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tests: add OSPFv3 module tests for multi-area IPv6 routing
OSPFv3 previously had no module-test coverage (only fingerprint and example tests). Add two end-to-end tests, modelled on the existing ospf_* OSPFv2 module tests, that verify OSPFv3 converges and installs correct IPv6 routes by exchanging UDP traffic between routers in different areas: - ospfv3_2_areas: Router1--Router2--Router3 in backbone area 0.0.0.0, Router3 is the ABR into area 0.0.0.1 (Router4, Router5). UDP between Router1 and Router4 succeeds only once the inter-area-prefix LSAs let each side install a route to the other area's prefixes. - ospfv3_broadcast_multiarea: five routers share one broadcast Ethernet segment in the backbone (DR election among five, each running the Database Exchange against the DR and BDR concurrently), and each is the ABR into its own stub area holding a leaf router. UDP between two leaf routers in different areas exercises multi-neighbor Loading-state convergence plus inter-area routing -- the multi-router, multi-area broadcast shape addressed by the OSPFv3 Database Exchange fixes. Both send 40 packets each way and assert all 40 are delivered and echoed back in both directions. They pass in release and debug builds.
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‎tests/module/ospfv3_2_areas.test‎

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%description:
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Testing OSPFv3 (IPv6) routing across a shared broadcast segment and two areas.
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Router1, Router2 and Router3 share one broadcast Ethernet segment in backbone area
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0.0.0.0 (so a designated router is elected among three routers, and each router
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runs the full Database Exchange against two neighbors at once). Router3 is the area
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border router into area 0.0.0.1, where Router4 lives. UDP traffic is exchanged
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between Router1 (backbone) and Router4 (area 0.0.0.1); it only gets through once the
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adjacencies on the shared segment converge through the Loading state AND the ABR's
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inter-area-prefix LSAs let Router1 install a route to the area 0.0.0.1 prefixes (and
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vice versa). This exercises DR election, multi-neighbor Database Exchange
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convergence, intra-area SPF and inter-area route computation.
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%#--------------------------------------------------------------------------------------------------------------
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%file: test.ned
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import inet.common.misc.ThruputMeteringChannel;
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import inet.networklayer.configurator.ipv4.Ipv4NetworkConfigurator;
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import inet.node.ethernet.EthernetSwitch;
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import inet.node.ospfv3.Ospfv3Router;
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network Test1
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{
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types:
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channel C extends ThruputMeteringChannel
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{
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delay = 0.1us;
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datarate = 100Mbps;
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}
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submodules:
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configurator: Ipv4NetworkConfigurator {
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parameters:
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config = xml("<config>"+
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"<interface among='Router1 Router2 Router3' address='10.10.10.x' netmask='255.255.255.0' />"+
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"<interface among='Router3 Router4' address='10.10.20.x' netmask='255.255.255.0' />"+
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"</config>");
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addStaticRoutes = false;
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addDefaultRoutes = false;
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addSubnetRoutes = false;
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@display("p=50,50");
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}
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N1: EthernetSwitch {
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parameters:
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@display("p=200,180");
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gates:
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ethg[3];
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}
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Router1: Ospfv3Router {
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parameters:
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@display("p=90,90");
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gates:
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ethg[1];
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}
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Router2: Ospfv3Router {
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parameters:
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@display("p=200,90");
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gates:
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ethg[1];
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}
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Router3: Ospfv3Router {
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parameters:
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@display("p=320,180");
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gates:
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ethg[2];
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}
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Router4: Ospfv3Router {
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parameters:
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@display("p=440,180");
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gates:
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ethg[1];
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}
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connections:
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Router1.ethg[0] <--> C <--> N1.ethg[0];
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Router2.ethg[0] <--> C <--> N1.ethg[1];
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Router3.ethg[0] <--> C <--> N1.ethg[2];
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Router3.ethg[1] <--> C <--> Router4.ethg[0];
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}
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%#--------------------------------------------------------------------------------------------------------------
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%inifile: omnetpp.ini
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[General]
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description = "OSPFv3 broadcast segment and two areas"
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network = Test1
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ned-path = .;../../../../src;../../lib
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sim-time-limit = 120s
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cmdenv-express-mode = true
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output-scalar-file = "${resultdir}/${configname}-#${runnumber}.sca"
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record-vector-results = false
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**.cmdenv-log-level = "info"
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**.Router1.ospf.ospfv3Splitter.ospfv3RoutingConfig = xmldoc("config.xml", "Devices/Router[@id='Router1']/Routing6/OSPFv3")
