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Scheduling Computations on a Programmable Router

Report ID:
May 2000
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It is becoming increasingly common for routers to compute on packets
in addition to forwarding them, thereby exposing the problem of how
the router's CPU cycles are scheduled. To complicate matters, this
scheduling decision may be constrained by the desire to differentiate
the level of service given different packet flows. This paper
addresses the issue of scheduling computations on a programmable
router. Its main contributions are to define a process architecture
that allows computations to be scheduled in a meaningful way, and to
identify the key issues that make this architecture difficult to
implement in practice.

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