From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <stephen@networkplumber.org>
Subject: Re: About the data payload of rte_mbuf?
Date: Thu, 6 Dec 2018 09:22:25 -0800
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Cc: bai bakari <912873551@qq.com>, dev <dev@dpdk.org>
To: "Wiles, Keith" <keith.wiles@intel.com>
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On Thu, 6 Dec 2018 15:17:19 +0000
"Wiles, Keith" <keith.wiles@intel.com> wrote:

> > On Dec 6, 2018, at 12:09 AM, Stephen Hemminger <stephen@networkplumber.org> wrote:
> > 
> > On Thu, 6 Dec 2018 11:45:22 +0800
> > "bai bakari" <912873551@qq.com> wrote:
> >   
> >> when i send packets using dpdk-pktgen, i found:
> >> ip_len = 46
> >> ip_header_len = 20
> >> but the tcp_header_len=(tcp_hdr->data_off << 2)=0, 
> >> and (payload - (uint8_t *)ipv4_hdr) = 340 > ip_len.  
> > 
> > 
> > dpdk pktgen sends UDP not TCP.  
> 
> Not sure I understand this statement Pktgen can send UDP or TCP, it depends on the configuration. Does your statement mean Pktgen has a bug or what ?
> 
> Regards,
> Keith
> 

I just wanted to make sure that user had configured TCP, and not UDP>