Re: [B.A.T.M.A.N.] Filtering BATMAN-ADV packet

Sven Eckelmann
2011-07-28T12:06:01Z

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On Thu, Jul 21, 2011 at 12:20:00PM +0200, Andrew Lunn wrote:
[...]
> You might want to consider using a network simulator/emulator. Use a
> number of user mode linux nodes, or qemu nodes, connected together
> using a virtual network. You can control the packets losses, paths
> etc, much easier and dynamically.
>
> Take a look at this page for an example:
>
> http://www.open-mesh.org/wiki/open-mesh/Emulation

Yes, this is an extreme good reminder. It cannot be used for performance
analysis, but is quite good to test routing in extreme weird situation.

Only a small hint: Try to use qemu-kvm instead of qemu and enable KSM [1] when
not enough memory is available to hold all virtual machines in memory.

Kind regards,
Sven

[1] http://www.linux-kvm.com/content/using-ksm-kernel-samepage-merging-kvm

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