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Preliminary support for RPL node types. This change allows a node to be in any of three given types:

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* Mesh: this is the normal case. Nodes route data on behalf of others and the node can be reached via a DAO route.
* Leaf: the node does not route data on behalf of others, but others can route data to the node (it has a RPL DAO route).
* Feather: this is a new type of node. A feather node routes data on behalf of others, but does not install DAO routes in the network. Feather nodes allow having a larger number of nodes than the RPL network can sustain in terms of routing tables.

This commit introduces the RPL node types and the feather mode, but does not add support for the leaf node type.
This commit is contained in:
Adam Dunkels 2013-11-20 14:10:39 +01:00
parent af24d07848
commit faff1c2a7e
4 changed files with 83 additions and 0 deletions
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5
core/net/rpl/rpl-icmp6.c
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@ -793,6 +793,11 @@ dao_output_target(rpl_parent_t *parent, uip_ipaddr_t *prefix, uint8_t lifetime)
/* Destination Advertisement Object */
/* If we are in feather mode, we should not send any DAOs */
if(rpl_get_mode() == RPL_MODE_FEATHER) {
return;
}
if(parent == NULL) {
PRINTF("RPL dao_output_target error parent NULL\n");
return;