Adding protocol MRP (IEC 62439-2)

.oppfeatures

@@ -848,6 +848,40 @@
         compileFlags = ""
         linkerFlags = ""
         />
+
+    <feature
+        id = "Mrp"
+        name = "MRP (Media Redundancy Protocol)"
+        description = "Implementation of the Media Redundancy Protocol on Ethernet networks."
+        initiallyEnabled = "true"
+        requires = ""
+        recommended = ""
+        labels = "protocols"
+        nedPackages = "
+                       inet.linklayer.mrp
+                       inet.node.mrp
+                      "
+        extraSourceFolders = ""
+        compileFlags = "-DINET_WITH_MRP"
+        linkerFlags = ""
+        />
+
+    <feature
+        id = "MrpExamples"
+        name = "MRP examples"
+        description = "Examples for MRP."
+        initiallyEnabled = "true"
+        requires = "Ethernet Mrp"
+        recommended = ""
+        labels = "protocols"
+        nedPackages = "
+                       inet.examples.mrp
+                      "
+        extraSourceFolders = ""
+        compileFlags = ""
+        linkerFlags = ""
+        />
+
     <feature
         id = "NetworkEmulationSupport"
         name = "Network emulation support"

examples/mrp/Events.xml

@@ -0,0 +1,11 @@
+<script>
+    <at t="1s">
+        <disconnect src-module="node2" src-gate="ethg[1]" />
+    </at>
+    <at t="2s">
+        <connect src-module="node2" src-gate="ethg[1]"
+                 dest-module="node1" dest-gate="ethg[0]" 
+                 channel-type="inet.node.ethernet.Eth100M">
+        </connect>
+    </at>
+</script>

examples/mrp/Events50.xml

@@ -0,0 +1,11 @@
+<script>
+    <at t="1s">
+        <disconnect src-module="node[12]" src-gate="ethg[0]" />
+    </at>
+    <at t="2s">
+        <connect src-module="node[12]" src-gate="ethg[0]"
+                 dest-module="node[13]" dest-gate="ethg[1]" 
+                 channel-type="inet.node.ethernet.Eth100M">
+        </connect>
+    </at>
+</script>

examples/mrp/EventsInter.xml

@@ -0,0 +1,17 @@
+<script>
+    <at t="750ms">
+        <disconnect src-module="node2" src-gate="ethg[1]" />
+    </at>
+    <at t="1250ms">
+        <connect src-module="node2" src-gate="ethg[1]"
+                 dest-module="node1" dest-gate="ethg[0]" 
+                 channel-type="inet.node.ethernet.Eth100M">
+        </connect>
+    </at>
+    <at t="1750ms">
+    	<disconnect src-gate="ethg[2]" src-module="node2"></disconnect></at>
+    <at t="2500ms">
+    	<connect channel-type="inet.node.ethernet.Eth100M" dest-gate="ethg[2]" dest-module="node6" src-gate="ethg[2]"
+    		src-module="node2">
+    	</connect></at>
+</script>

