[peervpn] using compression?

[Tobias Volk]

This is actually a planned feature. These would be the requirements in my point of view:

* Compression should be negotiated per link, and it should be possible to compress one-way. For example, an ADSL-connected node may want to compress its upstream to save bandwidth, but prefer to receive an uncompressed downstream to reduce CPU load on both sides.

* PeerVPN fragments packets internally to avoid MTU issues. Compression should be applied before fragmentation, so it can reduce the amount of packets that need to be fragmented.

Unfortunately, this requires some protocol changes and code restructuring, so I have to postpone this for now. :-)

- Tobias


On Tue, 20 Oct 2015 13:48:22 +0900
Tomasz Chmielewski <mangoo at wpkg.org> wrote:

> In peervpn-0-043.tar.gz sources, these bring up no results:
> 
> $ grep -ri compress *
> $ grep -ri zlib *
> $ grep -ri lzo *
> 
> 
> Obviously it's not supported right now by PeerVPN.
> 
> Have you considered adding compression support to PeerVPN?
> 
> I did some measurements some years ago (with OpenVPN lzo compression) 
> and it can give substantial savings:
> 
> http://blog.wpkg.org/2008/08/27/drdb-and-link-compression/
> 
> 
> Tomasz Chmielewski
> 
> 
> 
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