TRex Traffic Generator

Contact owners and managers

1–30 of 2156

Welcome to TRex traffic generator group!

Post here your questions to the TRex DEV team.

You're welcome to check out TRex website and the GitHub repository

Due to a spam attack the policy was changed to allow only group member to post messages. Please send a request with a reason.

0 selected

Hanoch Haim, sre...@benunets.com8

4/28/20

Announcement

TRex EMU for client protocols (beta) v2.76

Hi Hanoh, I am simulating 10K GRE tunnels, under each tunnel bringing up 10 dhcp clients. Earlier

unread,

Announcement

TRex EMU for client protocols (beta) v2.76

Hi Hanoh, I am simulating 10K GRE tunnels, under each tunnel bringing up 10 dhcp clients. Earlier

4/28/20

Johannes Luther

Jul 14

TRex client Python 3.12 support

Hi team, I'm aware, that there are no new TRex releases lately. Seems like the development in

unread,

TRex client Python 3.12 support

Hi team, I'm aware, that there are no new TRex releases lately. Seems like the development in

Jul 14

robert.b...@gmail.com

Jun 20

IPG is not being followed when using ASTF-flow

Hi guys, have a problem, that when we want to generate following PCAP that is attached, the IPG is

unread,

IPG is not being followed when using ASTF-flow

Hi guys, have a problem, that when we want to generate following PCAP that is attached, the IPG is

Jun 20

Bent Kuhre

May 26

regression test

Hi I am trying to run the regression test, but I got the following error: ImportError: cannot import

unread,

regression test

Hi I am trying to run the regression test, but I got the following error: ImportError: cannot import

May 26

mura...@gmail.com

May 6

How to check port is in active or not

Hi Team, While modifying the traffic stream i am getting the below error. How to check port is in

unread,

How to check port is in active or not

Hi Team, While modifying the traffic stream i am getting the below error. How to check port is in

May 6

Haresh Khandelwal

May 5

Trex bird integration does not support evpn route type 5

Hi, I am trying to use BIRD to advertise and receive EVPN type 5 routes where the remote end is using

unread,

Trex bird integration does not support evpn route type 5

Hi, I am trying to use BIRD to advertise and receive EVPN type 5 routes where the remote end is using

May 5

Vivek Sharma

May 2

Statistics collection using Python API

Adding for easier reference for others who might be interested in pulling statistics from Trex and

unread,

Statistics collection using Python API

Adding for easier reference for others who might be interested in pulling statistics from Trex and

May 2

Mohsen Meamarian

Apr 23

Latency meaerments

Hi, When i am sending pkts with latency tag with trex, only if i be in service mode (via console) i

unread,

Latency meaerments

Hi, When i am sending pkts with latency tag with trex, only if i be in service mode (via console) i

Apr 23

mura...@gmail.com, Foday Harris2

Apr 22

Need filters to apply on RX port of trex

Having the same issue. tried to use flow id but doesn't really work when running between two

unread,

Need filters to apply on RX port of trex

Having the same issue. tried to use flow id but doesn't really work when running between two

Apr 22

Haklat haklat, … Todd Blevins3

Apr 18

TRex lcore limit

i have a setup with 512 cores: NUMA node0 CPU(s): 0-127256-383 NUMA node1 CPU(s): 128-255384-511 made

unread,

TRex lcore limit

i have a setup with 512 cores: NUMA node0 CPU(s): 0-127256-383 NUMA node1 CPU(s): 128-255384-511 made

Apr 18

Andreas Bourges, … Haklat haklat4

Apr 8

*** Failed allocating statistic counter

Hi, I finally tried compiling with: - trex_driver_mlx5.cpp: num_counters = 127; //With MAX_FLOW_STATS

unread,

*** Failed allocating statistic counter

Hi, I finally tried compiling with: - trex_driver_mlx5.cpp: num_counters = 127; //With MAX_FLOW_STATS

Apr 8

Mohsen Meamarian

Apr 4

TRex Skipping Latency Packet

Hi, I'm facing an issue where TRex doesn't recognize the latency packet, even though both

unread,

TRex Skipping Latency Packet

Hi, I'm facing an issue where TRex doesn't recognize the latency packet, even though both

Apr 4

brendana...@gmail.com

Mar 23

tui won’t run

Hello, I have a trex instance I haven't used in a while. I can get traffic to work just fine.

unread,

tui won’t run

Hello, I have a trex instance I haven't used in a while. I can get traffic to work just fine.

Mar 23

Цветков Андрей, … Dominik Tran9

Mar 4

trex v3.06

We had same problem with TRex v3.06 on clean Debian 12 (./_t-rex-64: so/x86_64/libstdc++.so.6:

unread,

trex v3.06

We had same problem with TRex v3.06 on clean Debian 12 (./_t-rex-64: so/x86_64/libstdc++.so.6:

Mar 4

Christopher Adigun2

Feb 20

GTPU LoadTest on VPP

Apologies this looks more like incomplete VPP GTPU config for the return traffic. I will continue

unread,

GTPU LoadTest on VPP

Apologies this looks more like incomplete VPP GTPU config for the return traffic. I will continue

Feb 20

chris...@gmail.com, hanoh haim4

Feb 11

How are Linux namespaces associated with trex interface ?

Hi Hanoh , I could resolve the transmission of packets out of sriov vf though mac address doesn't

unread,

How are Linux namespaces associated with trex interface ?

