Fixes for (i) increasing max # of ports per switch (ii) ARP discovery…

… on leaf switches in INT ref topology

docker/start.sh

@@ -10,10 +10,34 @@ ip tuntap add dev swp1 mode tap
 ip tuntap add dev swp2 mode tap
 ip tuntap add dev swp3 mode tap
 ip tuntap add dev swp4 mode tap
+ip tuntap add dev swp5 mode tap
+ip tuntap add dev swp6 mode tap
+ip tuntap add dev swp7 mode tap
+ip tuntap add dev swp8 mode tap
+ip tuntap add dev swp9 mode tap
+ip tuntap add dev swp10 mode tap
+ip tuntap add dev swp11 mode tap
+ip tuntap add dev swp12 mode tap
+ip tuntap add dev swp13 mode tap
+ip tuntap add dev swp14 mode tap
+ip tuntap add dev swp15 mode tap
+ip tuntap add dev swp16 mode tap
 ip link set swp1 up
 ip link set swp2 up
 ip link set swp3 up
 ip link set swp4 up
+ip link set swp5 up
+ip link set swp6 up
+ip link set swp7 up
+ip link set swp8 up
+ip link set swp9 up
+ip link set swp10 up
+ip link set swp11 up
+ip link set swp12 up
+ip link set swp13 up
+ip link set swp14 up
+ip link set swp15 up
+ip link set swp16 up
 
 if [ -x /configs/startup_config.sh ]
 then

mininet/int_cfg.py

@@ -201,7 +201,6 @@ def configHostRoutesAndArp(self):
         h = self.net.get(l.node2)
         port = sw.port_cfgs[l.port1]
         h.cmd("route add default gw %s" % port.ip)
-        h.cmd("arp -s %s %s" % (port.ip, port.mac))
 
   def configSwitches(self):
     for s in self.switch_cfgs.values():