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What's new in Linux 3.3

Mar 19, 2012, 13:01 (1 Talkback[s])
(Other stories by Thorsten Leemhuis)

"The kernel developers have added an Ethernet teaming driver that combines multiple Ethernet devices into one virtual device (link aggregation/802.1AX). Similar to the existing bonding driver, this virtual network device can use a round-robin technique to share network load across multiple ports; alternatively, a designated "active backup" port can take over if there are problems with the primary network connection.

"Linux 3.3 includes the kernel components that are required for the Open vSwitch. This multi-layer virtual switch can operate on layers 2, 3 or 4 and was specially developed for virtualisation environments. "Dynamic Queue Limits" and "Byte Queue Limits" allow the kernel to control how much data can accumulate in a send queue. The aim of these is to reduce the "bufferbloat" problem that was mentioned in a previous Kernel Log and is caused by excessive data buffering in networking hardware. "

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