178 lines
8.6 KiB
Python
178 lines
8.6 KiB
Python
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from core.topo import Topo, TopoConfig, TopoParameter
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import logging
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class MultiInterfaceMultiClientTopo(Topo):
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NAME = "MultiIfMultiClient"
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def __init__(self, topo_builder, parameterFile):
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logging.info("Initializing MultiInterfaceTopo...")
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super(MultiInterfaceMultiClientTopo, self).__init__(topo_builder, parameterFile)
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self.router = self.add_router()
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self.c2r_client_switches = []
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self.c2r_router_switches = []
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# First add the base client and server
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self.client = self.add_client()
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self.server = self.add_server()
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# For each client-router, add a client, a bottleneck link, and a server
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for l in self.get_client_to_router_links():
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client = self.add_client()
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server = self.add_server()
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self.c2r_client_switches.append(self.add_c2r_client_side_switch(l))
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self.add_link(self.client, self.c2r_client_switches[-1])
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self.add_link(client, self.c2r_client_switches[-1])
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self.c2r_router_switches.append(self.add_c2r_router_side_switch(l))
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self.add_bottleneck_link(self.c2r_client_switches[-1], self.c2r_router_switches[-1], link_characteristics=l)
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self.add_link(self.c2r_router_switches[-1], self.router)
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# And connect the router to all servers
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for s in self.servers:
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self.add_link(self.router, s)
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def get_client_to_router_links(self):
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return [l for l in self.topo_parameter.link_characteristics if l.link_type == "c2r"]
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def add_c2r_client_side_switch(self, link):
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return self.add_switch("{}c2r{}".format(MultiInterfaceMultiClientTopo.SWITCH_NAME_PREFIX, 2 * link.id))
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def add_c2r_router_side_switch(self, link):
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return self.add_switch("{}c2r{}".format(MultiInterfaceMultiClientTopo.SWITCH_NAME_PREFIX, 2 * link.id + 1))
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def __str__(self):
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s = "Multiple interface topology with several clients and servers\n"
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i = 0
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nc = len(self.get_client_to_router_links())
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for i in range(0, nc):
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if i == nc // 2:
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s = s + "c- r--s\n"
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s = s + "c-\sw---bl---sw-/ \-s\n"
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else:
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s = s + "c-/sw---bl---sw-\ /-s\n"
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return s
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class MultiInterfaceMultiClientConfig(TopoConfig):
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NAME = "MultiIfMultiClient"
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def __init__(self, topo, param):
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super(MultiInterfaceMultiClientConfig, self).__init__(topo, param)
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def configure_routing(self):
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for i, l in enumerate(self.topo.c2r_client_switches):
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# Routing for the core client
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cmd = self.add_table_route_command(self.get_client_ip(i), i)
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self.topo.command_to(self.client, cmd)
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cmd = self.add_link_scope_route_command(
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self.get_client_subnet(i),
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self.get_client_interface(0, i), i)
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self.topo.command_to(self.client, cmd)
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cmd = self.add_table_default_route_command(self.get_router_ip_to_client_switch(i),
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i)
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self.topo.command_to(self.client, cmd)
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# Routing for the congestion client
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cmd = self.add_global_default_route_command(self.get_router_ip_to_client_switch(i),
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self.get_client_interface(i+1, 0))
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self.topo.command_to(self.clients[i+1], cmd)
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cmd = self.add_global_default_route_command(self.get_router_ip_to_client_switch(0),
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self.get_client_interface(0, 0))
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self.topo.command_to(self.client, cmd)
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for i, s in enumerate(self.topo.servers):
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cmd = self.add_simple_default_route_command(self.get_router_ip_to_server_switch(i))
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self.topo.command_to(s, cmd)
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def configure_interfaces(self):
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logging.info("Configure interfaces using MultiInterfaceMultiClientConfig...")
