5/2016 TRex Team v0.2
New Stateless support
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
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
Traffic Profile Example
Control plane High level
Multi User
TRex Objects relations
Stateful vs Stateless
Feature Stateless StatefulFlow base No Yes
NAT No YesTunnel Yes Some are supported
L7 App emulation No Yes
Any type of packet Yes No
Latency/Jitter Per Stream Per port/Per flow sample
One stream with two directions
Python automation example
Python API
Python HLTAPI Automation
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
Interactive TUI
Performance
Profile name Description Per core performanceimix_1pkt 1 stream/64byte 15-22MPPS
imix_3pkt_vm 3 streams/IMIX/ip range 50Gb/sec
udp_rand_size_9k1 stream, FE, random packet size 200Gb/sec
UCS UCS 240M4NICS 2xXL710
• Number of streams can scale • Performance depends on many variables.• Field engine can scale to complex scenarios. Has impact on performance
Traffic profile
Simple Interleaving streams
Simple Interleaving streams -profile
Multi streams
Multi burst
Multi burst profile
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
Field Engine, Syn attack
Multiple Clients example
Multiple Clients profile
Covert pcap packet file to one stream
Pcap file conversion to streams
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
Teredo tunnel (IPv6 over IPv4)
Per stream statistics• Implemented using hardware assist with Intel
X710/XL710 NIC flow director rules• With other NICs (Intel I350, 82599),
implemented in software.
Per stream statistics -TOI
Per stream statistics – Python API
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)
Per stream statistics -TOI
DemoCisco ASR 1013 ESP100 100Gb/sec 13RU - 4KW
UCS-220M2 32GB 2x8 cores 2Ghz 2x82559 NIC (4x10Gb/sec)0.4KW 1RU , 2K$
finalized the GUI
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
TRex GUI
TRex GUI – Stream builder
Roadmap
• Finalized the GUI • FM10K support gives more capability of Per
stream statistic • L2 Emulations ARP/IPv6 ND• Routing Emulations BGP/ISIS
More info
• Stateless manual• TRex documents Index • GitHub
Thank you !
Backup
Common pathsPath 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