Trex in promiscuous mode

santhosh kumar

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Apr 29, 2016, 7:26:31 PM4/29/16

to TRex Traffic Generator

I see an option to configuring a port to promiscuous mode from console "portattr -a --prom". I wanted to know if there is any command line option while running TRex.

Thanks
santhosh

Itay Marom

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Apr 30, 2016, 2:06:35 PM4/30/16

to santhosh kumar, TRex Traffic Generator

Hi Santhosh,

There isn't a specific switch for promiscuous mode.

However,

Some time ago we added an option for a batch file running commands at startup.

I'll send you an example tomorrow.

This is a generic solution and you can basically do anything you can from the console

at startup.

Thanks,

Itay

santhosh

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Itay Marom

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Apr 30, 2016, 4:48:12 PM4/30/16

to santhosh kumar, TRex Traffic Generator

Hi Santhosh,

Just to emphasize another point:

All of the switches for the client are client oriented switches:

such as how to connect, which ports to acquire and etc.

However,

the 'portattr' is a server command.

this means that entering the console, doing portattr --prom and exiting will not reset the setting.

when you reconnect to the console, you will see that the ports are still on promiscuous mode.

And as I said, we support batch commands, which can include server commands such as portattr.

Thanks,

Itay

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Itay Marom

hanoh haim

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May 2, 2016, 6:29:35 AM5/2/16

to Itay Marom, santhosh kumar, TRex Traffic Generator

Hi Itay,

I think it would be better to change the default server port state to be promiscuous.

This will reduce the number of questions

thanks,

Hanoh

To view this discussion on the web visit https://groups.google.com/d/msgid/trex-tgn/CAPXuVffhBWYnGjcD5ikFnn8Uq7EQi-q43qWACAwtG-zuWxhNJw%40mail.gmail.com.

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Hanoh

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santhosh kumar

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May 2, 2016, 2:29:35 PM5/2/16

to Itay Marom, TRex Traffic Generator

Hi Itay,

Thanks for the clarification.

I set the promiscuous mode from the console and then exited the console. The setting are not reset when I login again.

trex>stats--ps
Port Status

port | 0 | 1
-------------------------------------------------------------
driver | rte_ixgbe_pmd | rte_ixgbe_pmd
maximum | 10 Gb/s | 10 Gb/s
status | IDLE | IDLE
promiscuous | on | on
-- | |
HW src mac | 00:00:00:00:00:00 | 00:00:00:00:00:00
SW src mac | 02:00:00:00:00:00 | 02:00:00:00:00:01
SW dst mac | 90:e2:ba:08:42:d4 | 90:e2:ba:08:42:d5
--- | |
PCI Address | 0000:05:00.0 | 0000:05:00.1
NUMA Node | 0 | 0

However if I run with command line option "./t-rex-64-o -c 10 -f cap2/dns.yaml -l 10000 -m 28mpps -d 60 ", I see packets are not received (rx_ok is still zero)

Total-Tx : 21.23 Mbps
Total-Rx : 0.00 bps
Total-PPS : 38.91 Kpps
Total-CPS : 31.88 cps

Expected-PPS : 56.00 Kpps
Expected-CPS : 28.00 Kcps
Expected-BPS : 29.57 Mbps

Active-flows : 255 Clients : 250 Socket-util : 0.0016 %
Open-flows : 255 Servers : 250 Socket : 255 Socket/Clients : 1.0
drop-rate : 21.23 Mbps
current time : 4.0 sec
test duration : 56.0 sec

-Latency stats enabled
Cpu Utilization : 0.5 %
if| tx_ok , rx_ok , rx check ,error, latency (usec) , Jitter max window
| , , , , average , max , (usec)
----------------------------------------------------------------------------------------------------------------
0 | 30038, 0, 0, 0, 0 , 0, 0 | 0 0 0 0 0 0 0 0 0 0 0 0 0
1 | 30038, 0, 0, 0, 0 , 0, 0 | 0 0 0 0 0 0 0 0 0 0 0 0 0
All cores stopped !!

I have a setup with 2 10G ports connected from dut1 back to back to dut2. I send udp packets from both client and server ports and the packet gets L3fwd at dut2 and are send back to dut2.

When I set the Src MAC in .yaml file I receive the packets.

I guess when running t-rex in command line the promiscuous settings are not getting enabled.

Can you please let me know what's wrong here ?

Thanks

santhosh

hanoh haim

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May 2, 2016, 3:30:58 PM5/2/16

to santhosh kumar, Itay Marom, TRex Traffic Generator

Hi,

This is correct. in TRex Stateful mode it is support only non-promiscuous mode as we are dealing with L7 testing.

thanks

Hanoh

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