diff --git a/test/infamy/topologies/ring-4-duts.dot b/test/infamy/topologies/ring-4-duts.dot
index fb649e9b3..c4c14a5c9 100644
--- a/test/infamy/topologies/ring-4-duts.dot
+++ b/test/infamy/topologies/ring-4-duts.dot
@@ -43,19 +43,19 @@ graph "ring-4-duts" {
 	host:mgmt3 -- R3:mgmt [kind=mgmt, color="lightgray"]
 	host:mgmt4 -- R4:mgmt [kind=mgmt, color="lightgray"]
 
-	# host-Dut links
+	// host-Dut links
 	host:data1 -- R1:data [color="darkgreen"]
 	host:data2 -- R2:data [color="darkgreen"]
 	host:data3 -- R3:data [color="darkgreen"]
 	host:data4 -- R4:data [color="darkgreen"]
 
-	# Ring
+	// Ring
 	R1:ring1 -- R2:ring2 [color="blue",headlabel=".2", label="10.0.12.1/30", taillabel=".1", labeldistance=1, fontcolor="blue"]
 	R2:ring1 -- R3:ring2 [color="blue",headlabel=".2", label="10.0.23.0/30", taillabel=".1", labeldistance=1, fontcolor="blue"]
 	R3:ring1 -- R4:ring2 [color="blue",headlabel=".2", label="192.168.4.0/24", taillabel=".1", labeldistance=1 fontcolor="blue"]
 	R4:ring1 -- R1:ring2 [color="blue",headlabel=".2", label="10.0.41.0/30", taillabel=".1", labeldistance=1, fontcolor="blue"]
 
-	# Cross
+	// Cross
 	R1:cross -- R3:cross [color="black", label="10.0.13.0/30\n\n"]
 	R2:cross -- R4:cross [color="brown", label="\n\n10.0.24.0/30", fontcolor="brown"]
 }
diff --git a/test/virt/dual/topology.dot.in b/test/virt/dual/topology.dot.in
index 588a2ee22..dd6ec75aa 100644
--- a/test/virt/dual/topology.dot.in
+++ b/test/virt/dual/topology.dot.in
@@ -2,7 +2,8 @@ graph "dual" {
 	layout="neato";
 	overlap="false";
 	splines="true";
-	esep="+20";
+	esep="+30";
+	sep="+30";
 
         node [shape=record, fontname="monospace"];
 	edge [color="cornflowerblue", penwidth="2"];
@@ -14,7 +15,9 @@ graph "dual" {
 
         host [
 	    label="host | { <d1a> d1a | <d1b> d1b | <d1c> d1c | <d2a> d2a | <d2b> d2b | <d2c> d2c }",
-	    color="grey",fontcolor="grey",pos="0,15!",
+	    color="grey",
+	    fontcolor="grey",
+	    pos="0,15!",
 	    kind="controller",
 	];
 
@@ -35,15 +38,15 @@ graph "dual" {
 	    qn_usb="dut2.usb"
 	];
 
-	host:d1a -- dut1:e1 [kind=mgmt]
+	host:d1a -- dut1:e1 [kind=mgmt, color="lightgray"]
 	host:d1b -- dut1:e2
 	host:d1c -- dut1:e3
 
-	host:d2a -- dut2:e1 [kind=mgmt]
+	host:d2a -- dut2:e1 [kind=mgmt, color="lightgray"]
 	host:d2b -- dut2:e2
 	host:d2c -- dut2:e3
 
