## Color coding:
#########################
##  Main FRR: #f08080  red
##  Switches: #d0e0d0  gray
##  RIP:      #19e3d9  Cyan
##  RIPng:    #fcb314  dark yellow
##  OSPFv2:   #32b835  Green
##  OSPFv3:   #19e3d9  Cyan
##  ISIS IPv4 #fcb314  dark yellow
##  ISIS IPv6 #9a81ec  purple
##  BGP IPv4  #eee3d3  beige
##  BGP IPv6  #fdff00  yellow
##### Colors (see http://www.color-hex.com/)

graph ospf_topo1 {
	label="ospf suppress-fa";

	# Routers
	r1 [
		label="r1\nrtr-id 10.0.12.1",
		shape=doubleoctagon,
		fillcolor="#f08080",
		style=filled,
	];
	r2 [
		label="r2 (ABR)\nrtr-id 10.0.23.2",
		shape=doubleoctagon,
		fillcolor="#f08080",
		style=filled,
	];
	r3 [
		label="r3 (ASBR)\nrtr-id 10.0.23.3",
		shape=doubleoctagon,
		fillcolor="#f08080",
		style=filled,
	];

	# Switches
	s1 [
		label="s1\n10.0.12.0/24",
		shape=oval,
		fillcolor="#d0e0d0",
		style=filled,
	];
	s2 [
		label="s2\n10.0.23.0/24",
		shape=oval,
		fillcolor="#d0e0d0",
		style=filled,
	];

	# Connections
    subgraph cluster0 {
        label="area 0"
	    r1 -- s1 [label="eth1\n.1"];
	    r2 -- s1 [label="eth1\n.2"];
    }

    subgraph cluster1 {
        label="area 1\nNSSA"
	    r2 -- s2 [label="eth2\n.2"];
	    r3 -- s2 [label="eth1\n.3"];
    }

    { rank=same; r1; r2; r3; }
}