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Date: Wed, 5 Dec 2018 23:09:14 -0800
From: Stephen Hemminger <stephen@networkplumber.org>
To: "bai bakari" <912873551@qq.com>
Cc: "dev" <dev@dpdk.org>
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Subject: Re: [dpdk-dev] About the data payload of rte_mbuf?
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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.