1. Network Layer Working Group Overview Open House June 3, 2003 Monique Bourgeois 03209r0ZB

2. Copyright 2003 The ZigBee Alliance, Inc. Provide a protocol for connectionless, end-to-end data transmission in a network of IEEE 802.15.4 nodes, routing data either via a single hop or multiple hops. Working Group Scope

3. Copyright 2003 The ZigBee Alliance, Inc. Working Group Organization Chair – Monique Bourgeois, Motorola Vice Chair – Zachary Smith, Ember Secretary – C.C. Huang, Helicomm Technical Editor – Phil Jamieson, Philips Member Companies: Adcon Atmel Certicom Chipcon Danfoss Eaton Ember ETS Dr. Genz Figure 8 Wireless France Telecom Helicomm Honeywell Intel Invensys Leviton Millennial Net Mitsubishi Motorola Nanotron NTRU NTS Philips Samsung Uniband Electronics Corp. Zensys

4. Copyright 2003 The ZigBee Alliance, Inc. Network Layer Capabilities Star and multihop topologies Transparent recovery from power failure and other transient conditions Flexible routing scheme allows application developers to minimize RAM requirements “Tunable” routing cost functions allow for various performance optimizations Supports low-power operation by allowing nodes – even routers – to sleep

5. Copyright 2003 The ZigBee Alliance, Inc. Network WG Activities Task groups to target specific issues − routing − network & device maintenance − discovery & binding − ZigBee over IP/IP over ZigBee − conformance Simulation group to evaluate design options and provide guidance to the WG Editing team to draft network specification document