doc.: IEEE /950r1 Submission November 2003 Harry Worstell, AT&T et alSlide 1 The Need for Managed IEEE Devices Harry Worstell AT&T Research Zhun Zhong Philips Martin Lefkowitz Trapeze Networks Tim Olson Cisco Sudheer Matta Trapeze Networks J Kim AT&T Research Kazuyuki Sakoda Sony

doc.: IEEE /950r1 Submission November 2003 Harry Worstell, AT&T et alSlide 2 Outline of presentation : Indoor Wireless LAN Migration : WLAN History Study Group Purpose Statement Expected topics for remotely managed dot 11 devices How will the dot 11 devices get managed Questions and Discussion Straw Poll

doc.: IEEE /950r1 Submission November 2003 Harry Worstell, AT&T et alSlide : Spread spectrum technology first used by the military 1980: Limited applications using narrowband technology 1989: FCC assigns frequency for commercial use. ISM bands authorized (900 MHz, 2.4 GHz, 5 GHz) 1990: 900 MHz products begin shipping –IEEE begins work on industry standard 1994: 2.4 GHz products begin shipping 1997: IEEE standard approved. –2.4 GHz products begin dominating the scene 1998: FCC authorizes the UNII Band 1999: IEEE a&b standard ratified. –WECA formed for interoperability testing –Wide Band Frequency Hopping NPRM Released by FCC –“Enhanced MAC - QoS and Security” Task Group chartered 2001 QoS/Security enhancements Task Groups begin 2003 FCC expands the UNII band by 200MHz (12 channels) : WLAN History

doc.: IEEE /950r1 Submission November 2003 Harry Worstell, AT&T et alSlide 4 Early 1980’s- began selling vertical market narrowband solutions geared to the retail and manufacturing industries FCC authorizes the ISM bands for WLAN, then assigns a frequency for commercial use in , NCR (now Lucent/Avaya) and others penetrate the horizontal markets with 900MHz products, but many factors prevented market penetration. –Cost (low quantities) –Speed (1-2 Mbps) –PC Integration: Awkward antenna’s and products –Market acceptance of the technology LANs with QoS support become an industry focus due to growth of multimedia, streaming, VoIP, and home networking of broadband cable/DSL services 2003 – Extension of wired managed services to wired and wireless managed service in enterprise (large and medium scale), hot spot, campus markets grow due to market penetration of wireless devices, high cost of IT personnel and poor economy : WLAN History (cont.)

doc.: IEEE /950r1 Submission November 2003 Harry Worstell, AT&T et alSlide 5  Peer/Peer and Client/Server  Small User Population  Isolated "Cells" and User Groups  Non-Contiguous Coverage  Indoor Operation  Limited Mobility  Mostly Asynchronous Traffic  Slower than Ethernet A A First Generation Wireless LANs  InterNet/IntraNet  Ethernet-Compatible Speeds  Multiple RF Bands to operate Second-Generation Wireless LANs LL arger User Population MM anaged Services FF ull Roaming/Handoff Capability CC ontiguous Coverage in Dense Areas WW ider Area Coverage for Community LANs MM obility (Follow-Me Service) MM ix of Async and Isochronous Traffic HH igher System Utilization EE nhanced Security IEEE Fourth-Generation of Wireless Communications Third-Generation Wireless Communications TDMA EDGE Wideband CDMA : Indoor Wireless LAN Migration Merge of 3G and 4G services (WLAN & WAN)

doc.: IEEE /950r1 Submission November 2003 Harry Worstell, AT&T et alSlide 6  Peer/Peer and Client/Server  Small User Population  Isolated "Cells" and User Groups  Non-Contiguous Coverage  Indoor Operation  Limited Mobility  Mostly Asynchronous Traffic  Slower than Ethernet A A First Generation Wireless LANs  InterNet/IntraNet  Ethernet-Compatible Speeds  Multiple RF Bands to operate Second-Generation Wireless LANs  Larger User Population  Managed Services  Full Roaming/Handoff Capability  Contiguous Coverage in Dense Areas  Wider Area Coverage for Community LANs  Mobility (Follow-Me Service)  Mix of Async and Isochronous Traffic  Higher System Utilization  Enhanced Security IEEE Fourth-Generation of Wireless Communications Third-Generation Wireless Communications TDMA EDGE Wideband CDMA : Indoor Wireless LAN Migration Merge of 3G and 4G services (WLAN & WAN)

doc.: IEEE /950r1 Submission November 2003 Harry Worstell, AT&T et alSlide 7 Study Group Purpose Statement The proposed Study Group will evaluate the need to provide mechanisms in devices that enhance management capabilities and extend management of the wired networks to the wireless equipment attached to those networks. These mechanism enable the types of services that are extremely desirable for entities such as managed service providers, company IT personnel, hot spot providers, applications developers, etc. Once evaluated, it is expected that a PAR and a 5 Criteria document will be written and submitted to the IEEE Working Group so that a Task Group can be formed. This is a logical extension to the work now underway in Task Group “k”.

doc.: IEEE /950r1 Submission November 2003 Harry Worstell, AT&T et alSlide 8 Process of Managed devices in the Standards Inter-Access Port Protocol Radio Resource Measurements Remote Managed Device (Small steps to make good progress) Inter-Communications between APs (Now a Standard) Ability to obtain MAC and PHY measurements by Upper Layers (Now a Task Group) Enable external entities to manage Devices (APs and Clients) (Proposed Next Logical Step)

doc.: IEEE /950r1 Submission November 2003 Harry Worstell, AT&T et alSlide 9 Expected topics for remotely managed dot 11 devices Channel (frequency – APs & clients) Reset the Devices Remotely Antenna Selection Load Balancing Access to Client Power Control Rogue Handling Service Handling Enable mechanisms already in dot 11 to outside entities (TGh) Client Roaming Dynamic Adaptation of clients/AP Enable Interference Mitigation All of the above with some way to do security

doc.: IEEE /950r1 Submission November 2003 Harry Worstell, AT&T et alSlide 10 How will the dot 11 devices get managed MIB Application (OID’s) Over the air to client devices (by Management Action Frames) Others?

doc.: IEEE /950r1 Submission November 2003 Harry Worstell, AT&T et alSlide 11 Questions and Discussion

doc.: IEEE /950r1 Submission November 2003 Harry Worstell, AT&T et alSlide 12 Straw Poll Would you support forming a study group to evaluate the need to enable external network management entities extend the managed services of the wired networks through to the wireless devices attached to those networks, which is a logical extension of the measurement work now underway in TGk? Yes No Abstain