203 lines
9.3 KiB
Python
203 lines
9.3 KiB
Python
from core.topo import Topo, TopoConfig, TopoParameter
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import logging
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class MultiInterfaceTopo(Topo):
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NAME = "MultiIf"
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def __init__(self, topo_builder, parameterFile):
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logging.info("Initializing MultiInterfaceTopo...")
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super(MultiInterfaceTopo, self).__init__(topo_builder, parameterFile)
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self.client = self.add_client()
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self.server = self.add_server()
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self.router = self.add_router()
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self.c2r_links = []
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self.r2s_links = []
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# Add client - router links
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for l in self.get_client_to_router_links():
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self.c2r_links.append(self.add_bottleneck_link(self.client, self.router, link_characteristics=l))
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# Special case: if there is no specified link between router and server, directly connect them!
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if len(self.get_router_to_server_links()) > 0:
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for l in self.get_router_to_server_links():
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self.r2s_links.append(self.add_bottleneck_link(self.router, self.server, link_characteristics=l))
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else:
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self.add_link(self.router, self.server)
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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 get_router_to_server_links(self):
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return [l for l in self.topo_parameter.link_characteristics if l.link_type == "r2s"]
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def __str__(self):
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s = "Simple multiple interface topology \n"
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i = 0
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nc = len(self.get_client_to_router_links())
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ns = len(self.get_router_to_server_links())
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m = max(nc, ns)
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skipped = 0
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for i in range(0, m):
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if i == m // 2:
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if m % 2 == 0:
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s = s + "c r s\n"
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s = s + " \-sw---bl---sw-/ \-sw---bl---sw-/\n"
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else:
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s = s + "c--sw---bl---sw--r--sw---bl---sw--s\n"
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else:
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if i < m // 2:
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if (nc == m and ns + skipped == m) or (ns == m and nc + skipped == m):
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s = s + " /-sw---bl---sw-\ /-sw---bl---sw-\ \n"
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elif nc == m:
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s = s + " /-sw---bl---sw-\ \n"
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skipped += 1
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else:
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s = s + " /-sw---bl---sw-\ \n"
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skipped += 1
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else:
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if (nc == m and ns + skipped == m) or (ns == m and nc + skipped == m):
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s = s + " \-sw---bl---sw-/ \-sw---bl---sw-/ \n"
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elif nc == m:
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s = s + " \-sw---bl---sw-/ \n"
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skipped += 1
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else:
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s = s + " \-sw---bl---sw-/ \n"
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skipped += 1
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return s
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class MultiInterfaceConfig(TopoConfig):
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NAME = "MultiIf"
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def __init__(self, topo, param):
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super(MultiInterfaceConfig, self).__init__(topo, param)
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def configure_routing(self):
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for i, _ in enumerate(self.topo.c2r_links):
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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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for i, _ in enumerate(self.topo.r2s_links):
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cmd = self.add_table_route_command(self.get_server_ip(i), i)
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self.topo.command_to(self.server, cmd)
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cmd = self.add_link_scope_route_command(
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self.get_server_subnet(i),
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self.get_server_interface(0, i), i)
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self.topo.command_to(self.server, cmd)
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cmd = self.add_table_default_route_command(self.get_router_ip_to_server_switch(i),
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i)
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self.topo.command_to(self.server, 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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cmd = self.add_simple_default_route_command(self.get_router_ip_to_server_switch(0))
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self.topo.command_to(self.server, cmd)
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def configure_interfaces(self):
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logging.info("Configure interfaces using MultiInterfaceConfig...")
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super(MultiInterfaceConfig, self).configure_interfaces()
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self.client = self.topo.get_client(0)
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self.server = self.topo.get_server(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, _ in enumerate(self.topo.c2r_links):
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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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for i, _ in enumerate(self.topo.c2r_links):
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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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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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if len(self.topo.r2s_links) == 0:
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# Case no server param is specified
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cmd = self.interface_up_command(self.get_router_interface_to_server_switch(0),
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self.get_router_ip_to_server_switch(0), 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(0)).MAC()
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self.topo.command_to(self.server, "arp -s {} {}".format(
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self.get_router_ip_to_server_switch(0), router_interface_mac))
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cmd = self.interface_up_command(self.get_server_interface(0, 0), self.get_server_ip(0), netmask)
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self.topo.command_to(self.server, cmd)
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server_interface_mac = self.server.intf(self.get_server_interface(0, 0)).MAC()
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self.topo.command_to(self.router, "arp -s {} {}".format(
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self.get_server_ip(0), server_interface_mac))
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for i, _ in enumerate(self.topo.r2s_links):
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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(self.server, "arp -s {} {}".format(
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self.get_router_ip_to_server_switch(i), router_interface_mac))
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for i, _ in enumerate(self.topo.r2s_links):
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cmd = self.interface_up_command(self.get_server_interface(0, i), self.get_server_ip(i), netmask)
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self.topo.command_to(self.server, cmd)
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server_interface_mac = self.server.intf(self.get_server_interface(0, i)).MAC()
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self.topo.command_to(self.router, "arp -s {} {}".format(
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self.get_server_ip(i), server_interface_mac))
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def get_client_ip(self, interface_index):
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return "{}{}.1".format(self.param.get(TopoParameter.LEFT_SUBNET), interface_index)
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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_links), 1)
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def server_interface_count(self):
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return max(len(self.topo.r2s_links), 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_links) + 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) |