diff options
Diffstat (limited to 'GPL/traffic_profiles/trex/trex-astf-ethip4tcp-4096h-pps.py')
| -rw-r--r-- | GPL/traffic_profiles/trex/trex-astf-ethip4tcp-4096h-pps.py | 66 |
1 files changed, 38 insertions, 28 deletions
diff --git a/GPL/traffic_profiles/trex/trex-astf-ethip4tcp-4096h-pps.py b/GPL/traffic_profiles/trex/trex-astf-ethip4tcp-4096h-pps.py index 6999dee6f9..0108edbcd5 100644 --- a/GPL/traffic_profiles/trex/trex-astf-ethip4tcp-4096h-pps.py +++ b/GPL/traffic_profiles/trex/trex-astf-ethip4tcp-4096h-pps.py @@ -1,4 +1,4 @@ -# Copyright (c) 2021 Cisco and/or its affiliates. +# Copyright (c) 2022 Cisco and/or its affiliates. # # SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later # @@ -47,22 +47,6 @@ from profile_trex_astf_base_class import TrafficProfileBaseClass class TrafficProfile(TrafficProfileBaseClass): """Traffic profile.""" - def __init__(self): - """Initialization and setting of profile parameters.""" - - super(TrafficProfileBaseClass, self).__init__() - - # IPs used in packet headers. - self.p1_src_start_ip = u"192.168.0.0" - self.p1_src_end_ip = u"192.168.15.255" - self.p1_dst_start_ip = u"20.0.0.0" - self.p1_dst_end_ip = u"20.0.15.255" - - # Headers length; not used in this profile, just for the record of - # header length for TCP packet with 0B payload - self.headers_size = 58 # 14B l2 + 20B ipv4 + 24B tcp incl. 4B options - self.data_size = 11111 - def define_profile(self): """Define profile to be used by advanced stateful traffic generator. @@ -73,31 +57,44 @@ class TrafficProfile(TrafficProfileBaseClass): :returns: IP generator and profile templates for ASTFProfile(). :rtype: tuple """ + # IPs used in packet headers. + p1_src_start_ip = u"192.168.0.0" + p1_src_end_ip = u"192.168.15.255" + p1_dst_start_ip = u"20.0.0.0" + p1_dst_end_ip = u"20.0.15.255" + + # Headers length, not sure why TRex needs 32B for segment header. + real_headers_size = 70 # 18B L2 + 20B IPv4 + 32B TCP. + trex_headers_size = real_headers_size - 12 # As if TCP header is 20B. + trex_mss = self.framesize - trex_headers_size + real_mss = trex_mss - 12 # TRex honors segment header+data limit. + data_size = self.n_data_frames * real_mss + # client commands prog_c = ASTFProgram() prog_c.connect() - prog_c.send(u"1" * self.data_size) - prog_c.recv(self.data_size) + prog_c.send(u"1" * data_size) + prog_c.recv(data_size) # server commands prog_s = ASTFProgram() prog_s.accept() - prog_c.recv(self.data_size) - prog_c.send(u"1" * self.data_size) + prog_s.recv(data_size) + prog_s.send(u"1" * data_size) # ip generators ip_gen_c = ASTFIPGenDist( - ip_range=[self.p1_src_start_ip, self.p1_src_end_ip], - distribution=u"seq" + ip_range=[p1_src_start_ip, p1_src_end_ip], + distribution=u"seq", ) ip_gen_s = ASTFIPGenDist( - ip_range=[self.p1_dst_start_ip, self.p1_dst_end_ip], - distribution=u"seq" + ip_range=[p1_dst_start_ip, p1_dst_end_ip], + distribution=u"seq", ) ip_gen = ASTFIPGen( glob=ASTFIPGenGlobal(ip_offset=u"0.0.0.1"), dist_client=ip_gen_c, - dist_server=ip_gen_s + dist_server=ip_gen_s, ) # server association @@ -108,12 +105,25 @@ class TrafficProfile(TrafficProfileBaseClass): program=prog_c, ip_gen=ip_gen, limit=258048, # TODO: set via input parameter - port=8080 + port=8080, ) temp_s = ASTFTCPServerTemplate(program=prog_s, assoc=s_assoc) template = ASTFTemplate(client_template=temp_c, server_template=temp_s) - return ip_gen, template, None + globinfo = ASTFGlobalInfo() + # Ensure correct data frame size. + globinfo.tcp.mss = trex_mss + # Ensure the whole transaction is a single burst (per direction). + globinfo.tcp.initwnd = self.n_data_frames + # Ensure buffers are large enough so starting window works. + globinfo.tcp.txbufsize = data_size + globinfo.tcp.rxbufsize = data_size + kwargs = dict( + default_c_glob_info=globinfo, + default_s_glob_info=globinfo, + ) + + return ip_gen, template, kwargs def register(): |