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Full Discussion: network problems with sco
Operating Systems SCO network problems with sco Post 302316100 by ajacques on Thursday 14th of May 2009 04:48:03 AM
Old 05-14-2009
Hi everyone,

I have the exact same problem with two of my servers running on SCO 5.0.5.

The first one is part of a tiny network (about 6 or 7 'clients') so I don't think the number of TCP connections is the reason. Thanks to your previous posts, we are about to install a packet sniffer on the network.

The problem is that I'm not really a network expert (and my native language is french) so I'm a bit lost in all the information the sniffer will give to me. What am I supposed to search for ? Gratuitous ARP Requests ? I've read that those requests are sent to check for double IP, is it true ?

Thanks in advance

edit : I'm trying to install tcpdump on my server. When I try to launch it, I have en error message : "no cards available to use in /dev/mdi". And when I try to give him the interface I want, it says "Can't open device - Device busy". Do I need to install a second card on the server ?

Last edited by ajacques; 05-14-2009 at 06:49 AM..
 

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CURLOPT_TCP_NODELAY(3)					     curl_easy_setopt options					    CURLOPT_TCP_NODELAY(3)

NAME
CURLOPT_TCP_NODELAY - set the TCP_NODELAY option SYNOPSIS
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TCP_NODELAY, long nodelay); DESCRIPTION
Pass a long specifying whether the TCP_NODELAY option is to be set or cleared (1 = set, 0 = clear). The option is set by default. This will have no effect after the connection has been established. Setting this option will disable TCP's Nagle algorithm. The purpose of this algorithm is to try to minimize the number of small packets on the network (where "small packets" means TCP segments less than the Maximum Segment Size (MSS) for the network). Maximizing the amount of data sent per TCP segment is good because it amortizes the overhead of the send. However, in some cases small seg- ments may need to be sent without delay. This is less efficient than sending larger amounts of data at a time, and can contribute to con- gestion on the network if overdone. DEFAULT
1 PROTOCOLS
All EXAMPLE
TODO AVAILABILITY
Always. The default was changed to 1 from 0 in 7.50.2. RETURN VALUE
Returns CURLE_OK SEE ALSO
CURLOPT_SOCKOPTFUNCTION(3), CURLOPT_TCP_KEEPALIVE(3), libcurl 7.54.0 June 30, 2016 CURLOPT_TCP_NODELAY(3)
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