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from trex_stl_lib.api import *
# 1 clients MAC override the LSB of destination
class STLS1(object):
def __init__ (self):
self.fsize =64; # the size of the packet
def create_stream (self):
# Create base packet and pad it to size
size = self.fsize - 4; # HW will add 4 bytes ethernet FCS
base_pkt = Ether()/IP(src="16.0.0.1",dst="48.0.0.1")/UDP(dport=12,sport=1025)
base_pkt1 = Ether()/IP(src="16.0.0.2",dst="48.0.0.1")/UDP(dport=12,sport=1025)
base_pkt2 = Ether()/IP(src="16.0.0.3",dst="48.0.0.1")/UDP(dport=12,sport=1025)
pad = max(0, size - len(base_pkt)) * 'x'
return STLProfile( [ STLStream( isg = 10.0, # start in delay
name ='S0',
packet = STLPktBuilder(pkt = base_pkt/pad),
mode = STLTXSingleBurst( pps = 10, total_pkts = 1),
next = 'S1'), # point to next stream
STLStream( self_start = False, # Stream is disabled. Will run because it is pointed from S0
name ='S1',
packet = STLPktBuilder(pkt = base_pkt1/pad),
mode = STLTXSingleBurst( pps = 10, total_pkts = 2),
next = 'S2' ),
STLStream( self_start = False, # Stream is disabled. Will run because it is pointed from S1
name ='S2',
packet = STLPktBuilder(pkt = base_pkt2/pad),
mode = STLTXSingleBurst( pps = 10, total_pkts = 3 ),
action_count = 2, # loop 2 times
next = 'S0' # back to S0 loop
)
]).get_streams()
def get_streams (self, direction = 0, **kwargs):
# create 1 stream
return self.create_stream()
# dynamic load - used for trex console or simulator
def register():
return STLS1()
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