[dpdk-users] a packet generator with traffic flow support

[dpdk-users] a packet generator with traffic flow support

[Alex Kiselev]

Hi!

I am working on some stress tests for my packet forwarding engine
and trying to figure out which packet generator tool can help me
to accomplish my tasks with minimum efforts from me. What I need is something
like PktGen but with a kind of traffic flow/session support.
The flow/session in my case is a traffic flow with the following properties:
 - QinQ vids, src ip, dst ip etc
 - time to live

In addition, it would ideal if a tool could support defining pps rate of each
flow or just a total pps of all flows.

So, a packet generator should be able to start in parallel some number
of flows, then it should replace completed sessions whose ttl is
expired with new
ones until the goal (the given number of sessions or the given number
of packets)
is complete.

Maybe Warp17 is more close to the kind of tool that I need in terms of
flow support, but I don't need tcp/udp flows and I need a way to
define L2 packet headers.

Is it possible to code the flow logic that I need using PktGen
scripting language?

I would appreciate any ideas. Thanks.

-- 
--
Kiselev Alexander

Re: [dpdk-users] a packet generator with traffic flow support

[Wiles, Keith]

> On Feb 20, 2017, at 12:53 PM, Alex Kiselev <kiselev99@gmail.com> wrote:
> 
> Hi!
> 
> I am working on some stress tests for my packet forwarding engine
> and trying to figure out which packet generator tool can help me
> to accomplish my tasks with minimum efforts from me. What I need is something
> like PktGen but with a kind of traffic flow/session support.
> The flow/session in my case is a traffic flow with the following properties:
> - QinQ vids, src ip, dst ip etc
> - time to live
> 
> In addition, it would ideal if a tool could support defining pps rate of each
> flow or just a total pps of all flows.
> 
> So, a packet generator should be able to start in parallel some number
> of flows, then it should replace completed sessions whose ttl is
> expired with new
> ones until the goal (the given number of sessions or the given number
> of packets)
> is complete.
> 
> Maybe Warp17 is more close to the kind of tool that I need in terms of
> flow support, but I don't need tcp/udp flows and I need a way to
> define L2 packet headers.
> 
> Is it possible to code the flow logic that I need using PktGen
> scripting language?

The tool pktgen-dpdk does some of the items you want, but not all. Have you looked a the different modes pktgen-dpdk can handle like pcap or range support?

Also T-Rex traffic generator may have some of the features you are looking as it is a bit more programable using Python. Pktgen Lua scripting is really used to control Pktgen and not generate packets on the fly. Pktgen has a number of modes single, range, random, PCAP, sequence, which could be used with an external switch to merge the different TX options to a single target. I assume using an external switch maybe not work very well here.

> 
> I would appreciate any ideas. Thanks.
> 
> -- 
> --
> Kiselev Alexander

Regards,
Keith

Re: [dpdk-users] a packet generator with traffic flow support

[Alex Kiselev]

2017-02-21 0:23 GMT+03:00 Wiles, Keith <keith.wiles@intel.com>:
>
>> On Feb 20, 2017, at 12:53 PM, Alex Kiselev <kiselev99@gmail.com> wrote:
>>
>> Hi!
>>
>> I am working on some stress tests for my packet forwarding engine
>> and trying to figure out which packet generator tool can help me
>> to accomplish my tasks with minimum efforts from me. What I need is something
>> like PktGen but with a kind of traffic flow/session support.
>> The flow/session in my case is a traffic flow with the following properties:
>> - QinQ vids, src ip, dst ip etc
>> - time to live
>>
>> In addition, it would ideal if a tool could support defining pps rate of each
>> flow or just a total pps of all flows.
>>
>> So, a packet generator should be able to start in parallel some number
>> of flows, then it should replace completed sessions whose ttl is
>> expired with new
>> ones until the goal (the given number of sessions or the given number
>> of packets)
>> is complete.
>>
>> Maybe Warp17 is more close to the kind of tool that I need in terms of
>> flow support, but I don't need tcp/udp flows and I need a way to
>> define L2 packet headers.
>>
>> Is it possible to code the flow logic that I need using PktGen
>> scripting language?
>
> The tool pktgen-dpdk does some of the items you want, but not all. Have you looked a the different modes pktgen-dpdk can handle like pcap or range support?

Yes, I've tried all pktgen modes.

>
> Also T-Rex traffic generator may have some of the features you are looking as it is a bit more programable using Python.
Thank you. I will take a look at it.


  Pktgen Lua scripting is really used to control Pktgen and not
generate packets on the fly. Pktgen has a number of modes single,
range, random, PCAP, sequence, which could be used with an external
switch to merge the different TX options to a single target. I assume
using an external switch maybe not work very well here.
>
>>
>> I would appreciate any ideas. Thanks.
>>
>> --
>> --
>> Kiselev Alexander
>
> Regards,
> Keith
>



-- 
--
Kiselev Alexander