nodes with distinct computational platforms. The achieved results demonstrate that the SFC policies need to be carefully designed to reduce disruption of services in MCS scenarios.