Date: Wed, 5 Nov 2003 10:59:50 -0800 From: Yuchung Cheng <ycheng@cs.ucsd.edu> To: ipfw@freebsd.org Cc: ycheng@cs.ucsd.edu Subject: maximum pipes in dummynet? Message-ID: <20031105105949.A15915@cs.ucsd.edu>
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Hi all, I am using dummynet to simulate many different links. After dummynet seems to slow down after more than 4000 (static) pipes. That is, the link delay is more than the specified delay. My config file looks like ipfw add 1 pipe 7 tcp from 192.168.2.100 10003 to 192.168.1.100 out ipfw pipe 7 config bw 730KByte/s queue 40 delay 4ms plr 0.01 ipfw add 1 pipe 8 tcp from 192.168.1.100 to 192.168.2.100 10003 in ipfw pipe 8 config bw 730KByte/s queue 40 delay 4ms plr 0.01 ipfw add 1 pipe 9 tcp from 192.168.2.100 10004 to 192.168.1.100 out ipfw pipe 9 config bw 1400KByte/s queue 40 delay 28ms plr 0.00 ipfw add 1 pipe 10 tcp from 192.168.1.100 to 192.168.2.100 10004 in ipfw pipe 10 config bw 1503KByte/s queue 40 delay 28ms plr 0.00 My machine is 2.66 P4 w/ 1G mem. Does anybody know how to make dummynet support more pipes? Also is it possible to specify one pipe for more than one port? i.e., ipfw add 1 pipe 10 tcp from 192.168.1.100 to 192.168.2.100 10004,10537,3045 in Thanks. Yu-chung
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