# Copyright (c) 2023 Cisco and/or its affiliates. # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at: # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. """IP Topology Library.""" from robot.libraries.BuiltIn import BuiltIn from resources.libraries.python.IPUtil import IPUtil class IPTopology: """IP Topology Library.""" @staticmethod def initialize_ipv4_forwarding(count=1, parallel_links=1): """ Custom setup of IPv4 forwarding with scalability of IP routes on all DUT nodes in 2-node / 3-node circular topology. :param count: Number of routes to configure. :param parallel_links: Number of parallel links to configure. :type count: int :type parallel_links: int """ topology = BuiltIn().get_variable_value("&{topology_info}") dut = topology["duts"][-1] ifl = BuiltIn().get_variable_value("${int}") for l, i in zip(range(parallel_links), range(1, parallel_links*2, 2)): dut1_int1 = BuiltIn().get_variable_value(f"${{DUT1_{ifl}{i}}}[0]") dut1_int2 = BuiltIn().get_variable_value(f"${{DUT1_{ifl}{i+1}}}[0]") dut_int1 = BuiltIn().get_variable_value(f"${{{dut}_{ifl}{i}}}[0]") dut_int2 = BuiltIn().get_variable_value(f"${{{dut}_{ifl}{i+1}}}[0]") IPUtil.vpp_add_ip_neighbor( topology["DUT1"], dut1_int1, f"1.{l}.1.1", topology[f"TG_pf{i}_mac"][0] ) if dut == "DUT2": dut_mac1 = BuiltIn().get_variable_value( f"${{{dut}_{ifl}{i}_mac}}[0]" ) IPUtil.vpp_add_ip_neighbor( topology["DUT1"], dut1_int2, f"3.{l}.3.2", dut_mac1 ) dut_mac2 = BuiltIn().get_variable_value( f"${{DUT1_{ifl}{i+1}_mac}}[0]" ) IPUtil.vpp_add_ip_neighbor( topology["DUT2"], dut_int1, f"3.{l}.3.1", dut_mac2 ) IPUtil.vpp_add_ip_neighbor( topology[dut], dut_int2, f"2.{l}.2.1", topology[f"TG_pf{i}_mac"][0] ) IPUtil.vpp_interface_set_ip_address( topology["DUT1"], dut1_int1, f"1.{l}.1.2", 30 ) if dut == "DUT2": IPUtil.vpp_interface_set_ip_address( topology["DUT1"], dut1_int2, f"3.{l}.3.1", 30 ) IPUtil.vpp_interface_set_ip_address( topology["DUT2"], dut_int1, f"3.{l}.3.2", 30 ) IPUtil.vpp_interface_set_ip_address( topology[dut], dut_int2, f"2.{l}.2.2", 30 ) IPUtil.vpp_route_add( topology["DUT1"], f"{i}0.0.0.0", 32, gateway=f"1.{l}.1.1", interface=dut1_int1, count=count ) if dut == "DUT2": IPUtil.vpp_route_add( topology["DUT1"], f"{i+1}0.0.0.0", 32, gateway=f"3.{l}.3.2", interface=dut1_int2, count=count ) IPUtil.vpp_route_add( topology["DUT2"], f"{i}0.0.0.0", 32, gateway=f"3.{l}.3.1", interface=dut_int1, count=count ) IPUtil.vpp_route_add( topology[dut], f"{i+1}0.0.0.0", 32, gateway=f"2.{l}.2.1", interface=dut_int2, count=count )