>>>>> In <061217154557.M0127346@mirage.ceres.dti.ne.jp> 
>>>>>	Izumi Tsutsui <tsutsui@ceres.dti.ne.jp> wrote:
> nakaji@jp.freebsd.org wrote:

> > And, "ifconfig tlp0 down; sleep 10; ifconfig tlp0 up" does not help.

> Why don't you try to get any statistics/logs (vmstat -i, netstat -i,
> ipfstat, ipnat -s, ps, top, dmesg, tcpdump, /var/log/messages etc.) there?

Thanks. I did not know much about these check tools, especially
{vm,net}stat -i and ipnat -s. I'll try them.

Hmm. dmesg and /var/log/messages don't have usuful messages about tlp or
some network troubles.
-- 
NAKAJI Hiroyuki