DPDK in a box aka loopback scenario

Sandeep Raman

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Feb 18, 2018, 10:30:02 AM2/18/18

to TRex Traffic Generator

Hi,

I am testing RFC2544 based scenario with TRex and 2-port Intel 560 NIC.

ens2f0 - 10.70.12.200/24 - 14:02:ec:74:2b:ec - 05:00.0

ens2f1 - 10.70.3.200/24 - 14:02:ec:74:2b:ed - 05:00.1

I configured the yaml file for 2 scenarios, one ip based and the other mac based.

The command used: ./t-rex-64 -f cap2/imix_64_100k.yaml -c 4 -d 30

IP based: Failed resolving dest MAC for default gateway:10.70.3.1 on port 1

[root@trexnode v2.36]# cat /etc/trex_cfg.yaml

- port_limit : 2

version : 2

#List of interfaces. Change to suit your setup. Use ./dpdk_setup_ports.py -s to see available options

interfaces : ["05:00.0","05:00.1"]

port_info : # Port IPs. Change to suit your needs. In case of loopback, you can leave as is.

- ip : 10.70.12.205

default_gw : 10.70.12.1

- ip : 10.70.3.205

default_gw : 10.70.3.1

[root@trexnode v2.36]#

The ip's 10.70.12.205 and 10.70.3.205 fall in the same network as the ip assigned to ens2f0 and ens2f1.

Ip assigned to ens2f0 and ens2f1 is 10.70.12.200 and 10.70.3.200 as mentioned above.

[root@trexnode v2.36]# ./t-rex-64 -f cap2/imix_64_100k.yaml -c 4 -d 30

The ports are bound/configured.

Starting TRex v2.36 please wait ...

set driver name net_ixgbe

driver capability : TCP_UDP_OFFLOAD TSO

Number of ports found: 2

zmq publisher at: tcp://*:4500

wait 1 sec .

port : 0

------------

link : link : Link Up - speed 10000 Mbps - full-duplex

promiscuous : 0

port : 1

------------

link : link : Link Up - speed 10000 Mbps - full-duplex

promiscuous : 0

number of ports : 2

max cores for 2 ports : 4

max queue per port : 6

no client generator pool configured, using default pool

no server generator pool configured, using default pool

-------------------------------

RX core uses TX queue number 5 on all ports

core, c-port, c-queue, s-port, s-queue, lat-queue

------------------------------------------

1 0 0 1 0 255

2 0 1 1 1 255

3 0 2 1 2 255

4 0 3 1 3 255

-------------------------------

no client generator pool configured, using default pool

no server generator pool configured, using default pool

-- loading cap file cap2/udp_64B.pcap

Failed resolving dest MAC for default gateway:10.70.3.1 on port 1

[root@trexnode v2.36]#

MAC based: No traffic on Port 1

[root@trexnode v2.36]# cat ../trex_cfg_files/trex_mac_cfg.yaml

- port_limit : 2 # this option can limit the number of port of the platform

version : 2

interfaces : ["05:00.0","05:00.1"] # list of the interfaces to bind run ./dpdk_nic_bind.py --status

port_info : # set eh mac addr

- dest_mac : '14:02:ec:74:2b:ed'

src_mac : '14:02:ec:74:2b:ec'

- dest_mac : '14:02:ec:74:2b:ec'

src_mac : '14:02:ec:74:2b:ed'

[root@trexnode v2.36]#

ens2f0: 14:02:ec:74:2b:ec

ens2f1: 14:02:ec:74:2b:ed

Full output: http://dpaste.com/099Y5JB.txt

Am i missing any configuration. Any pointers what needs to be done so traffic is generated on Port 1 also.

Thanks,

Sandeep.

Sandeep Raman

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Feb 19, 2018, 11:31:29 AM2/19/18

to TRex Traffic Generator

I found a similar post for a XL710 https://groups.google.com/forum/#!topic/trex-tgn/LOYxOXdZuKY. I do not see the EAL lines to say if it is a similar footprint.

I started TRex in stateless mode and it failed for both the MACS as below:

[root@trexnode v2.36]# ./t-rex-64 -i

Starting Scapy server.... Scapy server is started

The ports are bound/configured.

