Protocols stack

From Contiki
Revision as of 01:06, 27 October 2014 by Ygoyal (Talk | contribs)

Jump to: navigation, search

Back to Contiki Tutorials

The Contiki netstacks

Three network stacks
1. IPv6
2. IPv4
3. Rime

The Contiki netstack

Contiki Network Stack

Four Layers
1. Network layer
2. MAC (Medium Access Control) layer
3. RDC (Radio Duty Cycling) layer
4. Radio layer

Network & Routing Layer

Contiki automatically forms a wireless IPv6 network with the help of routing protocol called RPL (Routing Protocol for Low-power and Lossy Networks (LLNs)).
RPL forms routing graph from root node or AP (Access Point). It builds acyclic graph from root node called DODAG (Destination Oriented Directed Acyclic Graph).


DIO (DODAG Information Object) messages are broadcast by all nodes starting from the root node. It includes the node's rank, ETX, etc.
The node selects a parent based on the received DIO messages and calculates its rank.

Back to Contiki Tutorials