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Date:      Tue, 4 Aug 1998 20:29:57 -0400
From:      "Dave Bickle" <dbickle@bac.ca>
To:        <freebsd-questions@FreeBSD.ORG>
Subject:   Question Concerning Socket Buffers
Message-ID:  <vines.M3dD%2BcQulpA@bacott200.bac.ca>

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I am having difficulty sending out Mbone media streams. Every receiving station is 
experiencing packet loss (>40%). We have determined that this could be a result of 
insufficient memory in the send and receive buffers. I have attempted to modify these 
settings with the "sysctl" command. The commands and parameters used are as follows: 

        sysctl -w kern.maxsockbuf=1048576 
        sysctl -w net.inet.tcp.sendspace=1048576 
        sysctl -w net.inet.tcp.recvspace=1048576 
        sysctl -w net.inet.udp.recvspace=1048576 

After making these modifications I experience errors when I try to launch the Session 
Directory or X Windows. The errors are as follows: 
 
    SDR Error 
    couldn't get SIP receive socket: no buffer space available 

    XWindows Error 
    _XSERVTransSocketOpen: socket() failed for tcp 
    _XSERVTransSocketCOTSServer: Unable to open socket for tcp 
    _XSERVTransMakeAllCOTSServerListeners: failed to open listener for tcp 

Any suggetstions? 

Thank You, 



David Bickle	
Programmer/Analyst
Bell Emergis Inc.
tel: (613) 785-0418
fax: (613) 234-7488
e-mail: dbickle@bac.ca
Internet: www.canet2.net

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