Keywords: CollapsingIntoArea 2 of 2.png en Logical view of the network nodes 3 7 are merged into Area 1 routers 2 4 5 6 into Area 2 nodes 9 10 11 into Area 3 Nodes 1 and 8 become router r1 and r2 Original Image Roberto Ladu 2012-11-27 Cc-zero Linear graph 5 |