-	dut1:e4 -- dut2:e6
-	dut1:e5 -- dut2:e5
-	dut1:e6 -- dut2:e4
+	dut1:e4 -- dut2:e6 [color="black"]
+	dut1:e5 -- dut2:e5 [color="red"]
+	dut1:e6 -- dut2:e4 [color="black"]
 }
diff --git a/test/virt/dual/topology.svg b/test/virt/dual/topology.svg
new file mode 100644
index 000000000..c286cd29b
--- /dev/null
+++ b/test/virt/dual/topology.svg
@@ -0,0 +1,112 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
+ "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<!-- Generated by graphviz version 2.43.0 (0)
+ -->
+<!-- Title: dual Pages: 1 -->
+<svg width="365pt" height="208pt"
+ viewBox="0.00 0.00 365.08 208.01" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 204.01)">
+<title>dual</title>
+<polygon fill="white" stroke="transparent" points="-4,4 -4,-204.01 361.08,-204.01 361.08,4 -4,4"/>
+<!-- host -->
+<g id="node1" class="node">
+<title>host</title>
+<polygon fill="none" stroke="grey" points="0,-31.01 0,-169.01 91,-169.01 91,-31.01 0,-31.01"/>
+<text text-anchor="middle" x="25" y="-96.31" font-family="monospace" font-size="14.00" fill="grey">host</text>
+<polyline fill="none" stroke="grey" points="50,-31.01 50,-169.01 "/>
+<text text-anchor="middle" x="70.5" y="-153.81" font-family="monospace" font-size="14.00" fill="grey">d1a</text>
+<polyline fill="none" stroke="grey" points="50,-146.01 91,-146.01 "/>
+<text text-anchor="middle" x="70.5" y="-130.81" font-family="monospace" font-size="14.00" fill="grey">d1b</text>
+<polyline fill="none" stroke="grey" points="50,-123.01 91,-123.01 "/>
+<text text-anchor="middle" x="70.5" y="-107.81" font-family="monospace" font-size="14.00" fill="grey">d1c</text>
+<polyline fill="none" stroke="grey" points="50,-100.01 91,-100.01 "/>
+<text text-anchor="middle" x="70.5" y="-84.81" font-family="monospace" font-size="14.00" fill="grey">d2a</text>
+<polyline fill="none" stroke="grey" points="50,-77.01 91,-77.01 "/>
+<text text-anchor="middle" x="70.5" y="-61.81" font-family="monospace" font-size="14.00" fill="grey">d2b</text>
+<polyline fill="none" stroke="grey" points="50,-54.01 91,-54.01 "/>
+<text text-anchor="middle" x="70.5" y="-38.81" font-family="monospace" font-size="14.00" fill="grey">d2c</text>
+</g>
+<!-- dut1 -->
+<g id="node2" class="node">
+<title>dut1</title>
+<polygon fill="none" stroke="black" points="204.19,-130.51 204.19,-199.51 320.19,-199.51 320.19,-130.51 204.19,-130.51"/>
+<text text-anchor="middle" x="220.69" y="-184.31" font-family="monospace" font-size="14.00">e1</text>
+<polyline fill="none" stroke="black" points="204.19,-176.51 237.19,-176.51 "/>
+<text text-anchor="middle" x="220.69" y="-161.31" font-family="monospace" font-size="14.00">e2</text>
+<polyline fill="none" stroke="black" points="204.19,-153.51 237.19,-153.51 "/>
+<text text-anchor="middle" x="220.69" y="-138.31" font-family="monospace" font-size="14.00">e3</text>
+<polyline fill="none" stroke="black" points="237.19,-130.51 237.19,-199.51 "/>
+<text text-anchor="middle" x="262.19" y="-161.31" font-family="monospace" font-size="14.00">dut1</text>
+<polyline fill="none" stroke="black" points="287.19,-130.51 287.19,-199.51 "/>
+<text text-anchor="middle" x="303.69" y="-184.31" font-family="monospace" font-size="14.00">e4</text>
+<polyline fill="none" stroke="black" points="287.19,-176.51 320.19,-176.51 "/>
+<text text-anchor="middle" x="303.69" y="-161.31" font-family="monospace" font-size="14.00">e5</text>
+<polyline fill="none" stroke="black" points="287.19,-153.51 320.19,-153.51 "/>
+<text text-anchor="middle" x="303.69" y="-138.31" font-family="monospace" font-size="14.00">e6</text>
+</g>
+<!-- host&#45;&#45;dut1 -->
+<g id="edge1" class="edge">
