Cool.
How can I get this information at that time?

On Sat, Sep 15, 2012 at 11:21 PM, Josh Blum <j...@ettus.com> wrote:

>
>
> On 09/15/2012 11:45 PM, usrp n210 wrote:
> > Is there any advantage to use TUN/TAP interface ?
>
> Tun/tap is a convenient way to get access to the network stack from
> userspace. Unfortunately the benchmark* apps abuse tun/tap as a mac
> layer, which is precisely the wrong thing to do.
>
> For example:
>
> https://en.wikipedia.org/wiki/Transmission_Control_Protocol#TCP_over_wireless_networks
>
> (if you wait a few days, there will be some sweet work released with MAC
> layer + message passing in GRC. Stay tuned...)
>
> -josh
>
> > As 802.11bbn also uses TUN/TAP interface.
> > But I think in the tun/tap performance degrades as we send the packet
> back
> > to user process?
> > Therefore I compare results with benchmark_xx.py in /ofdm  with tunnel.py
> > in /ofdm.
> > In results benchmark_xx.py do not give consistent throughput (i.e. it
> > varies on channel) but tunnel.py gives 100% throughput irrespective of
> > channel
> > Will there be any valid reason for this ?
> > If I want to implement 2-way communication in USRP should I use TUN/TAP
> > interface?
> >
>
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>



-- 

Alex,
*Dreams can come true – just believe.*
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