+1... Thanks… Dave

From: [email protected] [mailto:[email protected]] On 
Behalf Of Luke, Chris
Sent: Friday, June 30, 2017 8:29 AM
To: Alessio Silvestro <[email protected]>; [email protected]
Subject: Re: [vpp-dev] Buffer allocation failure

The packet you receive, what do you do with it?

If you don’t forward it, you have two choices:


  *   You could deallocate its buffer.
  *   Or, better, recycle it and use that packets buffer for your outgoing 
packet. That way you avoid the expense of allocating a new one.

Chris.

From: [email protected]<mailto:[email protected]> 
[mailto:[email protected]] On Behalf Of Alessio Silvestro
Sent: Friday, June 30, 2017 8:25
To: [email protected]<mailto:[email protected]>
Subject: [vpp-dev] Buffer allocation failure

Dear vvp-dev,

I developed a new vpp node that listen for UDP traffic on a specific port, 
then, for each received packet, create a new buffer and send an UDP packet to 
the source IP address.

The application is running fine, but when I send some thousands of packets, at 
some point vpp starts to give "buffer allocation failure" error.

Where do you think could be the problem.

Is the node not correctly de-allocating the buffer or there is some specific 
vpp and/or system configuration that can cause this problem?

Best regards,
Alessio
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