$Id$

                  HSLS      HSLS                       HSLS
                  router    router                     router
                    ^         ^                          ^
                    |         |                          |
                    v         v                          v
+--------------------------------------------------------------+
|                                                              |
|                       KERNEL                                 |
|         FIB                                                  |
+--------------------------------------------------------------+
           ^        ^         ^                          ^
routing    |        |         | beacons / LSUs           | beacons?
socket     |        v         | (AF_INET, mcast)          (AF_INET, multicast)
(PF_ROUTE) |    +--------+    |                          |
           |    |        |    | (per-peer unicast
           |    |        |    |  sockets?)               |
           v    |Gateway |    v                          v
   +---------+  |Selector|   +------+                 +------+
   |         |  |        |<->|      |                 |      |
   |         |  +--------+   |      |    neighbors    |      |
   |         |               |      |    (AF_UNIX)    |      |
   |         | RIB           |      |---------------->|      |
   |         | (AF_UNIX)     |      |                 |      |
   | Quagga  |<------------->| HSLS |<----------------| ETX  |
   |         | redistribute  |      |   route metrics |      |
   |         |               |      |   (AF_UNIX)     |      |
   |         |               |      |                 |      |
   |         |               |      |                 |      |
   |         |               |      |                 |      |
   |         |               |      |- - - - - - - - >|      |
   +---------+               +------+  beacon/hello   +------+
      ^                                indications?
      | RIB (AF_UNIX)                  (AF_UNIX)
      v
   +------------+
   | OSPF/BGP/  |
   | IS-IS      |
   +------------+

$Id$