Net1                                              Net2     

+---------------+                                 +---------------+
|AR1            |                                 |AR2            |
+---------------+                                 +---------------+
|CPA:           |                                 |CPA:           |
|LM:IP1 at IPa1 |                                 |LM:IP1 at IPa2 |
|   changes to  |                                 |               |
|   IP1 at IPa2 |                                 |               |
|---------------|                                 |---------------|
|DPA(IPa1):     | IP1 anchoring effectively moved |DPA(IPa2):     |
|anchored IP1   |            =======>             |anchors IP2,IP1|
+---------------+                                 +---------------+

+...............+                                 +---------------+
.MN(IP1)        .            MN moves             |MN(IP2,IP1)    |
.flow(IP1,...)  .            =======>             |flow(IP1,...)  |
+...............+                                 +---------------+