### Single stream UDP packet, 64B ###
#####################################
- name: udp_64B
  stream:
    self_start: True
    packet:
      binary: stl/udp_64B_no_crc.pcap  # pcap should not include CRC
    mode:
      type: continuous
      pps: 100
    rx_stats: []

    # program that define 1M flows with IP range 16.0.0.1-16.0.0.254
    # we will create a script that do that for you 
    # this is the low level instructions 
    vm: [
               {
                 "type" : "tuple_flow_var",   # name of the command 

                 "name" : "tuple_gen",    # tuple_gen.ip tuple_gen.port can be used 

                 "ip_min"   : 0x10000001,  # min ip 16.0.0.1
                 "ip_max"   : 0x100000fe,  # max ip 16.0.0.254
                  
                 "port_min" : 1025,        # min port 1025     
                 "port_max" : 65500,       # max port 65500
                  
                 "limit_flows" : 1000000,  # number of flows 
                 "flags"       : 0,        # 1 - for unlimited  
               },

               {
                  "type" : "write_flow_var", # command name 

                  "name" : "tuple_gen.ip",  # varible to write     
                  
                  "add_value" : 0,          # no need to add value     
                  
                  "is_big_endian" : true,   # write as big edian 
                  
                  "pkt_offset" : 26,        # write tuple_gen.ip into ipv4.src_ip   
               },
               
               {
                  "type" : "fix_checksum_ipv4", # fix ipv4 header checksum 

                  "pkt_offset" : 14,          # offset of ipv4 header 
                  
               },

               {
                  "type" : "write_flow_var", # command name 

                  "name" : "tuple_gen.port",  # varible to write     
                  
                  "add_value" : 0,          # no need to add value     
                  
                  "is_big_endian" : true,   # write as big edian 
                  
                  "pkt_offset" : 34,        # write tuple_gen.port into udp.src_port
               }

        ]