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What’s new in Linux 3.3

“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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