diff options
Diffstat (limited to 'scripts/stl/udp_1pkt_src_ip_split_latency.py')
| -rw-r--r-- | scripts/stl/udp_1pkt_src_ip_split_latency.py | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/scripts/stl/udp_1pkt_src_ip_split_latency.py b/scripts/stl/udp_1pkt_src_ip_split_latency.py index af8d4cd7..4b297d70 100644 --- a/scripts/stl/udp_1pkt_src_ip_split_latency.py +++ b/scripts/stl/udp_1pkt_src_ip_split_latency.py @@ -2,15 +2,22 @@ from trex_stl_lib.api import * # split the range of IP to cores +# add tunable by fsize to change the size of the frame +# latency frame is always 64 +# trex>start -f stl/udp_1pkt_src_ip_split_latency.py -t fsize=64 -m 30% --port 0 --force # +# + class STLS1(object): def __init__ (self): self.fsize =64; + self.lfsize =64; + def create_stream (self, dir,port_id): - # create a base packet and pad it to size - size = self.fsize - 4; # no FCS + # Create base packet and pad it to size + size = self.fsize - 4; # HW will add 4 bytes ethernet FCS if dir==0: src_ip="16.0.0.1" @@ -22,6 +29,7 @@ class STLS1(object): base_pkt = Ether()/IP(src=src_ip,dst=dst_ip)/UDP(dport=12,sport=1025) pad = max(0, size - len(base_pkt)) * 'x' + pad_latency = max(0, (self.lfsize-4) - len(base_pkt)) * 'x' vm = STLScVmRaw( [ STLVmFlowVar ( "ip_src", min_value="10.0.0.1", max_value="10.0.0.255", size=4, step=1,op="inc"), @@ -39,8 +47,7 @@ class STLS1(object): # latency stream - STLStream(packet = STLPktBuilder(pkt = "yaml/udp_64B_no_crc.pcap", - path_relative_to_profile = True), + STLStream(packet = STLPktBuilder(pkt = base_pkt/pad_latency), mode = STLTXCont(pps=1000), flow_stats = STLFlowLatencyStats(pg_id = 12+port_id)) @@ -48,7 +55,9 @@ class STLS1(object): return stream - def get_streams (self, direction = 0, **kwargs): + def get_streams (self, direction = 0, fsize = 64,lfsize = 64, **kwargs): + self.fsize =fsize; + self.lfsize =lfsize return self.create_stream(direction,kwargs['port_id']) |