IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
A reliable procedure in a new power management technique for a 200-Gbps packet forwarding LSI
Sadayuki YasudaShoko OhteruYasuyuki ItohKoji YamazakiYuusuke SekiharaTakashi AokiMasami UranoTsugumichi Shibata
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2013 Volume 10 Issue 11 Pages 20130231


A new power management scheme enables us to apply the power-gating technique to a 200-Gbps packet forwarding circuit. The circuit is equipped with two 100-Gbps forwarding engines (FEs), each of which processes inbound and outbound packets. When the amount of traffic decreases and only one forwarding engine is capable of processing all incoming packets, a packet-route switch installed in the data path routes all packets to one of the two FEs and the other FE is shut off. This technique reduces the power consumption by 14% when the total traffic rate is less than half of the maximum rate of 200Gbps.

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© 2013 by The Institute of Electronics, Information and Communication Engineers
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