ref: c38126b094c51222a26e1725ba6421527d3c18bd
parent: 0bb23924f0daef2b848d60e0250e4ce45777d90e
parent: 44b048edd6e5f81d8eb14d8a4130984e6f2004b8
author: dongzha <dongzha@cisco.com>
date: Thu Jun 12 05:15:29 EDT 2014
Merge pull request #958 from ruil2/trace_update
move trace related info to interface header