2.  History  Routing in 802.11s  HWMP  Reactive/Proactive Routing  Hybrid Routing  RA-OLSR  Summery

3.  Drafts › Draft D0.01: March, 2006 (First Draft) › Draft D1.0: Dec, 2006 › Draft D1.06: July, 2007

5.  Necessary HWMP routing › Reactive Routing › Proactive Routing  Optional RA-OLSR

6.  Based on MAC address.  Uses radio-aware routing metric.  Unicast, Multicast and Boradcast.  Path Selection vs. routing.  Single/Multiple radio devices.

7.  Extension of 4-address frame.  MAC layer is amended.  Physical Layer stays intact.  Compatible with other layers.  Mesh security is based on 802.11i.

9.  Foundation: Adaptation of RM-AODV  Default routing protocol for IEEE 802.11s  Reactive/proactive routing components.  Used in IEEE 802.11s because › Mobile Nodes › Static Nodes

10.  Definition  Based on AODV and DSR  MAC-LAYER and RA-Metric  RREQ, RREP, RERR messages.

11.  Def: Maintain routes to all destinations  Why Proactive routing?  Registration/Non-registration Modes

12.  RANN messages  Nodes have path to root  Root has no information about children

13.  Each node has registers itself to the root.  Nodes have Path to the root  Root has list of all nodes inside network.

14.  Precondition for Hybrid Routing  How does it work?

19.  Optional proactive routing protocol of the emerging IEEE 802.11s framework.  Adaptation of OLSR  Routing Metric: Radio-Aware  Use of Mac instead of IP  Why RA-OLSR?

22.  Multi-Point Relays Selection Criteria  Hello Messages  Advantages  Disadvantages

23.  802.11s is a standard for WMN  Uses a Hybrid Routing  Reactive/Proactive/RA-OLSR  It’s NOT complete yet.

24. Questions