graph "2x2" {
	layout="neato";
	overlap="false";
	esep="+20";
	size=10

        node [shape=record, fontname="DejaVu Sans Mono, Book"];
	edge [color="cornflowerblue", penwidth="2", fontname="DejaVu Serif, Book"];

	PC [
	    label="PC | { <mgmt1> mgmt1 | <data> data | <mgmt2> mgmt2 | <mgmt3> mgmt3 }",
	    pos="20,30!",
	    requires="controller",
	];

        R1 [
	    label="{ <mgmt> mgmt | <data> data | <link> link} | R1 \n 192.168.100.1/32 \n(lo)",
	    pos="160,60!",

	    requires="infix",
	];
	R2 [
	    label="{ <link> link | <mgmt> mgmt | <data> data  } | R2 \n 192.168.200.1/32 \n(lo)",
	    pos="160,30!",

	    requires="infix",
	];
	HOST [
	    label="{ <link> link | <mgmt> mgmt } | HOST \n end-device",
	    pos="153,0!",

	    requires="infix",
	];

	PC:mgmt1 -- R1:mgmt [requires="mgmt", color="lightgray"]
	PC:mgmt2 -- R2:mgmt [requires="mgmt", color="lightgray"]
	PC:mgmt3 -- HOST:mgmt [requires="mgmt", color="lightgray"]
	PC:data -- R1:data  [color="black", headlabel="192.168.10.1/24", taillabel="192.168.10.2/24", labeldistance=6, fontcolor="black"]
	R1:link -- R2:link  [headlabel="192.168.50.2/24", taillabel="192.168.50.1/24", labeldistance=1, fontcolor="black", color="black"]
	R2:data -- HOST:link  [headlabel="192.168.60.2/24", taillabel="192.168.60.1/24", labeldistance=1, fontcolor="black", color="black"]
}