+<title>host:d1a&#45;&#45;dut1:e1</title>
+<path fill="none" stroke="lightgray" stroke-width="2" d="M91.5,-158.01C91.5,-158.01 204.19,-188.01 204.19,-188.01"/>
+</g>
+<!-- host&#45;&#45;dut1 -->
+<g id="edge2" class="edge">
+<title>host:d1b&#45;&#45;dut1:e2</title>
+<path fill="none" stroke="cornflowerblue" stroke-width="2" d="M91.5,-135.01C91.5,-135.01 204.19,-165.01 204.19,-165.01"/>
+</g>
+<!-- host&#45;&#45;dut1 -->
+<g id="edge3" class="edge">
+<title>host:d1c&#45;&#45;dut1:e3</title>
+<path fill="none" stroke="cornflowerblue" stroke-width="2" d="M91.5,-112.01C91.5,-112.01 204.19,-142.01 204.19,-142.01"/>
+</g>
+<!-- dut2 -->
+<g id="node3" class="node">
+<title>dut2</title>
+<polygon fill="none" stroke="black" points="204.19,-0.5 204.19,-69.5 320.19,-69.5 320.19,-0.5 204.19,-0.5"/>
+<text text-anchor="middle" x="220.69" y="-54.3" font-family="monospace" font-size="14.00">e1</text>
+<polyline fill="none" stroke="black" points="204.19,-46.5 237.19,-46.5 "/>
+<text text-anchor="middle" x="220.69" y="-31.3" font-family="monospace" font-size="14.00">e2</text>
+<polyline fill="none" stroke="black" points="204.19,-23.5 237.19,-23.5 "/>
+<text text-anchor="middle" x="220.69" y="-8.3" font-family="monospace" font-size="14.00">e3</text>
+<polyline fill="none" stroke="black" points="237.19,-0.5 237.19,-69.5 "/>
+<text text-anchor="middle" x="262.19" y="-31.3" font-family="monospace" font-size="14.00">dut2</text>
+<polyline fill="none" stroke="black" points="287.19,-0.5 287.19,-69.5 "/>
+<text text-anchor="middle" x="303.69" y="-54.3" font-family="monospace" font-size="14.00">e4</text>
+<polyline fill="none" stroke="black" points="287.19,-46.5 320.19,-46.5 "/>
+<text text-anchor="middle" x="303.69" y="-31.3" font-family="monospace" font-size="14.00">e5</text>
+<polyline fill="none" stroke="black" points="287.19,-23.5 320.19,-23.5 "/>
+<text text-anchor="middle" x="303.69" y="-8.3" font-family="monospace" font-size="14.00">e6</text>
+</g>
+<!-- host&#45;&#45;dut2 -->
+<g id="edge4" class="edge">
+<title>host:d2a&#45;&#45;dut2:e1</title>
+<path fill="none" stroke="lightgray" stroke-width="2" d="M91.5,-88.01C91.5,-88.01 204.19,-58 204.19,-58"/>
+</g>
+<!-- host&#45;&#45;dut2 -->
+<g id="edge5" class="edge">
+<title>host:d2b&#45;&#45;dut2:e2</title>
+<path fill="none" stroke="cornflowerblue" stroke-width="2" d="M91.5,-65.01C91.5,-65.01 204.19,-35 204.19,-35"/>
+</g>
+<!-- host&#45;&#45;dut2 -->
+<g id="edge6" class="edge">
+<title>host:d2c&#45;&#45;dut2:e3</title>
+<path fill="none" stroke="cornflowerblue" stroke-width="2" d="M91.5,-42.01C91.5,-42.01 204.19,-12 204.19,-12"/>
+</g>
+<!-- dut1&#45;&#45;dut2 -->
+<g id="edge7" class="edge">
+<title>dut1:e4&#45;&#45;dut2:e6</title>
+<path fill="none" stroke="black" stroke-width="2" d="M320.27,-187.95C320.27,-187.95 357,-140.44 350.19,-99.5 343.45,-58.98 320.27,-12.06 320.27,-12.06"/>
+</g>
+<!-- dut1&#45;&#45;dut2 -->
+<g id="edge8" class="edge">
+<title>dut1:e5&#45;&#45;dut2:e5</title>
+<path fill="none" stroke="red" stroke-width="2" d="M320.29,-165.01C320.29,-165.01 343.38,-131.37 350.19,-100.51 357.08,-69.26 320.29,-35 320.29,-35"/>
+</g>
+<!-- dut1&#45;&#45;dut2 -->
+<g id="edge9" class="edge">
+<title>dut1:e6&#45;&#45;dut2:e4</title>
+<path fill="none" stroke="black" stroke-width="2" d="M304.19,-130.01C304.19,-130.01 304.19,-70 304.19,-70"/>
+</g>
+</g>
+</svg>
diff --git a/test/virt/quad/topology.dot.in b/test/virt/quad/topology.dot.in
index de3d55345..7e7cfd569 100644
--- a/test/virt/quad/topology.dot.in
+++ b/test/virt/quad/topology.dot.in
@@ -2,7 +2,8 @@ graph "quad" {
 	layout="neato";
 	overlap="false";
 	splines="true";
-	esep="+20";
+	esep="+30";
+	sep="+30";
 
