Routing Omnet++OSPF路由表度量
问题1:我在Omnet++中实现了ospf协议。根据拓扑结构,r1可以通过两种不同的方式到达r3。我已经将上层路径度量设置为1,下层路径设置为10。但是,根据OSPF协议,它不应该选择较低的路径,而是始终选择较低的路径,然后返回较高的路径。从路由表中可以看到,度量值存在问题 问题2:我需要在控制台上查看路由表。我使用printRoutingTable方法来打印它,但它不起作用 问题3:如何查看linkstate数据库表以了解整个拓扑 在这里你可以看到代码 ospfRouting.ned IP4RoutingTable.cc 对问题1的回答。 RASConfig.xml不符合OSPF.xsd xml架构的要求: 键序列0.0.0.0在区域元素中存在多次,仅允许一个实例 它应该是接口输出成本,而不是接口输出成本 接口输出成本必须小于1000 对问题2的回答。必须为路由表对象的实例调用printRoutingTable方法。您可能已经准备了自己的名为IP4RoutingTable的简单模块,但StandardHost和OSPFRouter都不包含该模块。 要打印路由表,只需在omnetpp.ini中添加以下行:Routing Omnet++OSPF路由表度量,routing,network-protocols,omnet++,inet,ospf,Routing,Network Protocols,Omnet++,Inet,Ospf,问题1:我在Omnet++中实现了ospf协议。根据拓扑结构,r1可以通过两种不同的方式到达r3。我已经将上层路径度量设置为1,下层路径设置为10。但是,根据OSPF协议,它不应该选择较低的路径,而是始终选择较低的路径,然后返回较高的路径。从路由表中可以看到,度量值存在问题 问题2:我需要在控制台上查看路由表。我使用printRoutingTable方法来打印它,但它不起作用 问题3:如何查看linkstate数据库表以了解整个拓扑 在这里你可以看到代码 ospfRouting.ned IP4R
你能显示你的模拟的omnetpp.ini吗?我添加了ini文件@JerzyD。当我添加这一行时,在控制台上运行模拟之前会出现路由表。但在运行项目时,该表不会显示。没错,路由表仅在初始化期间打印。但是,您可以通过单击元素内部,然后单击ospf模块和routingTable来检查任何主机/路由器的当前路由表。当我停止模拟时,我是否有机会看到添加了控制台学习的远程网络的当前路由表@JerzyD@melek_3:是的,路由器内的ospf模块包含当前路由表。
package inet.examples.ospfRouting;
import inet.networklayer.configurator.ipv4.IPv4NetworkConfigurator;
import inet.networklayer.ipv4.IPv4RoutingTable;
import inet.networklayer.ted.LinkStateRouting;
import inet.node.ethernet.EtherSwitch;
import inet.node.inet.StandardHost;
import inet.node.ospfv2.OSPFRouter;
import inet.common.misc.ThruputMeteringChannel;
network OspfRouting
{
@display("bgb=831,570");
types:
channel C extends ThruputMeteringChannel
{
parameters:
delay = 0.1us;
datarate = 100Mbps;
thruputDisplayFormat = "#N";
}
submodules:
R1: OSPFRouter {
// @networkNode;
@display("p=171,213");
gates:
ethg[3];
}
R2: OSPFRouter {
// @networkNode;
@display("p=344,105");
gates:
ethg[2];
}
R3: OSPFRouter {
//@networkNode;
@display("p=510,213");
gates:
ethg[3];
}
R4: OSPFRouter {
// @networkNode;
@display("p=344,327");
gates:
ethg[2];
}
SW1: EtherSwitch {
// @networkNode;
@display("p=57,212");
}
SW2: EtherSwitch {
// @networkNode;
@display("p=678,212");
}
H1: StandardHost {
// @networkNode;
@display("p=57,331");
gates:
ethg[1];
}
H2: StandardHost {
// @networkNode;
@display("p=678,327");
gates:
ethg[1];
}
configurator: IPv4NetworkConfigurator {
// @networkNode;
@display("p=774.89996,143.5");
}
connections:
{
R1.ethg[0] <--> C <--> R4.ethg[0];
R1.ethg[1] <--> C <--> R2.ethg[1];
R2.ethg[0] <--> C <--> R3.ethg[0];
R3.ethg[1] <--> C <--> R4.ethg[1];
R1.ethg[2] <--> C <--> SW1.ethg++;
R3.ethg[2] <--> C <--> SW2.ethg++;
SW1.ethg++ <--> C <--> H1.ethg[0];
SW2.ethg++ <--> C <--> H2.ethg[0];
}
}
<?xml version = "1.0"?>
<scenario>
<interface hosts = 'R1' names = 'eth0' address = '30.0.0.1' netmask = '255.0.0.0' metric = '1' />
<interface hosts = 'R1' names = 'eth1' address = '10.0.0.1' netmask = '255.0.0.0' metric = '1' />
<interface hosts = 'R1' names = 'eth2' address = '50.0.0.1' netmask = '255.0.0.0' metric = '1' />
<interface hosts = 'R2' names = 'eth0' address = '20.0.0.2' netmask = '255.0.0.0' metric = '1' />
<interface hosts = 'R2' names = 'eth1' address = '10.0.0.2' netmask = '255.0.0.0' metric = '1' />
<interface hosts = 'R3' names = 'eth0' address = '20.0.0.3' netmask = '255.0.0.0' metric = '1' />
