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List:       usrp-users
Subject:    Re: [USRP-users] USRP N210 Data Packets
From:       =?windows-1252?Q?Marcus_M=FCller?= via USRP-users <usrp-users () lists ! ettus ! com>
Date:       2015-02-26 19:36:32
Message-ID: 54EF75C0.4000405 () ettus ! com
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Hi Patrick,

in case my mail from earlier today got lost:

by default, UHD tries to put as many samples into a
network packet as possible, maximizing throughput/minimizing network
overhead and CPU load. You can change that behaviour, see [1], by
specifying a maximum payload in bytes. 16bit complex samples are 4B/sample.
"As many as possible" is dependent on the network's frame size, and thus
is by default set to a value that allows 1472B packets.
If your network can safely handle larger packets (ie. your NIC supports
jumbo frames, and all the switches (if any) between the NIC and the N210
do,too),
then you can also increase the frame size.

If anything remains unclear, don't hesitate to ask!

Greetings,
Marcus

[1] http://files.ettus.com/manual/page_transport.html#transport_udp
On 02/26/2015 02:43 PM, Patrick DaSilva via USRP-users wrote:
> Hi,
> 
> Can someone direct me to where I can find information on how many I/Q samples are \
> put into a packet on an N210 prior to being sent to a client such as GNU Radio? 
> Thank You,
> Patrick
> 
> _______________________________________________
> USRP-users mailing list
> USRP-users@lists.ettus.com
> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com


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