Feat: Lab1 done

.gitmodules

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+[submodule "docs/template"]
+	path = docs/template
+	url = ../typst-template

docs/main.typ

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+#import "template/module.typ": *
+
+#show: default.with(
+  title: "SDN - Lab 1",
+  authors: ((
+    name: "Yi-Ting Shih (111550013)",
+    affiliation: "National Yang Ming Chaio Tung University",
+    email: "ytshih@cs.nycu.edu.tw",
+  ),),
+)
+
+= Part 1: Answer Questions
+
+1. When ONOS activate "org.onosproject.openflow," what APPs does it activate?
+
+It activates:
+- org.onosproject.openflow
+- org.onosproject.hostprovider
+- org.onosproject.lldpprovider
+- org.onosproject.openflow-base
+- org.onosproject.optical-model
+
+2. After we activate ONOS and run P.17 Mininet command, will H1 ping H2 successfully? Why or why not?
+
+No, S1 and S2 will not forward packets unless `org.onosproject.fwd` is activated.
+
+3. Which TCP port does the controller listen to the OpenFlow connection request from the switch? (Take screenshot and explain your answer.)
+
+> netstat before activating `org.onosproject.openflow-base`
+#image("part1-1.png", width: 350pt)
+
+> netstat after activating `org.onosproject.openflow-base`
+#image("part1-2.png", width: 350pt)
+
+The ports that appeared only when openflow-base were enabled are:
+- tcpv6 `:::6633`
+- tcpv6 `:::6653`
+
+4. In question 3, which APP enables the controller to listen on the TCP port?
+
+`org.onosproject.openflow-base`
+
+= Part 2: Create a custom Topology
+
+> Run your Python script and use command "pingall"
+#image("part2-1.png", width: 350pt)
+
+> Then take a screenshot of topology on GUI
+#image("part2-2.png", width: 350pt)
+
+= Part 3: Statically assign Hosts IP Address in Mininet
+
+> command "dump"
+#image("part3-1.png", width: 350pt)
+
+> "ifconfig" on host h1
+#image("part3-2.png", width: 350pt)
+
+> "ifconfig" on host h2
+#image("part3-3.png", width: 350pt)
+
+> "ifconfig" on host h3
+#image("part3-4.png", width: 350pt)
+
+> "ifconfig" on host h4
+#image("part3-5.png", width: 350pt)
+
+> "ifconfig" on host h5
+#image("part3-6.png", width: 350pt)

lab1_111550013/lab1_part2_111550013.py

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+from mininet.topo import Topo
+
+class Lab1_Topo_111550013(Topo):
+    def __init__(self):
+        Topo.__init__(self)
+
+        h1 = self.addHost('h1')
+        h2 = self.addHost('h2')
+        h3 = self.addHost('h3')
+        h4 = self.addHost('h4')
+        h5 = self.addHost('h5')
+
+        s1 = self.addSwitch('s1')
+        s2 = self.addSwitch('s2')
+        s3 = self.addSwitch('s3')
+        s4 = self.addSwitch('s4')
+
+        self.addLink(h1, s1)
+        self.addLink(h2, s2)
+        self.addLink(h3, s3)
+        self.addLink(h4, s4)
+        self.addLink(h5, s4)
+
+        self.addLink(s1, s2)
+        self.addLink(s2, s3)
+        self.addLink(s2, s4)
+
+topos = {'topo_part2_111550013': Lab1_Topo_111550013}

lab1_111550013/lab1_part3_111550013.py

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+from mininet.topo import Topo
+
+class Lab1_Topo_111550013(Topo):
+    def __init__(self):
+        Topo.__init__(self)
+
+        h1 = self.addHost('h1', ip='192.168.0.1/27')
+        h2 = self.addHost('h2', ip='192.168.0.2/27')
+        h3 = self.addHost('h3', ip='192.168.0.3/27')
+        h4 = self.addHost('h4', ip='192.168.0.4/27')
+        h5 = self.addHost('h5', ip='192.168.0.5/27')
+
+        s1 = self.addSwitch('s1')
+        s2 = self.addSwitch('s2')
+        s3 = self.addSwitch('s3')
+        s4 = self.addSwitch('s4')
+
+        self.addLink(h1, s1)
+        self.addLink(h2, s2)
+        self.addLink(h3, s3)
+        self.addLink(h4, s4)
+        self.addLink(h5, s4)
+
+        self.addLink(s1, s2)
+        self.addLink(s2, s3)
+        self.addLink(s2, s4)
+
+topos = {'topo_part3_111550013': Lab1_Topo_111550013}