Haoyu Bai 0412423f06 Setup idletimer for network interface.
Cherry-picked from commit f71ca8a5728e425de61ba794c9653dd0b04f16e3 in
master. DO NOT MERGE

Change-Id: I6101c7ae041b4cc1237ce7a9983753dbdfa301d3
2012-08-10 15:58:34 -07:00
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