Time-driven priority (TDP) is a synchronous

packet scheduling In computing, scheduling is the action of assigning ''resources'' to perform ''tasks''. The ''resources'' may be processors, network links or expansion cards. The ''tasks'' may be threads, processes or data flows. The scheduling activity is car ...

technique that implements UTC-based

pipeline forwarding Pipeline forwarding (PF) applies to packet forwarding in computer networks the basic concept of '' pipelining'', which has been widely and successfully used in computing — specifically, in the architecture of all major central processing units ...

and can be combined with conventional IP routing to achieve the higher flexibility than another pipeline forwarding implementation known as

time-driven switching In Telecommunication and Computer networking, time-driven switching (TDS) is a node by node time variant implementation of Circuit switching, where the propagating datagram is shorter in space than the distance between source and destination. With T ...

(TDS) or

fractional lambda switching Fractional lambda switching (FλS) leverages on time-driven switching (TDS) to realize sub-lambda switching in highly scalable dynamic optical networking, which requires minimum (possibly optical) buffers. Fractional lambda switching implies swi ...

(FλS). Packets entering a switch from the same input port during the same

ime frame Ime is a village in Lindesnes municipality in Agder county, Norway. The village is located on the east side of the river Mandalselva, along the European route E39 highway. Ime is an eastern suburb of the town of Mandal A tehsil (, also know ...

(TF) can be sent out from different output ports, according to the rules that drive IP packet routing. Operation in accordance to pipeline forwarding principles ensures deterministic quality of service and low complexity packet scheduling. Specifically, packets scheduled for transmission during a TF are given maximum priority; if resources have been properly reserved, all scheduled packets will be at the output port and transmitted before their TF ends. Various aspects of the technology are covered b
several patents
issued by both the

United States Patent and Trademark Office The United States Patent and Trademark Office (USPTO) is an agency in the U.S. Department of Commerce that serves as the national patent office and trademark registration authority for the United States. The USPTO's headquarters are in Alex ...

and the

European Patent Office The European Patent Office (EPO) is one of the two organs of the European Patent Organisation (EPOrg), the other being the Administrative Council. The EPO acts as executive body for the organisation

References

{{DEFAULTSORT:Time-Driven Priority Computer networking