anchor.diff:  * visual latency/jitter/per stream statistic 
   * Free
   
  -More here link:https://github.com/cisco-system-traffic-generator/trex-stateless-gui[trex-stateless-gui]
  -
  -image::https://trex-tgn.cisco.com/trex/doc/images/t_g1.gif[title="",align="center",width=200, link="http://trex-tgn.cisco.com/trex/doc/images/t_g1.gif"]
  +Github is here link:https://github.com/cisco-system-traffic-generator/trex-stateless-gui[trex-stateless-gui]
  +
  +image::https://github.com/cisco-system-traffic-generator/trex-core/tree/master/doc/images/t_g1.gif[title="",align="center",width=200, link="https://github.com/cisco-system-traffic-generator/trex-core/tree/master/doc/images/t_g1.gif"]
   
   === Sandbox for evaluation
   
  
positive.code: * Accurate TCP implementation (at least BSD based)
  * Ability to change fields in the L7 application - for example, change HTTP User-Agent field
  
  more can be seen here link:https://communities.cisco.com/community/developer/trex/blog/2017/06/20/trex-upcoming-stateful-scalable-tcp-support[scalable TCP]
  
  === What it is not
  
  
negative.code: 
  == TRex Low-Cost, High-Speed Stateful Traffic Generator 
  
  TRex is a traffic generator for Stateful and Stateless usecases. 
  
  Traditionally, network infrastructure devices have been tested using commercial traffic generators, while performance was measured using metrics like packets per second (PPS) and No Drop Rate (NDR). As the network infrastructure functionality has become more complex, stateful traffic generators have become necessary in order to test with more realistic application traffic pattern scenarios.
  Realistic and Stateful traffic generators are needed in order to:
  
  