WAN Acceleration Techniques used in WANProxy?
Juli Mallett
juli at clockworksquid.com
Tue Sep 15 17:57:28 PDT 2009
Hi Kevin,
Right now just dictionary compression. Because connections are
proxied through the TCP stack on both sides of a proxy, it is possible
that any TCP improvements in e.g. Linux or FreeBSD network stack would
be applied to the connection. The goal is to keep WANProxy
multi-platform and to not develop a large feature set that is
restricted to one or two platforms, so any really specialized TCP
modifications seem unlikely, but any semi-portable improvements (like
disabling and reenabling Nagle when there is more data pending) could
be implemented. QoS and protocol-specific optimizations are possible,
but I don't have the time to work on them and don't know anyone else
who is looking at doing them with WANProxy. Traffic Squeezer does
some things with HTTP, but I can't imagine that it does anything
particularly in the spirit of WAN Optimization (i.e. not caching)
which would also be a marked improvement over dictionary compression.
Thanks,
Juli.
On Tue, Sep 15, 2009 at 17:40, Jiachang Xu <xcoderz at gmail.com> wrote:
> Hi, does anyone know what kind of WAN Acceleration Techniques is used in
> WANProxy? I know that it uses dictionary compression to sent less data, but
> I am interested to know what other techniques is used, such as flow control
> by manipulating TCP headers to increase TCP size. This is for a project I am
> doing for school, I am looking to examine a few WAN Acceleration products,
> the techniques used, its performance, stability, etc.
>
> --
> Kevin Xu
>
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>
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