Commit 8ee9b2f3 authored by Juliusz Chroboczek's avatar Juliusz Chroboczek

Opportunistically send unicast IHUs.

parent c1625c49
...@@ -1037,14 +1037,27 @@ send_ihu(struct neighbour *neigh, struct network *net) ...@@ -1037,14 +1037,27 @@ send_ihu(struct neighbour *neigh, struct network *net)
interval = (net->hello_interval * 3 + 9) / 10; interval = (net->hello_interval * 3 + 9) / 10;
debugf("Sending ihu %d on %s to %s (%s).\n", /* Conceptually, an IHU is a unicast message. We usually send
them as multicast, since this allows aggregation into
a single packet and avoids an ARP exchange. If we already
have a unicast message queued for this neighbour, however,
we might as well piggyback the IHU onto it. */
debugf("Sending %sihu %d on %s to %s (%s).\n",
unicast_neighbour == neigh ? "unicast " : "",
rxcost, rxcost,
neigh->network->ifname, neigh->network->ifname,
format_address(neigh->id), format_address(neigh->id),
format_address(neigh->address)); format_address(neigh->address));
send_message(net, 1, 128, 0, interval < 0xFFFF ? interval : 0, if(unicast_neighbour == neigh) {
send_unicast_message(neigh, 1, 128, 0,
interval < 0xFFFF ? interval : 0,
rxcost, neigh->id); rxcost, neigh->id);
} else {
send_message(net, 1, 128, 0,
interval < 0xFFFF ? interval : 0,
rxcost, neigh->id);
}
} }
} }
......
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