         node [shape=record, fontname="monospace"];
 	edge [color="cornflowerblue", penwidth="2"];
@@ -13,30 +14,31 @@ graph "quad" {
 	qn_append="quiet";
 
         host [
-	    label="host | { <d1a> d1a | <d1b> d1b | <d1c> d1c | <d1c> d1d | <d2a> d2a | <d2b> d2b | <d2c> d2c | <d2d> d2d | <d2a> d3a | <d3b> d3b | <d3c> d3c | <d3c> d3d |  <d4a> d4a | <d4b> d4b | <d4c> d4c | <d4c> d4d }",
-	    color="grey",fontcolor="grey",pos="0,15!",
+	    label="host | { <d1a> d1a | <d1b> d1b | <d1c> d1c | <d1d> d1d | <d2a> d2a | <d2b> d2b | <d2c> d2c | <d2d> d2d | <d3a> d3a | <d3b> d3b | <d3c> d3c | <d3d> d3d |  <d4a> d4a | <d4b> d4b | <d4c> d4c | <d4d> d4d }",
+	    color="grey", fontcolor="grey",
+	    pos="-15,15!",
 	    kind="controller",
 	];
 
         dut1 [
-	    label="{ <e1> e1 | <e2> e2 | <e3> e3 } | dut1 | { <e4> e4 | <e5> e5 | <e6> e6 | <e7> e7 | <e8> e8}",
-	    pos="10,18!",
+	    label="{ <e1> e1 | <e2> e2 | <e3> e3 | <e4> e4 } | dut1 | { <e5> e5 | <e6> e6 | <e7> e7 | <e8> e8}",
+	    pos="10,30!",
 	    kind="infix",
 	    qn_console=9001,
 	    qn_mem="384M",
 	    qn_usb="dut1.usb"
 	    ];
         dut2 [
-	    label="{ <e1> e1 | <e2> e2 | <e3> e3 } | dut2 | { <e4> e4 | <e5> e5 | <e6> e6  | <e7> e7 | <e8> e8}",
-	    pos="10,12!",
+	    label="{ <e1> e1 | <e2> e2 | <e3> e3 | <e4> e4 } | dut2 | { <e5> e5 | <e6> e6  | <e7> e7 | <e8> e8}",
+	    pos="0,20!",
 	    kind="infix",
 	    qn_console=9002,
 	    qn_mem="384M",
 	    qn_usb="dut2.usb"
 	];
 	dut3 [
-	    label="{ <e1> e1 | <e2> e2 | <e3> e3 } | dut2 | { <e4> e4 | <e5> e5 | <e6> e6  | <e7> e7 | <e8> e8}",
-	    pos="10,12!",
+	    label="{ <e1> e1 | <e2> e2 | <e3> e3 | <e4> e4 } | dut3 | { <e5> e5 | <e6> e6  | <e7> e7 | <e8> e8}",
+	    pos="0,10!",
 	    kind="infix",
 	    qn_console=9003,
 	    qn_mem="384M",
@@ -44,41 +46,44 @@ graph "quad" {
 	];
 
