IMDEA Networks Institute Publications Repository

Heterogeneous Packet Processing in Shared Memory Buffers

Eugster, Patrick and Kogan, Kirill and Nikolenko, Sergey and Sirotkin, Alexander V. (2016) Heterogeneous Packet Processing in Shared Memory Buffers. [Journal Articles]

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Packet processing increasingly involves heterogeneous requirements. We consider the well-known model of a shared memory switch with bounded-size buffer and generalize it in two directions. First, we consider unit-sized packets labeled with an output port and a processing requirement (i.e., packets with heterogeneous processing), maximizing the number of transmitted packets. We analyze the performance of buffer management policies under various characteristics via competitive analysis that provides uniform guarantees across traffic patterns [10]. We propose the Longest-Work-Drop policy and show that it is at most 2-competitive and at least p2-competitive. Second, we consider another generalization, posed as an open problem in [19], where each unit-sized packet is labeled with an output port and intrinsic value, and the goal is to maximize the total value of transmitted packets. We show first results in this direction and define a scheduling policy that, as we conjecture, may achieve constant competitive ratio. We also present a comprehensive simulation study that validates our results.

Item Type: Journal Articles
Uncontrolled Keywords: Admission control, shared memory switch; competitive analysis.
Depositing User: Kirill Kogan
Date Deposited: 16 Sep 2016 11:37
Last Modified: 26 Jan 2017 13:02

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