<interface hosts = 'R3' names = 'eth1' address = '40.0.0.3' netmask = '255.0.0.0' metric = '1' />
<interface hosts = 'R3' names = 'eth2' address = '60.0.0.3' netmask = '255.0.0.0' metric = '1' />
<interface hosts = 'R4' names = 'eth0' address = '30.0.0.4' netmask = '255.0.0.0' metric = '1' />
<interface hosts = 'R4' names = 'eth1' address = '40.0.0.4' netmask = '255.0.0.0' metric = '1' />
<interface hosts = 'H1' names = 'eth0' address ='50.0.0.10' netmask = '255.0.0.0' metric = '1' />
<interface hosts = 'H2' names = 'eth0' address ='60.0.0.10' netmask = '255.0.0.0' metric = '1' />
<route hosts = 'H1' destination = '*' netmask = '*' interface = 'eth0'/>
<route hosts = 'H2' destination = '*' netmask = '*' interface = 'eth0'/>
</scenario>
<?xml version="1.0"?>
<OSPFASConfig xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="OSPF.xsd">
<Area id = "0.0.0.0">
<AddressRange address = "10.0.0.0"
mask = "255.0.0.0"
status = "Advertise" />
</Area>
<Area id = "0.0.0.0">
<AddressRange address = "20.0.0.0"
mask = "255.0.0.0"
status = "Advertise" />
</Area>
<Area id = "0.0.0.0">
<AddressRange address = "30.0.0.0"
mask = "255.0.0.0"
status = "Advertise" />
</Area>
<Area id = "0.0.0.0">
<AddressRange address = "40.0.0.0"
mask = "255.0.0.0"
status = "Advertise" />
</Area>
<Area id = "0.0.0.1">
<AddressRange address = "50.0.0.0"
mask = "255.0.0.0"
status = "Advertise" />
</Area>
<Area id = "0.0.0.2">
<AddressRange address = "60.0.0.0"
mask = "255.0.0.0"
status = "Advertise" />
</Area>
<Router name = "R1" RFC1583Compatible = "true">
<BroadcastInterface
ifName= "eth2"
areaID= "0.0.0.1"
InterfaceOutputCost = "1"
/>
<PointToPointInterface
ifName="eth0"
areaID = "0.0.0.0"
InterfaceOutputCost = "1"
/>
<PointToPointInterface
ifName="eth1"
areaID = "0.0.0.0"
InterfaceOutputCost = "1000"
/>
</Router>
<Router name = "R2" RFC1583Compatible = "true">
<PointToPointInterface
ifName="eth0"
areaID = "0.0.0.0"
InterfaceOutputCost = "1"
/>
<PointToPointInterface
ifName="eth1"
areaID = "0.0.0.0"
InterfaceOutputCost = "1"
/>
</Router>
<Router name = "R3" RFC1583Compatible = "true">
<BroadcastInterface
ifName= "eth2"
areaID= "0.0.0.2"
InterfaceOutputCost = "1"
/>
<PointToPointInterface
ifName="eth0"
areaID = "0.0.0.0"
InterfaceOutputCost = "1"
/>
<PointToPointInterface
ifName="eth1"
areaID = "0.0.0.0"
InterfaceOutputCost = "1000"
/>
</Router>
<Router name = "R4" RFC1583Compatible = "true">
<PointToPointInterface
ifName="eth0"
areaID = "0.0.0.0"
InterfaceOutputCost = "1000"
/>
<PointToPointInterface
ifName="eth1"
areaID = "0.0.0.0"
InterfaceOutputCost = "1000"
/>
</Router>
</OSPFASConfig>
[General]
network = inet.examples.ospfRouting.OspfRouting
**.configurator.config = xmldoc("Rconfig.xml")
**.configurator.addStaticRoutes = false
**.configurator.addDefaultRoutes = false
**.ospf.ospfConfig = xmldoc("RASConfig.xml")
**.numPingApps = 1
**.H1.pingApp[0].destAddr = "H2"
**.pingApp[*].sendInterval = 1000ms
**.arp.cacheTimeout = 1s
#include <iostream>
#include <fstream>
#include <string>
#include <IPv4RoutingTable.h>
using namespace std;
class IP4RoutingTable : public cSimpleModule
{
public:
virtual void initialize();
};
Define_Module(IP4RoutingTable);
void IP4RoutingTable::initialize()
{
IPv4RoutingTable:: printRoutingTable () ;
}
**.configurator.dumpRoutes = true