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super(MultiInterfaceMultiClientConfig, self).configure_interfaces()
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self.clients = [self.topo.get_client(i) for i in range(0, self.topo.client_count())]
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self.servers = [self.topo.get_server(i) for i in range(0, self.topo.server_count())]
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self.client = self.clients[0]
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self.server = self.servers[0]
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self.router = self.topo.get_router(0)
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netmask = "255.255.255.0"
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for i, l in enumerate(self.topo.c2r_client_switches):
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# Core client
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cmd = self.interface_up_command(self.get_client_interface(0, i), self.get_client_ip(i), netmask)
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self.topo.command_to(self.client, cmd)
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client_interface_mac = self.client.intf(self.get_client_interface(0, i)).MAC()
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self.topo.command_to(self.router, "arp -s {} {}".format(self.get_client_ip(i), client_interface_mac))
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if self.topo.get_client_to_router_links()[i].backup:
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cmd = self.interface_backup_command(self.get_client_interface(0, i))
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self.topo.command_to(self.client, cmd)
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# Congestion client
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cmd = self.interface_up_command(self.get_client_interface(i + 1, 0), self.get_client_ip(i, congestion_client=True), netmask)
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self.topo.command_to(self.clients[i+1], cmd)
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client_interface_mac = self.clients[i+1].intf(self.get_client_interface(i + 1, 0)).MAC()
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self.topo.command_to(self.router, "arp -s {} {}".format(self.get_client_ip(i, congestion_client=True), client_interface_mac))
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for i, l in enumerate(self.topo.c2r_router_switches):
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cmd = self.interface_up_command(self.get_router_interface_to_client_switch(i),
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self.get_router_ip_to_client_switch(i), netmask)
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self.topo.command_to(self.router, cmd)
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router_interface_mac = self.router.intf(self.get_router_interface_to_client_switch(i)).MAC()
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# Core client
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self.topo.command_to(self.client, "arp -s {} {}".format(
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self.get_router_ip_to_client_switch(i), router_interface_mac))
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# Congestion client
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self.topo.command_to(self.clients[i+1], "arp -s {} {}".format(
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self.get_router_ip_to_client_switch(i), router_interface_mac))
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for i, s in enumerate(self.servers):
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cmd = self.interface_up_command(self.get_router_interface_to_server_switch(i),
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self.get_router_ip_to_server_switch(i), netmask)
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self.topo.command_to(self.router, cmd)
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router_interface_mac = self.router.intf(self.get_router_interface_to_server_switch(i)).MAC()
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self.topo.command_to(s, "arp -s {} {}".format(
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self.get_router_ip_to_server_switch(i), router_interface_mac))
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cmd = self.interface_up_command(self.get_server_interface(i, 0), self.get_server_ip(interface_index=i), netmask)
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self.topo.command_to(s, cmd)
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server_interface_mac = s.intf(self.get_server_interface(i, 0)).MAC()
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self.topo.command_to(self.router, "arp -s {} {}".format(
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self.get_server_ip(interface_index=i), server_interface_mac))
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def get_client_ip(self, interface_index, congestion_client=False):
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return "{}{}.{}".format(self.param.get(TopoParameter.LEFT_SUBNET), interface_index, "10" if congestion_client else "1")
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def get_client_subnet(self, interface_index):
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return "{}{}.0/24".format(self.param.get(TopoParameter.LEFT_SUBNET), interface_index)
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def get_router_ip_to_client_switch(self, switch_index):
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return "{}{}.2".format(self.param.get(TopoParameter.LEFT_SUBNET), switch_index)
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def get_router_ip_to_server_switch(self, switch_index):
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return "{}{}.2".format(self.param.get(TopoParameter.RIGHT_SUBNET), switch_index)
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def get_server_ip(self, interface_index=0):
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return "{}{}.1".format(self.param.get(TopoParameter.RIGHT_SUBNET), interface_index)
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def get_server_subnet(self, interface_index):
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return "{}{}.0/24".format(self.param.get(TopoParameter.RIGHT_SUBNET), interface_index)
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def client_interface_count(self):
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return max(len(self.topo.c2r_client_switches), 1)
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def server_interface_count(self):
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return max(len(self.servers), 1)
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def get_router_interface_to_server_switch(self, switch_index):
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return self.get_router_interface_to_client_switch(len(self.topo.c2r_router_switches) + switch_index)
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def get_client_interface(self, client_index, interface_index):
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return "{}-eth{}".format(self.topo.get_client_name(client_index), interface_index)
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def get_router_interface_to_client_switch(self, interface_index):
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return "{}-eth{}".format(self.topo.get_router_name(0), interface_index)
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def get_server_interface(self, server_index, interface_index):
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return "{}-eth{}".format(self.topo.get_server_name(server_index), interface_index)
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