Abilene and sprint topologies
diff --git a/examples/abilene-topology.txt b/examples/abilene-topology.txt
new file mode 100644
index 0000000..0eeb3f7
--- /dev/null
+++ b/examples/abilene-topology.txt
@@ -0,0 +1,16 @@
+12  15
+1   2   9920000 1   1   100 100
+2   5   9920000 1176    1   100 100
+2   6   2480000 587 1   100 100
+2   12  9920000 846 1   100 100
+3   6   9920000 260 1   100 100
+3   9   9920000 700 1   100 100
+4   7   9920000 639 1   100 100
+4   10  9920000 1295 1   100 100
+4   11  9920000 2095    1   100 100
+5   7   9920000 902 1   100 100
+5   8   9920000 1893 1   100 100
+6   7   9920000 548 1   100 100
+8   10  9920000 366 1   100 100
+9   12  9920000 233 1   100 100
+10  11  9920000 861 1   100 100