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Re: [Discuss-gnuradio] Understanding flow control

From: Matt Ettus
Subject: Re: [Discuss-gnuradio] Understanding flow control
Date: Fri, 15 Jan 2010 15:04:15 -0800
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20091209 Fedora/3.0-4.fc12 Thunderbird/3.0

Incidentally my System Engineer/Project Lead points out that if the
USRP2 is actually telling the host to stop sending (which certainly
appears to be the case) then we are only able to get overall
throughput with two USRP2s over two gig-e connections comparable to
what we were getting with a single USRP over a single USB 2.0 line.
Something of a disappointment to us.

That is not correct. If you have 2 USRP2s both connected by gig-e, then you need 2 separate gig-e cards. You should be able to get the full throughput to each one, but your computer may have a hard time keeping up.


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