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Top Forums Shell Programming and Scripting How to demonstrate network problems? Post 302493967 by Evan on Friday 4th of February 2011 10:48:10 AM
Old 02-04-2011
Hi jim thanks for your reply.

Regarding the snoop I'll brush up a previous script: an infinite loop that created a snoop file at once with 5000 packets:
Code:
snoop -q -o ./trace.cap -d eth0 -c 5000

Then the file is kept or deleted based on other stats so no disk space problems.
The script didn't affected much the system from CPU and memory point of view.
I'll size the number of packets.

Your last statement is not very clear to me.
You mean that in some cases the network could be slower than the application traffic and then some packets are lost?
So you suppose that the application has a limited buffer (undersized) and during traffic peak it could loose packets and take to the mentioned errors.
Is this right?

In the meanwhile I'm studying kstat and dtrace as described here:
H.K. Jerry Chu's Weblog

Do you think I can get interesting infos with these tools?

Thanks,
Evan
 

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install-solaris(1M)                                                                                                            install-solaris(1M)

NAME
install-solaris - install the Solaris operating system SYNOPSIS
install-solaris install-solaris invokes the Solaris Install program. Depending on graphical capability and available memory at the time of invocation, install-solaris invokes either a text-based installer or a graphical installer. The following minimum requirements for physical memory dictate which features are available during installation: For SPARC machines: 128 MB Minimum physical memory for all installation types 128 MB Minimum physical memory required for windowing system 384 MB Minimum physical memory required for graphical-based installation For x86 machines: 256 MB Minimum physical memory for all installation types 256 MB Minimum physical memory required for windowing system 512 MB Minimum physical memory required for graphical-based installation In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number of fea- tures available. install-solaris exists only on the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the for more details. install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the installation media. Refer to the for disk space requirements. Refer to the for more information on the various menus and selections. See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcdrom (Solaris instal- | | |lation media) | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ pkginfo(1), install(1M), pkgadd(1M), attributes(5) It is advisable to exit install-solaris by means of the exit options in the install-solaris menus. 23 Sep 2005 install-solaris(1M)
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