Hi Hanoh , I could resolve the transmission of packets out of sriov vf though mac address doesn't

Feb 11

mura...@gmail.com, Цветков Андрей2

Feb 10

Need to connect two TRex server (1gig and 10gig) in single API connect call

Hi Yes. it possible two servers - client / sever 1 config client - interfaces: ['07:00.0',

unread,

Need to connect two TRex server (1gig and 10gig) in single API connect call

Hi Yes. it possible two servers - client / sever 1 config client - interfaces: ['07:00.0',

Feb 10

Haresh Khandelwal, Цветков Андрей3

Feb 10

Queue_full and virtio vhu interface

Hi Set addishinal pameters for virt nic - queues="16" rx_queue_size="1024"

unread,

Queue_full and virtio vhu interface

Hi Set addishinal pameters for virt nic - queues="16" rx_queue_size="1024"

Feb 10

Andreas Bourges

Jan 28

[STL][IPv6] STLVmFixChecksumHw

Hi Team - hope you're all doing well... ...I'm currently onboarding at a new customer and

unread,

[STL][IPv6] STLVmFixChecksumHw

Hi Team - hope you're all doing well... ...I'm currently onboarding at a new customer and

Jan 28

Mohsen Meamarian

Jan 14

min ramp up time

Hi, Does anyone know the minimum ramp-up time for STL in TRex when using the SingleBurst API?

unread,

min ramp up time

Hi, Does anyone know the minimum ramp-up time for STL in TRex when using the SingleBurst API?

Jan 14

Mohsen Meamarian

Jan 10

STLTXSingleBurst Ramp-Up Time and Narrow Bursts in TRex v3.4

Hi everyone, I have a question regarding the ramp-up time for the STLTXSingleBurst feature in TRex v3

unread,

STLTXSingleBurst Ramp-Up Time and Narrow Bursts in TRex v3.4

Hi everyone, I have a question regarding the ramp-up time for the STLTXSingleBurst feature in TRex v3

Jan 10

btjo...@gmail.com

11/27/24

FATAL errors when starting TRex v3.06 in stateless mode

I've been trying to uplift a TRex configuration that runs fine with v2.81 to v3.06. The system is

unread,

FATAL errors when starting TRex v3.06 in stateless mode

I've been trying to uplift a TRex configuration that runs fine with v2.81 to v3.06. The system is

11/27/24

shashank varshney, Mohsen Meamarian2

11/15/24

Not able to use all available cores - try to reduce `-c value ` or 'c:' in the config file error

Hi, We have the same problem, any solution guys? Best, On Thursday, June 9, 2022 at 6:54:49 AM UTC+2

unread,

Not able to use all available cores - try to reduce `-c value ` or 'c:' in the config file error

Hi, We have the same problem, any solution guys? Best, On Thursday, June 9, 2022 at 6:54:49 AM UTC+2

11/15/24

chris...@gmail.com

11/14/24

trex_stack_linux_based.cpp- Need help in understanding on how arp and ping works when linux_based namespaces are configured ?

Hi All , I am creating linux_based network namespaces using trex. I understand one end of veth pair

unread,

trex_stack_linux_based.cpp- Need help in understanding on how arp and ping works when linux_based namespaces are configured ?

Hi All , I am creating linux_based network namespaces using trex. I understand one end of veth pair

11/14/24

chris...@gmail.com4

11/11/24

ping to newly added node on port 1 is failing

Hi All , Any hints on this namespace ping failure ? Thanks, Chris On Monday 4 November 2024 at 17:24:

unread,

ping to newly added node on port 1 is failing

Hi All , Any hints on this namespace ping failure ? Thanks, Chris On Monday 4 November 2024 at 17:24:

11/11/24

chris...@gmail.com

11/11/24

Trex Application Logs

Hi , I would like to see the trex server logs and dpdk application logs. I am running trex 2.90

unread,

Trex Application Logs

Hi , I would like to see the trex server logs and dpdk application logs. I am running trex 2.90

11/11/24

chris...@gmail.com2

10/24/24

Linux namespaces created via trex shows vlan within trex but in linux when we check the same it doesn't

Here too i don't see the vlan: ip -d link show trex-a-0-1-T 15: trex-a-0-1-T@if14: <BROADCAST,

unread,

Linux namespaces created via trex shows vlan within trex but in linux when we check the same it doesn't

Here too i don't see the vlan: ip -d link show trex-a-0-1-T 15: trex-a-0-1-T@if14: <BROADCAST,

10/24/24

Foday Harris2

10/23/24

How can I obtaing a slacc ip address when not using the lenux kernel?

Issue resolved by sending an RS packet

unread,

How can I obtaing a slacc ip address when not using the lenux kernel?

Issue resolved by sending an RS packet

10/23/24

freddy.b...@gmail.com, … Foday Harris10

10/23/24

trex v3.05 on Ubuntu 24.04 with Kernel 6.8 and Python 3.12 doesn't work

Issue was resolved by this https://groups.google.com/g/trex-tgn/c/iz06h7vkdgA/m/u98a2f5pAgAJ On

unread,

trex v3.05 on Ubuntu 24.04 with Kernel 6.8 and Python 3.12 doesn't work

Issue was resolved by this https://groups.google.com/g/trex-tgn/c/iz06h7vkdgA/m/u98a2f5pAgAJ On

10/23/24

Foday Harris

10/23/24

astf stateful traffic between two PCs running trex

I am trying to run astf stateful traffic between two linux pcs running instances of trex. I tried

unread,

astf stateful traffic between two PCs running trex

I am trying to run astf stateful traffic between two linux pcs running instances of trex. I tried

10/23/24

Vijay Ram

10/22/24

ASTF stats per PCAP level

Hello, I'm working on QoS to test our router. I have two PCAPs in my ASTF profile, one PCAP is

unread,

ASTF stats per PCAP level

Hello, I'm working on QoS to test our router. I have two PCAPs in my ASTF profile, one PCAP is

10/22/24