$Id$

HSLS   |              | ETX
       |              |
       |indicate      |
       |beacons       |
       |------------->|
       |              |
       |subscribe     |
       |to type=ETX   |
       |beacons       |
       |<-------------|
       |              |
       |subscribe     |
       |to neighbor   |
       |indications   |
       |<-------------|
       |              |
       |piggyback     |
       |type=ETX      |
       |<-------------|
       |              |
       |              |
       |type=ETX      |
       |------------->|
       |type=ETX      |
       |------------->|
       |type=ETX      |
       |------------->|
       |              |
       |              |
       |new neighbor  |
       |------------->|
       |neighbor gone |
       |------------->|
       |              |
       |              |
       |neighbor N1,  |
       |cost X1       |
       |<-------------|
       |              |
       |              |
       |neighbor N1,  |
       |cost X1       |
       |<-------------|
       |              |
       |              |

$Id$