 	dut4 [
-	    label="{ <e1> e1 | <e2> e2 | <e3> e3 } | dut2 | { <e4> e4 | <e5> e5 | <e6> e6  | <e7> e7 | <e8> e8}",
-	    pos="10,12!",
+	    label="{ <e1> e1 | <e2> e2 | <e3> e3 | <e4> e4 } | dut4 | { <e5> e5 | <e6> e6  | <e7> e7 | <e8> e8}",
+	    pos="10,0!",
 	    kind="infix",
 	    qn_console=9004,
 	    qn_mem="384M",
 	    qn_usb="dut4.usb"
 	];
 
-	host:d1a -- dut1:e1 [kind=mgmt]
+	host:d1a -- dut1:e1 [kind=mgmt, color="lightgray"]
 	host:d1b -- dut1:e2
 	host:d1c -- dut1:e3
 	host:d1d -- dut1:e4
 
-	host:d2a -- dut2:e1 [kind=mgmt]
+	host:d2a -- dut2:e1 [kind=mgmt, color="lightgray"]
 	host:d2b -- dut2:e2
 	host:d2c -- dut2:e3
 	host:d2d -- dut2:e4
 
-	host:d3a -- dut3:e1 [kind=mgmt]
+	host:d3a -- dut3:e1 [kind=mgmt, color="lightgray"]
 	host:d3b -- dut3:e2
 	host:d3c -- dut3:e3
 	host:d3d -- dut3:e4
 
-	host:d4a -- dut4:e1 [kind=mgmt]
+	host:d4a -- dut4:e1 [kind=mgmt, color="lightgray"]
 	host:d4b -- dut4:e2
 	host:d4c -- dut4:e3
 	host:d4d -- dut4:e4
 
-	# Ring
-	dut1:e5 -- dut2:e6
-	dut2:e5 -- dut3:e6
-	dut3:e5 -- dut4:e6
-	dut4:e5 -- dut1:e6
+        // Lag
+	dut2:e7 -- dut3:e6 [color="black", penwidth="3"]
+	dut2:e8 -- dut3:e5 [color="black", penwidth="3"]
 
