graph G {
rankdir="LR";
size="5.625,7.75";
ratio="fill";
subgraph cluster0 {
color="white"
"engr-fe21.gw.nd.edu"
"radole.lcs.mit.edu"
"shub-e27.gw.nd.edu"
"ihtfp.mit.edu"
"core1-ord1-oc48.ord2.above.net"
"albnxg1.ip.tele.dk"
}
subgraph cluster1 {
color="white"
"nycmny1-cr1.bbnplanet.net"
"ccn-nerif35.Berkeley.EDU"
"rip.Berkeley.EDU"
"chicago1-nbr1.bbnplanet.net"
"ccngw-ner-cc.Berkeley.EDU"
"above-bbn-45Mbps.ord.above.net"
}
subgraph cluster2 {
color="white"
"gw-dkuug.oeb.tdk.ne"
"vabi1-gige-1-1.google.com"
}
subgraph cluster3 {
color="white"
"boston1-br1.bbnplanet.net"
"cambridge1-nbr2.bbnplanet.net"
"helios.ee.lbl.gov"
"lilac-dmc.Berkeley.EDU"
"teledk.bbnplanet.net"
"albnxg1.ip.tele.dk"
}

edge[style="bold"];

"engr-fe21.gw.nd.edu" -- "shub-e27.gw.nd.edu"
"shub-e27.gw.nd.edu" -- "chicago1-nbr1.bbnplanet.net"
"shub-e27.gw.nd.edu" -- "core1-ord1-oc48.ord2.above.net"
"chicago1-nbr1.bbnplanet.net" -- "above-bbn-45Mbps.ord.above.net"
"above-bbn-45Mbps.ord.above.net" -- "engr-fe21.gw.nd.edu"
"above-bbn-45Mbps.ord.above.net" -- "core1-ord1-oc48.ord2.above.net"
"core1-ord1-oc48.ord2.above.net" -- "vabi1-gige-1-1.google.com"
"vabi1-gige-1-1.google.com" -- "chicago1-nbr1.bbnplanet.net"

"cambridge1-nbr2.bbnplanet.net" -- "boston1-br1.bbnplanet.net"
"ihtfp.mit.edu" -- "boston1-br1.bbnplanet.net"
"cambridge1-nbr2.bbnplanet.net" -- "radole.lcs.mit.edu"
"ihtfp.mit.edu" -- "radole.lcs.mit.edu"

"helios.ee.lbl.gov" -- "lilac-dmc.Berkeley.EDU"
"lilac-dmc.Berkeley.EDU" -- "ccngw-ner-cc.Berkeley.EDU"
"ccngw-ner-cc.Berkeley.EDU" -- "ccn-nerif35.Berkeley.EDU"
"ccn-nerif35.Berkeley.EDU" -- "rip.Berkeley.EDU"
"helios.ee.lbl.gov" -- "ccn-nerif35.Berkeley.EDU"
"lilac-dmc.Berkeley.EDU" -- "rip.Berkeley.EDU"

"nycmny1-cr1.bbnplanet.net" -- "teledk.bbnplanet.net"
"teledk.bbnplanet.net" -- "albnxg1.ip.tele.dk"
"albnxg1.ip.tele.dk" -- "gw-dkuug.oeb.tdk.ne"
"nycmny1-cr1.bbnplanet.net" -- "gw-dkuug.oeb.tdk.ne"
"nycmny1-cr1.bbnplanet.net" -- "albnxg1.ip.tele.dk"

}