Add Stateless support for TRex

1. New Stateless support

2. Stateless High level functionality
• High scale –~10M-22MPPS/core
• Support 1/10/25/40/100* Gb/sec interfaces
• Support for multiple traffic profiles per
interface
• Profile can support multiple streams, scalable
to 10K parallel streams
• Supported for each stream
– Packet template
– Field engine program (src_ip = 10.0.0.1-10.0.0.255)
– Send Mode : Continues/Burst/Multi burst support

3. Stateless High level functionality #2
• Interactive support – GUI/TUI
• Statistic per port
• Statistic per stream (by Hardware)
• Latency Jitter per stream
• Fast Python automation support
– Python 2.7/3.0 Client API
– Python HLTAPI Client API
• Multi-user support

4. Traffic Profile Example

5. Control plane High level

6. Multi User

7. TRex Objects relations

8. Stateful vs Stateless
Feature Stateless Stateful
Flow base No Yes
NAT No Yes
Tunnel Yes Some are supported
L7 App emulation No Yes
Any type of packet Yes No
Latency/Jitter Per Stream Per port/Per flow sample

9. One stream with two directions

10. Python automation example
Python API

11. Python HLTAPI
Automation

12. Interactive Console
#load the trex as a server for interactive mode
$sudo ./t-rex-64 –i
#connect to the server from any server ( Python 2/3.4)
$./trex-console
#start traffic on all port
>start -a -m 1 -f stl/imix_1pkt.py
#pause traffic on all port
>pause -a
#resume traffic on all port
>resume -a
#stop traffic on all port
>stop -a
#show dynamic statistic
>tui
#show port statistic
>stats –p
#clear statistic
>clear
#show stream statistic
>streams
Shell
Console

13. Interactive TUI

14. Performance
Profile name Description Per core performance
imix_1pkt 1 stream/64byte 15-22MPPS
imix_3pkt_vm 3 streams/IMIX/ip range 50Gb/sec
udp_rand_size_9k
1 stream, FE, random packet
size 200Gb/sec
UCS UCS 240M4
NICS 2xXL710
• Number of streams can scale
• Performance depends on many variables.
• Field engine can scale to complex scenarios. Has impact on performance

15. Traffic profile

16. Simple Interleaving streams

17. Simple Interleaving streams -profile

18. Multi streams

19. Multi burst

20. Multi burst profile

21. Field Engine
• Flexible engine to change any field inside the
packet
• Examples
– Change TOS 1-20
– Range of client IP 10.0.0.1-10.0.0.254
– Random packet size 64-9k
– Random dest_ip range
– Support any tunnel even not valid packet like
QinQ/GRE/MPLS/Ipv6/UDP/Ipv4/HTTP
• Plan to add even more flexible engine - JITLUA

22. Field Engine, Syn
attack

23. Multiple Clients example

24. Multiple Clients profile

25. Covert pcap packet file to one stream

26. Pcap file conversion to streams

27. Pcap file conversion to profile of
streams #2
• In this mode pcap in converted to streams and
push to TRex server
• It won’t work on a big pcap file
• There is an API version that push server side
pcap file
• This version is limited only by server disk size.
1TB pcap file is something that we are using

28. Teredo tunnel (IPv6 over IPv4)

29. Per stream statistics
• Implemented using hardware assist with Intel
X710/XL710 NIC flow director rules
• With other NICs (Intel I350, 82599),
implemented in software.

30. Per stream statistics -TOI

31. Per stream statistics – Python API

32. Per stream latency/jitter
• Base on per stream stats hardware assist
• Forward specific type of packets
• Filter is based on IPV4.ID and IPv6.flow_id
• Software measures latency and jitter resolution
is ~usec (not nsec)

33. Per stream statistics -TOI

34. Demo
Cisco ASR 1013 ESP100 100Gb/sec 13RU
- 4KW
UCS-220M2 32GB 2x8 cores 2Ghz
2x82559 NIC (4x10Gb/sec)
0.4KW 1RU , 2K$
finalized the GUI

35. TRex GUI
• Desktop application written in JavaFX
• Support Windows/Mac/Linux
• Like TRex Console gives Stateless functionality
– Build a stream from scratch –Scapy like
– Control e.g. Start/stop/pause/resume
– Live statistics/latency/jitter
• Developed by exalt – still under dev

36. TRex GUI

37. TRex GUI – Stream builder

38. Roadmap
• Finalized the GUI
• FM10K support gives more capability of Per
stream statistic
• L2 Emulations ARP/IPv6 ND
• Routing Emulations BGP/ISIS

39. More info
• Stateless manual
• TRex documents Index
• GitHub

41. Backup

42. Common paths
Path Description
$root t-rex-64/dpdk_set_ports/stl-sim
/stl Stateless native (py) profiles
/stl/yaml Stateless YAML profiles
/stl/hlt Stateless HLT profiles
/ko Kernel modules for DPDK
/external_libs Python external libs used by server/clients
/exp Golden pcap file for unit-tests
/cfg Examples of config files
/cap2 Stateful profiles
/avl Stateful profiles - SFR profile
/automation
Python client/server code for both Stateful and
Stateless
/automation/regression Regression for Stateless and Stateful
/automation/config Regression setups config files
/automation/trex_control_plane/stl Stateless lib and Console
/automation/trex_control_plane/stl/trex_stl_lib Stateless lib
/automation/trex_control_plane/stl/examples Stateless Examples