BroadcomのNICのドライバ
下記を設定しないと、HVの通信は問題無いがVMでの通信が遅すぎる
/etc/modprobe.conf options bnx2x disable_tpa=1
https://bugzilla.redhat.com/show_bug.cgi?id=518531
http://h20566.www2.hp.com/portal/site/hpsc/template.PAGE/public/psi/mostViewedDisplay/?javax.portlet.begCacheTok=com.vignette.cachetoken&javax.portlet.endCacheTok=com.vignette.cachetoken&javax.portlet.prp_efb5c0793523e51970c8fa22b053ce01=wsrp-navigationalState%3DdocId%253Demr_na-c02020805%257CdocLocale%253Dja_JP&javax.portlet.tpst=efb5c0793523e51970c8fa22b053ce01&sp4ts.oid=3716246&ac.admitted=1373525940273.876444892.199480143