Date: Wed, 04 Aug 1999 10:38:14 -0400 From: Bill Cerveny <cerveny@advanced.org> To: atm@FreeBSD.ORG Subject: Performance tuning tips, comments on configuration Message-ID: <4.2.0.58.19990804100630.00a5e5a0@mail.advanced.org>
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First, does anyone have any performance tuning tips for getting optimal performance from the Fore ATM cards on FreeBSD? Second, I am something of a "newbie" to FreeBSD, although I've got a bit of experience with other UNIX variants, including BSDI, Linux, Solaris, etc. I'm also a little new to ATM. It took me awhile to figure out how to make the Fore cards work on FreeBSD. If I were to improve the documentation and/or installation instructions for the HARP stuff, I would add the following: 1) Provide better references about how to configure ATM cards using configuration values in /etc/rc.conf. After playing around with the "atm" command for some time, I discovered that rc.atm would do most of the work if /etc/rc.conf was populated correctly. Examples of configuration values can be found in /etc/defaults/rc.conf, but better documentation of the configuration values would be great. 2) Indicate that changes must be made to the default FreeBSD kernel and what changes need to be made. It wasn't intuitive to me to look in the "LINT" kernel config file for the values to make ATM work. 3) Examples of a few working configurations between FreeBSD systems and other systems would be useful. I finally found some examples in the mailing list and after contacting someone familiar with the HARP stuff, but it would be useful to provide examples of back-to-back connections between two FreeBSD boxes (which is what I had set-up) to get the implementor started. 4) Really emphasize that the correct Fore boot binary file can make or break your implementation and that with the wrong boot binary, things may appear to function somewhat. I had used a pca200e.bin file from a commercial Fore driver for BSDI UNIX; it sort of worked, but acted strange at times and I never got connectivity. Someone else recommended a different version of the pca200e.bin file and the cards suddenly started working right. If interested, I could attempt to write some documentation regarding the above for inclusion in future releases ... Bill Cerveny Advanced Network & Services To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-atm" in the body of the message
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