graph "lag" {
    layout="neato";
    overlap="false";
    esep="+23";

    node [shape=record, fontsize=12, fontname="DejaVu Sans Mono, Book"];
    edge [color="cornflowerblue", penwidth="2", fontname="DejaVu Serif, Book"];

    host [
	  label="{{ <mgmt1> mgmt1 | <mon> mon | <lb1a> lb1a | <lb2a> lb2a | <lb2b> lb2b | <lb1b> lb1b | <mgmt2> mgmt2 } | host}",
	  pos="9,0!",
	  requires="controller",
	  ];

    dut1 [
	  label="{ dut1\l | { <mgmt> mgmt | <mon> mon | <link1> link1 | <link2> link2 } }",
	  pos="0,6!",
	  requires="infix",
	  ];

    dut2 [
  	  label="{ dut2\r | { <link2> link2 |  <link1> link1 | <mgmt> mgmt } }",
	  pos="18,6!",
	  requires="infix",
	  ];

    host:mgmt1 -- dut1:mgmt [requires="mgmt", color=lightgray]
    host:mon   -- dut1:mon  // Monitor connection to dut2 via dut1
    host:mgmt2 -- dut2:mgmt [requires="mgmt", color=lightgrey]

    dut1:link1 -- host:lb1a  [requires="ieee-mc", lag=true, color=black, fontcolor=black]
    host:lb1b  -- dut2:link1 [requires="ieee-mc", lag=true, color=black, fontcolor=black]

    dut1:link2 -- host:lb2a  [requires="ieee-mc", lag=true, color=black, fontcolor=black]
    host:lb2b  -- dut2:link2 [requires="ieee-mc", lag=true, color=black, fontcolor=black]
}