* [dpdk-users] mlx5: dual port capture
@ 2020-07-24 21:04 PATRICK KEROULAS
2020-07-24 23:48 ` Stephen Hemminger
2020-07-30 19:06 ` PATRICK KEROULAS
0 siblings, 2 replies; 3+ messages in thread
From: PATRICK KEROULAS @ 2020-07-24 21:04 UTC (permalink / raw)
To: users
Hello,
We use 2 physical networks for redundancy. In order to validate that
data on both network is similar, I need to capture traffic on the 2
NIC ports simultaneously, no matter if the result is 2 pcap files.
Since dpdk-pdump seems to work for one single port, I've tried to start
2 pdump processes simultaneously, which leads to a `Cannot reserve
memory` msg for one of these.
I'm not very familiar with how mem pools and queues work. But I feel
like there is a clever way to handle that. Can someone give a hint?
Best regards,
PK
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [dpdk-users] mlx5: dual port capture
2020-07-24 21:04 [dpdk-users] mlx5: dual port capture PATRICK KEROULAS
@ 2020-07-24 23:48 ` Stephen Hemminger
2020-07-30 19:06 ` PATRICK KEROULAS
1 sibling, 0 replies; 3+ messages in thread
From: Stephen Hemminger @ 2020-07-24 23:48 UTC (permalink / raw)
To: PATRICK KEROULAS; +Cc: users
On Fri, 24 Jul 2020 17:04:20 -0400
PATRICK KEROULAS <patrick.keroulas@radio-canada.ca> wrote:
> Hello,
>
> We use 2 physical networks for redundancy. In order to validate that
> data on both network is similar, I need to capture traffic on the 2
> NIC ports simultaneously, no matter if the result is 2 pcap files.
> Since dpdk-pdump seems to work for one single port, I've tried to start
> 2 pdump processes simultaneously, which leads to a `Cannot reserve
> memory` msg for one of these.
>
> I'm not very familiar with how mem pools and queues work. But I feel
> like there is a clever way to handle that. Can someone give a hint?
>
> Best regards,
>
> PK
I did some merged work to support pcapng and multiple interfaces, you can find it in patchwork
or mailing list.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [dpdk-users] mlx5: dual port capture
2020-07-24 21:04 [dpdk-users] mlx5: dual port capture PATRICK KEROULAS
2020-07-24 23:48 ` Stephen Hemminger
@ 2020-07-30 19:06 ` PATRICK KEROULAS
1 sibling, 0 replies; 3+ messages in thread
From: PATRICK KEROULAS @ 2020-07-30 19:06 UTC (permalink / raw)
To: users
dpdk-pdump doc:
"Multiple instances of --pdump can be passed to capture packets
on different port and queue combinations."
On Fri, Jul 24, 2020 at 5:04 PM PATRICK KEROULAS
<patrick.keroulas@radio-canada.ca> wrote:
>
> Hello,
>
> We use 2 physical networks for redundancy. In order to validate that
> data on both network is similar, I need to capture traffic on the 2
> NIC ports simultaneously, no matter if the result is 2 pcap files.
> Since dpdk-pdump seems to work for one single port, I've tried to start
> 2 pdump processes simultaneously, which leads to a `Cannot reserve
> memory` msg for one of these.
>
> I'm not very familiar with how mem pools and queues work. But I feel
> like there is a clever way to handle that. Can someone give a hint?
>
> Best regards,
>
> PK
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2020-07-30 19:06 UTC | newest]
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2020-07-24 21:04 [dpdk-users] mlx5: dual port capture PATRICK KEROULAS
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