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**.Router2.ospf.ospfv3Splitter.ospfv3RoutingConfig = xmldoc("config.xml", "Devices/Router[@id='Router2']/Routing6/OSPFv3")
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**.Router3.ospf.ospfv3Splitter.ospfv3RoutingConfig = xmldoc("config.xml", "Devices/Router[@id='Router3']/Routing6/OSPFv3")
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**.Router4.ospf.ospfv3Splitter.ospfv3RoutingConfig = xmldoc("config.xml", "Devices/Router[@id='Router4']/Routing6/OSPFv3")
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**.Router1.ospf.ospfv3Splitter.ospfv3IntConfig = xmldoc("config.xml", "Devices/Router[@id='Router1']/Interfaces")
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**.Router2.ospf.ospfv3Splitter.ospfv3IntConfig = xmldoc("config.xml", "Devices/Router[@id='Router2']/Interfaces")
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**.Router3.ospf.ospfv3Splitter.ospfv3IntConfig = xmldoc("config.xml", "Devices/Router[@id='Router3']/Interfaces")
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**.Router4.ospf.ospfv3Splitter.ospfv3IntConfig = xmldoc("config.xml", "Devices/Router[@id='Router4']/Interfaces")
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# UDP traffic between Router1 (backbone) and Router4 (area 0.0.0.1)
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**.Router1.hasUdp = true
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**.Router4.hasUdp = true
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**.Router1.numApps = 2
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**.Router4.numApps = 2
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**.app[0].typename = "UdpBasicApp"
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**.app[0].destPort = 1234
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**.app[0].messageLength = 32 bytes
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**.app[0].sendInterval = 1s
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**.app[0].startTime = 60s
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**.app[0].stopTime = this.startTime + 40s
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**.Router1.app[0].destAddresses = "2001:db8:c::2"
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**.Router4.app[0].destAddresses = "2001:db8:a::1"
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**.app[1].typename = "UdpEchoApp"
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**.app[1].localPort = 1234
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%#--------------------------------------------------------------------------------------------------------------
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%file: config.xml
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<Devices>
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<Router id="Router1">
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<Routing6><OSPFv3><Process id="100"><RouterID>10.10.10.1</RouterID></Process></OSPFv3></Routing6>
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<Interfaces>
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<Interface name="eth0">
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<Process id="100"><Instance AF="IPv6"><InterfaceType>Broadcast</InterfaceType><Area>0.0.0.0</Area></Instance></Process>
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<IPv6Address>fe80::a8bb:ccff:fe00:100/64</IPv6Address>
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<IPv6Address>2001:db8:a::1/64</IPv6Address>
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</Interface>
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</Interfaces>
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</Router>
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<Router id="Router2">
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<Routing6><OSPFv3><Process id="100"><RouterID>10.10.10.2</RouterID></Process></OSPFv3></Routing6>
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<Interfaces>
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<Interface name="eth0">
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<Process id="100"><Instance AF="IPv6"><InterfaceType>Broadcast</InterfaceType><Area>0.0.0.0</Area></Instance></Process>
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<IPv6Address>fe80::a8bb:ccff:fe00:200/64</IPv6Address>
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<IPv6Address>2001:db8:a::2/64</IPv6Address>
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</Interface>
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</Interfaces>
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</Router>
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<Router id="Router3">
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<Routing6><OSPFv3><Process id="100"><RouterID>10.10.10.3</RouterID></Process></OSPFv3></Routing6>
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<Interfaces>
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<Interface name="eth0">
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<Process id="100"><Instance AF="IPv6"><InterfaceType>Broadcast</InterfaceType><Area>0.0.0.0</Area></Instance></Process>
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<IPv6Address>fe80::a8bb:ccff:fe00:300/64</IPv6Address>
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<IPv6Address>2001:db8:a::3/64</IPv6Address>
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</Interface>
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<Interface name="eth1">
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<Process id="100"><Instance AF="IPv6"><InterfaceType>Broadcast</InterfaceType><Area>0.0.0.1</Area></Instance></Process>
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<IPv6Address>fe80::a8bb:ccff:fe00:310/64</IPv6Address>
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<IPv6Address>2001:db8:c::1/64</IPv6Address>
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</Interface>
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</Interfaces>
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</Router>
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<Router id="Router4">
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<Routing6><OSPFv3><Process id="100"><RouterID>10.10.10.4</RouterID></Process></OSPFv3></Routing6>
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<Interfaces>
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<Interface name="eth0">
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<Process id="100"><Instance AF="IPv6"><InterfaceType>Broadcast</InterfaceType><Area>0.0.0.1</Area></Instance></Process>
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<IPv6Address>fe80::a8bb:ccff:fe00:400/64</IPv6Address>
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<IPv6Address>2001:db8:c::2/64</IPv6Address>
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</Interface>
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</Interfaces>
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</Router>
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</Devices>
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%#--------------------------------------------------------------------------------------------------------------
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%contains: results/General-#0.sca
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scalar Test1.Router1.app[0] packetSent:count 40
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%contains: results/General-#0.sca
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scalar Test1.Router1.app[0] packetReceived:count 40
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%contains: results/General-#0.sca
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scalar Test1.Router4.app[0] packetSent:count 40
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%contains: results/General-#0.sca
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scalar Test1.Router4.app[0] packetReceived:count 40
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%#--------------------------------------------------------------------------------------------------------------
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%postrun-command: grep "undisposed object:" test.out > test_undisposed.out || true
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%not-contains: test_undisposed.out
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undisposed object: (

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