Thinkpad T60p network trouble (update)
Problem with e1000: Open issue with latency
http://www.thinkwiki.org/wiki/Problem_with_e1000:_Open_issue_with_latency
Solution 1) BIOS Update
http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-63027
or
http://www-06.ibm.com/jp/domino05/pc/download/download.nsf/jtechinfo/MIGR-63027
Solution 2) set RxIntDelay
# modprobe -r e1000
# modprobe e1000 RxIntDelay=32