-	# Cross-links
-	dut3:e7 -- dut1:e7
-	dut2:e7 -- dut4:e7
+	// Ring
+	dut1:e8 -- dut2:e5 [color="black"]
+	dut3:e8 -- dut4:e5 [color="black"]
+	dut4:e8 -- dut1:e5 [color="black"]
+
+	// Cross-links
+	dut1:e6 -- dut3:e7 [color="red"]
+	dut2:e6 -- dut4:e7 [color="red"]
 }
diff --git a/test/virt/quad/topology.svg b/test/virt/quad/topology.svg
new file mode 100644
index 000000000..f4ddf9ded
--- /dev/null
+++ b/test/virt/quad/topology.svg
@@ -0,0 +1,254 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
+ "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<!-- Generated by graphviz version 2.43.0 (0)
+ -->
+<!-- Title: quad Pages: 1 -->
+<svg width="542pt" height="560pt"
+ viewBox="0.00 0.00 541.97 560.05" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 556.05)">
+<title>quad</title>
+<polygon fill="white" stroke="transparent" points="-4,4 -4,-556.05 537.97,-556.05 537.97,4 -4,4"/>
+<!-- host -->
+<g id="node1" class="node">
+<title>host</title>
+<polygon fill="none" stroke="grey" points="0,-92.02 0,-460.02 91,-460.02 91,-92.02 0,-92.02"/>
+<text text-anchor="middle" x="25" y="-272.32" font-family="monospace" font-size="14.00" fill="grey">host</text>
+<polyline fill="none" stroke="grey" points="50,-92.02 50,-460.02 "/>
+<text text-anchor="middle" x="70.5" y="-444.82" font-family="monospace" font-size="14.00" fill="grey">d1a</text>
+<polyline fill="none" stroke="grey" points="50,-437.02 91,-437.02 "/>
+<text text-anchor="middle" x="70.5" y="-421.82" font-family="monospace" font-size="14.00" fill="grey">d1b</text>
+<polyline fill="none" stroke="grey" points="50,-414.02 91,-414.02 "/>
+<text text-anchor="middle" x="70.5" y="-398.82" font-family="monospace" font-size="14.00" fill="grey">d1c</text>
+<polyline fill="none" stroke="grey" points="50,-391.02 91,-391.02 "/>
+<text text-anchor="middle" x="70.5" y="-375.82" font-family="monospace" font-size="14.00" fill="grey">d1d</text>
+<polyline fill="none" stroke="grey" points="50,-368.02 91,-368.02 "/>
+<text text-anchor="middle" x="70.5" y="-352.82" font-family="monospace" font-size="14.00" fill="grey">d2a</text>
+<polyline fill="none" stroke="grey" points="50,-345.02 91,-345.02 "/>
+<text text-anchor="middle" x="70.5" y="-329.82" font-family="monospace" font-size="14.00" fill="grey">d2b</text>
+<polyline fill="none" stroke="grey" points="50,-322.02 91,-322.02 "/>
+<text text-anchor="middle" x="70.5" y="-306.82" font-family="monospace" font-size="14.00" fill="grey">d2c</text>
+<polyline fill="none" stroke="grey" points="50,-299.02 91,-299.02 "/>
+<text text-anchor="middle" x="70.5" y="-283.82" font-family="monospace" font-size="14.00" fill="grey">d2d</text>
+<polyline fill="none" stroke="grey" points="50,-276.02 91,-276.02 "/>
+<text text-anchor="middle" x="70.5" y="-260.82" font-family="monospace" font-size="14.00" fill="grey">d3a</text>
+<polyline fill="none" stroke="grey" points="50,-253.02 91,-253.02 "/>
+<text text-anchor="middle" x="70.5" y="-237.82" font-family="monospace" font-size="14.00" fill="grey">d3b</text>
+<polyline fill="none" stroke="grey" points="50,-230.02 91,-230.02 "/>
+<text text-anchor="middle" x="70.5" y="-214.82" font-family="monospace" font-size="14.00" fill="grey">d3c</text>
+<polyline fill="none" stroke="grey" points="50,-207.02 91,-207.02 "/>
+<text text-anchor="middle" x="70.5" y="-191.82" font-family="monospace" font-size="14.00" fill="grey">d3d</text>
+<polyline fill="none" stroke="grey" points="50,-184.02 91,-184.02 "/>
+<text text-anchor="middle" x="70.5" y="-168.82" font-family="monospace" font-size="14.00" fill="grey">d4a</text>
+<polyline fill="none" stroke="grey" points="50,-161.02 91,-161.02 "/>
+<text text-anchor="middle" x="70.5" y="-145.82" font-family="monospace" font-size="14.00" fill="grey">d4b</text>
+<polyline fill="none" stroke="grey" points="50,-138.02 91,-138.02 "/>
+<text text-anchor="middle" x="70.5" y="-122.82" font-family="monospace" font-size="14.00" fill="grey">d4c</text>
+<polyline fill="none" stroke="grey" points="50,-115.02 91,-115.02 "/>
+<text text-anchor="middle" x="70.5" y="-99.82" font-family="monospace" font-size="14.00" fill="grey">d4d</text>
+</g>
+<!-- dut1 -->
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