Starting TRex v2.36 please wait ...

set driver name net_ixgbe

driver capability : TCP_UDP_OFFLOAD TSO

Number of ports found: 2

zmq publisher at: tcp://*:4500

wait 1 sec .

port : 0

------------

link : link : Link Up - speed 10000 Mbps - full-duplex

promiscuous : 0

port : 1

------------

link : link : Link Up - speed 10000 Mbps - full-duplex

promiscuous : 0

number of ports : 2

max cores for 2 ports : 1

max queue per port : 3

-------------------------------

RX core uses TX queue number 1 on all ports

core, c-port, c-queue, s-port, s-queue, lat-queue

------------------------------------------

1 0 0 1 0 2

-------------------------------

Failed resolving dest MAC for default gateway:10.70.12.200 on port 0

Failed resolving dest MAC for default gateway:10.70.3.200 on port 1

What is TRex looking for in order to be able to resolve the MAC.

Sandeep Raman

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Feb 20, 2018, 7:03:44 AM2/20/18

to TRex Traffic Generator

This is working now. See output below. The issue was in the Switch configuration, the two interfaces were in a BAGG. I removed the interfaces from the BAGG and it was able to reach the gateway.

---------------

port : 0

------------

opackets : 1098149

obytes : 70525834

ipackets : 1094

ibytes : 73896

Tx : 2.65 Mbps

port : 1

------------

opackets : 122149

obytes : 8061834

ipackets : 1103

ibytes : 74408

Tx : 306.13 Kbps

Cpu Utilization : 0.3 % 0.6 Gb/core

Platform_factor : 1.0

Total-Tx : 2.95 Mbps

Total-Rx : 10.19 Kbps

Total-PPS : 5.73 Kpps

Total-CPS : 0.00 cps

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telu...@gmail.com

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May 29, 2019, 5:42:29 AM5/29/19

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root@mao-vm:/home/mao/v2.56# sudo ./t-rex-64 -f cap2/dns.yaml -d 1 -l 1000
The ports are bound/configured.
Starting TRex v2.56 please wait ...
set driver name net_e1000_em
driver capability : TCP_UDP_OFFLOAD
set dpdk queues mode to ONE_QUE

Number of ports found: 2
zmq publisher at: tcp://*:4500

EAL: Error enabling interrupts for fd 19 (Input/output error)
EAL: Error enabling interrupts for fd 21 (Input/output error)

wait 1 sec .
port : 0
------------

link : link : Link Up - speed 1000 Mbps - full-duplex

promiscuous : 0
port : 1
------------

link : link : Link Up - speed 1000 Mbps - full-duplex

promiscuous : 0
number of ports : 2

max cores for 2 ports : 1
tx queues per port : 3

no client generator pool configured, using default pool
no server generator pool configured, using default pool
-------------------------------

RX core uses TX queue number 65535 on all ports

core, c-port, c-queue, s-port, s-queue, lat-queue
------------------------------------------

1 0 0 1 0 0

-------------------------------
no client generator pool configured, using default pool
no server generator pool configured, using default pool

-- loading cap file cap2/dns.pcap
Failed resolving dest MAC for default gateway:10.10.2.1 on port 1
root@mao-vm:/home/mao/v2.56# sudo ./t-rex-64 -f cap2/dns.yaml -d 1 -l 1000
The ports are bound/configured.
Starting TRex v2.56 please wait ...
set driver name net_e1000_em
driver capability : TCP_UDP_OFFLOAD
set dpdk queues mode to ONE_QUE

Number of ports found: 2
zmq publisher at: tcp://*:4500

EAL: Error enabling interrupts for fd 19 (Input/output error)
EAL: Error enabling interrupts for fd 21 (Input/output error)

wait 1 sec .
port : 0
------------

link : link : Link Up - speed 1000 Mbps - full-duplex

promiscuous : 0
port : 1
------------

link : link : Link Up - speed 1000 Mbps - full-duplex

promiscuous : 0
number of ports : 2

max cores for 2 ports : 1
tx queues per port : 3

no client generator pool configured, using default pool
no server generator pool configured, using default pool
-------------------------------

RX core uses TX queue number 65535 on all ports

core, c-port, c-queue, s-port, s-queue, lat-queue
------------------------------------------

1 0 0 1 0 0

-------------------------------
no client generator pool configured, using default pool
no server generator pool configured, using default pool

-- loading cap file cap2/dns.pcap
Failed resolving dest MAC for default gateway:10.10.2.1 on port 1

I don't why this situation happened, and how to configured the generator pool

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DPDK in a box aka loopback scenario - No traffic on Port 1

Sandeep Raman

Sandeep Raman

Sandeep Raman

telu...@gmail.com