Client's Merged TE Topology 2

  /---\      +------------+      +------------+      /---\
  |C11|------|            |------|            |------|C21|
  \---/      |            |      |            |      \---/
             |            |      |            |
             |            |      |            |
             |            |      |            |      /---\
             |    AN11    |------|    AN21    |------|C22|
             |            |      |            |      \---/
             |            |      |            |
             |            |      |            |
  /---\      |            |      |            |      /---\
  |C12|------|            |------|            |------|C23|
  \---/      +------------+      +------------+      \---/

             Client's Merged TE Topology 3

  /---\      +------------+      +---+    +---+      /---\
  |C11|------|            |------|S23|----|S25|------|C21|
  \---/      |            |      +---+   /+---+      \---/
             |            |             /
             |            |            /
             |            |      +---+/   +---+      /---\
             |    AN11    |------|S24|    |S28|------|C22|
             |            |      +---+\  /+---+      \---/
             |            |            \/
             |            |            /\
  /---\      |            |      +---+/  \+---+      /---\
  |C12|------|            |------|S29|----|S27|------|C23|
  \---/      +------------+      +---+    +---+      \---/