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

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

Necessary HWMP routing› Reactive Routing› Proactive Routing

Optional RA-OLSR

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

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

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

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

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

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

Each node has registers itself to the root.

Nodes have Path to the root Root has list of all nodes inside

network.

Precondition for Hybrid Routing How does it work?

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?

Multi-Point Relays Selection Criteria Hello Messages Advantages Disadvantages

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

Questions