Thanks Otto and Sebastian. "Otto Moerbeek" <[EMAIL PROTECTED]> wrote: > OpenBSD uses a pretty low default send and receive buffer size for > sockets. Try increasing net.inet.tcp.recvspace and > net.inet.tcp.sendspace, after reading a bit about bandwidth * delay > products.
Sebastian Reitenbach wrote: > yes, you can, I found this very helpful: > http://www.speedguide.net/faq_in_q.php?category=89&qid=185 BDP (bytes) = total_available_bandwidth (KBytes/sec) x round_trip_time (ms) That answered a nagging question and leads me now to iperf and ifstat. These seem to operate by polling remote hosts. ipfm seems to measure usage not delay or capacity. What are recommended *passive* ways to track available bandwidth and the round trip? Regards -Lars
