Described herein are devices and techniques for deterministic service chaining between virtual network functions (VNFs). A control device can comprise a wide area network (WAN) interface, at least one local interface, and processing circuitry. The WAN interface can communicate with a plurality of WAN links. The at least one local interface can communicate with VNFs. The processing circuitry configured to: receive performance indicators, identify one of the plurality of devices having a value for a performance indicator that exceeds a threshold for a corresponding key performance indicator, and provide notification of a violation based on the identifying. The performance indicators can include latency and resource usage from the WAN interface and the at least one local interface. Also described are other embodiments.