nakaji@jp.freebsd.org wrote:

> $ netstat -in

What does "netstat -in 1" show?

> I was running "tcpdump -n -i tlp0", "tcpdump -n -i tlp1" and "vmstat
> -i -w 5" while downloading.

Hmm, how about "tcpdump -env"?

> The maximum rate of "soft net" was 29.

What about int 1 and int 2 (for tlp0 and tlp1)?
Does ping(8) (and other TCP programs) via your cobalt
work at that time?

> And, tcpdump shows only SNMP, NTP, and SMB now.

Hmm, if any packets are handled in upper layer,
it shouldn't be a driver problem (nor cobalt specific)
but some issue around ipf or other settings, I guess.
---
Izumi Tsutsui