Title :
Power-efficient TCAMs for bursty access patterns
Author :
Wu, Weidong ; Shi, Jian ; Zuo, Ling ; Shi, Bingxin
Author_Institution :
Dept. of Electron. & Inf. Eng., Huazhong Univ. of Sci. & Technol., Hubei, China
Abstract :
Ternary content addressable memories (TCAM) have become a popular hardware device for fast routing-table lookups. However, the high power consumption in TCAM increases power supply and cooling costs, and limits the router design to fewer ports. Based on an analysis of the prefix hierarchy in routing tables, the authors propose an optimization model to reduce the power consumption for bursty access patterns. This model can reduce the average power consumption by a factor of 11.
Keywords :
content-addressable storage; optimisation; power consumption; table lookup; telecommunication network routing; telecommunication traffic; bursty access pattern; optimization model; power consumption; power supply; power-efficient TCAM; router design; table lookup; ternary content addressable memory; Algorithm design and analysis; Associative memory; Compaction; Cooling; Costs; Energy consumption; Frequency; Power supplies; Routing; Search engines; Access pattern; Routing; TCAM; power consumption;
Journal_Title :
Micro, IEEE
