We propose a dual TCAM architecture -DUOS, for routing tables. Four memory management schemes for TCAMs also are proposed and evaluated. DUOS and our memory management schemes support control-plane incremental updates without delaying data-plane lookups. Compared to other TCAM architectures such as CAO OPT [19] that support incremental updates without delaying lookups, DUOS offers reduction in power consumption and improvement in average performance for update operations.

Abstract

No abstract

No abstract

We investigate various TCAM architectures recently proposed for TCAM power and memory reduction and show that far better power and memory performance is possible when we use an optimal prefix set for the given router table than when the original prefix set or the reduced prefix set as proposed in other work is used. For EaseCam [8,9], our experiments show a power and TCAM memory reduction of 96% to 98% and 62% to 69% respectively. For the suffix node architecture of [3], we get a power and TCAM memory reduction of 16% to 25% and 45% to 78% respectively.