Date: Wed, 06 Nov 1996 17:45:11 -0500 From: Ken Lam <klam@awod.com> To: Dan Walters <hannibal@cyberstation.net>, hackers@freebsd.org Subject: Re: Limiting bandwidth on a socket? (SO_RCVBUF?) Message-ID: <3.0.32.19961106173443.0074b1a8@awod.com>
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At 10:51 PM 11/5/96 -0600, Dan Walters wrote: >I'm trying to come up with some way to limit the amount of bandwidth on a >socket, so I can have my mail and large files retrieve without slowing >down a telnet session that much. > >I thought I could do this by setting SO_RCVBUF to a small value, but it >doesn't seem to change the window size at all when I look at it with >tcpdump. You need to limit both SNDBUF and RCVBUF since your background xfers are also pushing outgoing :) Perchance that you might drop the buffers to less than the MTU, then you only wait for one background packet ahead of your outbound . Making the buffer even smaller would lessen the wait even further, but would degrade background performance, but decrease latency. Alas, you could always upgrade to ISDN :) -ken --- Ken Lam lam@awod.com Integrated Technical Systems Systems, Networks, and Internet Solutions -- Defining Technology Today "'Plug and Play' was only applicable to the original ATARI(tm)"
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