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Best Networking Tweaks for Linux

Nov 29, 2010, 23:33 (0 Talkback[s])
(Other stories by Michael Adams)

"A Linux system can be tweaked to a degree Windows users may envy (or fear) especially for networking. Tweaking a Linux box for networking is a bit more mundane than other platforms: there are specific driver settings one can work with but its best flexibility comes from a mix of OS-level modifications and adherence to different RFCs.

"ifconfig (interface) txqueuelen #

"Speedy LinuxSoftware buffers for network adapters on Linux start off at a conservative 1000 packets. Network researchers and scientists have mucked around with this, and figured out that we should be using 10,000 for anything decent on a LAN; more if you're running GB or 10GE stuff. Slow interfaces, such as modems and WAN links, can default to 0-100, but don't be afraid to bump it up towards 1000 and see if your performance improves. Bumping up this setting does use memory, so be careful if you're using an embedded router or something (I've used 10,000 on 16MB RAM OpenWRT units, no prob)."

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