examples/mrp/MrpNetworks.ned

@@ -0,0 +1,156 @@
+// Copyright (C) 2024 Daniel Zeitler
+// SPDX-License-Identifier: LGPL-3.0-or-later
+
+package inet.examples.mrp;
+
+import inet.common.scenario.ScenarioManager;
+import inet.node.ethernet.Eth100M;
+import inet.node.ethernet.EthernetHost;
+import inet.node.mrp.MrpSwitch;
+import inet.visualizer.canvas.integrated.IntegratedCanvasVisualizer;
+
+
+network Mrp4
+{
+    @display("bgb=640,520");
+    submodules:
+        scenarioManager: ScenarioManager {
+            @display("p=80,80;is=s");
+        }
+        visualizer: IntegratedCanvasVisualizer {
+            @display("p=80,160;is=s");
+        }
+        node0: MrpSwitch {
+            @display("p=350,150");
+        }
+        node1: MrpSwitch {
+            @display("p=450,250");
+        }
+        node2: MrpSwitch {
+            @display("p=350,350");
+        }
+        node3: MrpSwitch {
+            @display("p=250,250");
+        }
+    connections:
+        node0.ethg[0] <--> Eth100M <--> node1.ethg[1];
+        node1.ethg[0] <--> Eth100M <--> node2.ethg[1];
+        node2.ethg[0] <--> Eth100M <--> node3.ethg[1];
+        node3.ethg[0] <--> Eth100M <--> node0.ethg[1];
+}
+
+network Mrp4withHosts extends Mrp4
+{
+    @display("bgb=720,520");
+    submodules:
+        host1: EthernetHost {
+            parameters:
+                csmacdSupport = false;
+                eth.duplexMode = true;
+                @display("p=350,50");
+        }
+        host2: EthernetHost {
+            parameters:
+                csmacdSupport = false;
+                eth.duplexMode = true;
+                @display("p=550,250");
+        }
+
+        host3: EthernetHost {
+            parameters:
+                csmacdSupport = false;
+                eth.duplexMode = true;
+                @display("p=350,450");
+        }
+        host4: EthernetHost {
+            parameters:
+                csmacdSupport = false;
+                eth.duplexMode = true;
+                @display("p=150,250");
+        }
+    connections:
+        node0.ethg[2] <--> Eth100M <--> host1.ethg;
+        node1.ethg[2] <--> Eth100M <--> host2.ethg;
+        node2.ethg[2] <--> Eth100M <--> host3.ethg;
+        node3.ethg[2] <--> Eth100M <--> host4.ethg;
+}
+
+network Mrp8 extends Mrp4
+{
+    @display("bgb=980,500");
+    submodules:
+        node4: MrpSwitch {
+            @display("p=700,150");
+        }
+        node5: MrpSwitch {
+            @display("p=800,250");
+        }
+        node6: MrpSwitch {
+            @display("p=700,350");
+        }
+        node7: MrpSwitch {
+            @display("p=600,250");
+        }
+        host1: EthernetHost {
+            parameters:
+                csmacdSupport = false;
+                eth.duplexMode = true;
+                @display("p=150,250");
+        }
+        host2: EthernetHost {
+            parameters:
+                csmacdSupport = false;
+                eth.duplexMode = true;
+                @display("p=450,400");
+        }
+        host3: EthernetHost {
+            parameters:
+                csmacdSupport = false;
+                eth.duplexMode = true;
+                @display("p=900,250");
+        }
+        host4: EthernetHost {
+            parameters:
+                csmacdSupport = false;
+                eth.duplexMode = true;
+                @display("p=600,400");
+        }
+    connections:
+        node4.ethg[0] <--> Eth100M <--> node5.ethg[1];
+        node5.ethg[0] <--> Eth100M <--> node6.ethg[1];
+        node6.ethg[0] <--> Eth100M <--> node7.ethg[1];
+        node7.ethg[0] <--> Eth100M <--> node4.ethg[1];
+        node0.ethg[2] <--> Eth100M <--> node4.ethg[2];
+        node2.ethg[2] <--> Eth100M <--> node6.ethg[2];
+        host1.ethg <--> Eth100M <--> node3.ethg[2];
+        host2.ethg <--> Eth100M <--> node1.ethg[2];
+        host3.ethg <--> Eth100M <--> node5.ethg[2];
+        host4.ethg <--> Eth100M <--> node7.ethg[2];
+}
+
+network MrpRing
+{
+    parameters:
+        int numNodes;
+    submodules:
+        scenarioManager: ScenarioManager {
+            @display("p=95,48;is=s");
+        }
+        visualizer: IntegratedCanvasVisualizer {
+            @display("p=95,100;is=s");
+        }
+        node[numNodes]: MrpSwitch {
+            gates:
+                ethg[3];
+        }
+        host[numNodes]: EthernetHost {
+            parameters:
+                csmacdSupport = false;
+                eth.duplexMode = true;
+        }
+    connections:
+        for i=0..numNodes-1 {
+            node[i].ethg[0] <--> Eth100M <--> node[(i+1) % numNodes].ethg[1];
+            host[i].ethg <--> Eth100M <--> node[i].ethg[2];
+        }
+}