Step 6. OSPF DR/BDR election in a multi-access network (Ethernet)¶
Goals¶
[explanation]
Configuration¶
This step uses the following network:
network Network2
{
@display("bgb=1869.6599,1536.9");
submodules:
configurator: Ipv4NetworkConfigurator {
@display("p=186.12,53.579998");
}
visualizer: IntegratedCanvasVisualizer {
@display("p=186.12,250.98");
}
scenarioManager: ScenarioManager {
@display("p=186.12,451.19998");
}
host0: StandardHost {
@display("p=296.1,673.98");
}
host1: StandardHost {
@display("p=296.1,831.89996");
}
host2: StandardHost {
@display("p=296.1,992.63995");
}
R1: Router {
@display("p=744.48,831.89996");
}
R2: Router {
@display("p=1209.78,772.68");
}
host3: StandardHost {
@display("p=1765.32,611.94");
}
host4: StandardHost {
@display("p=1765.32,772.68");
}
host5: StandardHost {
@display("p=1765.32,933.42");
}
switch1: EtherSwitch {
@display("p=518.88,831.89996");
}
switch3: EtherSwitch {
@display("p=1514.34,769.86");
}
switch2: EtherSwitch {
@display("p=1001.1,798.06");
}
R3: Router {
@display("p=916.5,532.98");
}
R4: Router {
@display("p=1223.88,532.98");
}
R5: Router {
@display("p=786.77997,1051.86");
}
R6: Router {
@display("p=1159.02,1051.86");
}
host6: StandardHost {
@display("p=659.88,183.3");
}
host7: StandardHost {
@display("p=659.88,344.03998");
}
host8: StandardHost {
@display("p=659.88,507.59998");
}
switch4: EtherSwitch {
@display("p=882.66,344.03998");
}
host9: StandardHost {
@display("p=1446.6599,188.94");
}
host10: StandardHost {
@display("p=1446.6599,344.03998");
}
host11: StandardHost {
@display("p=1446.6599,510.41998");
}
switch5: EtherSwitch {
@display("p=1243.62,344.03998");
}
host12: StandardHost {
@display("p=521.7,1096.98");
}
host13: StandardHost {
@display("p=521.7,1257.72");
}
host14: StandardHost {
@display("p=521.7,1418.46");
}
switch6: EtherSwitch {
@display("p=744.48,1257.72");
}
host15: StandardHost {
@display("p=1393.08,1096.98");
}
host16: StandardHost {
@display("p=1393.08,1257.72");
}
host17: StandardHost {
@display("p=1393.08,1418.46");
}
switch7: EtherSwitch {
@display("p=1187.22,1257.72");
}
connections:
host2.ethg++ <--> Eth100M <--> switch1.ethg++;
host1.ethg++ <--> Eth100M <--> switch1.ethg++;
host0.ethg++ <--> Eth100M <--> switch1.ethg++;
switch1.ethg++ <--> Eth100M <--> R1.ethg++;
switch3.ethg++ <--> Eth100M <--> host3.ethg++;
switch3.ethg++ <--> Eth100M <--> host4.ethg++;
switch3.ethg++ <--> Eth100M <--> host5.ethg++;
R2.ethg++ <--> Eth100M <--> switch3.ethg++;
R1.ethg++ <--> Eth100M <--> switch2.ethg++;
R3.ethg++ <--> Eth100M <--> switch2.ethg++;
R4.ethg++ <--> Eth100M <--> switch2.ethg++;
R2.ethg++ <--> Eth100M <--> switch2.ethg++;
R6.ethg++ <--> Eth100M <--> switch2.ethg++;
R5.ethg++ <--> Eth100M <--> switch2.ethg++;
host7.ethg++ <--> Eth100M <--> switch4.ethg++;
host8.ethg++ <--> Eth100M <--> switch4.ethg++;
host6.ethg++ <--> Eth100M <--> switch4.ethg++;
host10.ethg++ <--> Eth100M <--> switch5.ethg++;
host11.ethg++ <--> Eth100M <--> switch5.ethg++;
host9.ethg++ <--> Eth100M <--> switch5.ethg++;
host13.ethg++ <--> Eth100M <--> switch6.ethg++;
host14.ethg++ <--> Eth100M <--> switch6.ethg++;
host12.ethg++ <--> Eth100M <--> switch6.ethg++;
host16.ethg++ <--> Eth100M <--> switch7.ethg++;
host17.ethg++ <--> Eth100M <--> switch7.ethg++;
host15.ethg++ <--> Eth100M <--> switch7.ethg++;
R5.ethg++ <--> Eth100M <--> switch6.ethg++;
R6.ethg++ <--> Eth100M <--> switch7.ethg++;
switch4.ethg++ <--> Eth100M <--> R3.ethg++;
switch5.ethg++ <--> Eth100M <--> R4.ethg++;
}
The configuration in omnetpp.ini is the following:
[Config Step6]
description = "OSPF DR/BDR election in a multi-access network (Ethernet)"
network = Network2
*.configurator.config = xml("<config> \
<interface hosts='**' address='10.x.x.x' netmask='255.255.255.x'/> \
<route hosts='host*' destination='*' netmask='0.0.0.0' interface='eth0' /> \
</config>")