* [dpdk-users] Sending packets in specific order
@ 2018-04-23 12:25 Sander Ubink
2018-04-23 12:42 ` Paul Emmerich
0 siblings, 1 reply; 2+ messages in thread
From: Sander Ubink @ 2018-04-23 12:25 UTC (permalink / raw)
To: users
Hi,
I'm currently attempting to send a specific pattern of packets using
pktgen. When I dump the mbuf's that are being passed to rte_eth_tx_burst()
I can confirm that they are in the correct order. However, on the receiving
side, tcpdump shows a completely different order. The machines are directly
connected to each other using a QSFP cable. Is the reordering of packets
inherent to the implementation of DPDK or is there some way I can enforce
packets are being send in the order they are provided?
Kind regards,
Sander
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [dpdk-users] Sending packets in specific order
2018-04-23 12:25 [dpdk-users] Sending packets in specific order Sander Ubink
@ 2018-04-23 12:42 ` Paul Emmerich
0 siblings, 0 replies; 2+ messages in thread
From: Paul Emmerich @ 2018-04-23 12:42 UTC (permalink / raw)
To: Sander Ubink; +Cc: users
Try disabling RSS in the driver on the receiving side, it's MQ=0 for ixgbe for example.
Paul
> Am 23.04.2018 um 14:25 schrieb Sander Ubink <sanderubink@gmail.com>:
>
> Hi,
>
> I'm currently attempting to send a specific pattern of packets using
> pktgen. When I dump the mbuf's that are being passed to rte_eth_tx_burst()
> I can confirm that they are in the correct order. However, on the receiving
> side, tcpdump shows a completely different order. The machines are directly
> connected to each other using a QSFP cable. Is the reordering of packets
> inherent to the implementation of DPDK or is there some way I can enforce
> packets are being send in the order they are provided?
>
> Kind regards,
> Sander
--
Chair of Network Architectures and Services
Department of Informatics
Technical University of Munich
Boltzmannstr. 3
85748 Garching bei München, Germany
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