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Doc.: IEEE 802.11-04/1191r4 Submission November 2004 Mike Moreton, STMicroelectronicsSlide 1 AP Architecture Thoughts Mike Moreton, STMicroelectronics.

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Presentation on theme: "Doc.: IEEE 802.11-04/1191r4 Submission November 2004 Mike Moreton, STMicroelectronicsSlide 1 AP Architecture Thoughts Mike Moreton, STMicroelectronics."— Presentation transcript:

1 doc.: IEEE 802.11-04/1191r4 Submission November 2004 Mike Moreton, STMicroelectronicsSlide 1 AP Architecture Thoughts Mike Moreton, STMicroelectronics

2 doc.: IEEE 802.11-04/1191r4 Submission November 2004 Mike Moreton, STMicroelectronicsSlide 2 Introduction 802.11 defines terms such as “Integration Function”, “Portal”, “DS”, “DSM” etc. Definition is deliberately vague –To allow different implementations Hence different companies have different views of what these terms actually mean –Almost any diagram is likely to be unacceptable to a majority of companies

3 doc.: IEEE 802.11-04/1191r4 Submission November 2004 Mike Moreton, STMicroelectronicsSlide 3 3.20 distribution system (DS): A system used to interconnect a set of BSSs and integrated LANs to create an ESS. 3.21 distribution system medium (DSM): The medium or set of media used by a DS for communications between APs and portals of an ESS. 3.25 extended service set (ESS): A set of one or more interconnected BSSs and integrated LANs that appears as a single BSS to the LLC layer at any station associated with one of those BSSs. 3.29 integration: The service that enables delivery of MSDUs between the DS and an existing, non-IEEE 802.11 LAN (via a portal). 3.39 portal: The logical point at which MSDUs from a non- IEEE 802.11 LAN enter the DS of an ESS. Definitions

4 doc.: IEEE 802.11-04/1191r4 Submission November 2004 Mike Moreton, STMicroelectronicsSlide 4 Position of Portal

5 doc.: IEEE 802.11-04/1191r4 Submission November 2004 Mike Moreton, STMicroelectronicsSlide 5 DS and Integrated LAN (1999) Integrated LAN Portal (Integration Function) 802.11 MAC (AP STA) DSM DS AP STA BSS Non 802.11 Endpoint ESS 802.11 MAC (AP STA)

6 doc.: IEEE 802.11-04/1191r4 Submission November 2004 Mike Moreton, STMicroelectronicsSlide 6 Integrated LAN Portal 802.11 MAC Relay Entity 802.11 MAC (AP STA) DSM DS 802.11 MAC (AP STA) DS and Integrated LAN (1999) – missing blocks filled in 802.11 MAC Relay Entity AP STA BSS Non 802.11 Endpoint ESS DSM MAC

7 doc.: IEEE 802.11-04/1191r4 Submission November 2004 Mike Moreton, STMicroelectronicsSlide 7 802.1D Architecture

8 doc.: IEEE 802.11-04/1191r4 Submission November 2004 Mike Moreton, STMicroelectronicsSlide 8 Integrated LAN Portal 802.11 MAC Relay Entity 802.11 MAC (AP STA) DSM DS AP STA BSS Non 802.11 Endpoint ESS DSM MAC 1999 including LLC LLC Higher Layer Entities 802.11 MAC Relay Entity LLC Higher Layer Entities 802.11 MAC (AP STA)

9 doc.: IEEE 802.11-04/1191r4 Submission November 2004 Mike Moreton, STMicroelectronicsSlide 9 Virtual Integrated LAN Virtual Portal 802.11 MAC Relay Entity 802.11 MAC (AP STA) 802.X LAN DS AP STA BSS 802.X Endpoint ESS 802.X MAC 1999 with 802.X DS LLC Higher Layer Entities 802.11 MAC Relay Entity LLC Higher Layer Entities 802.11 MAC (AP STA) Frame Routing

10 doc.: IEEE 802.11-04/1191r4 Submission November 2004 Mike Moreton, STMicroelectronicsSlide 10 Integrated LAN (ILAN) Portal 802.11 MAC Relay Entity 802.11 MAC (AP STA) DS AP STA BSS Non 802.11 Endpoint ESS ILAN MAC 1999 – portal in AP LLC Higher Layer Entities 802.11 MAC Relay Entity LLC Higher Layer Entities 802.11 MAC (AP STA) Frame Routing Portal ILAN MAC Frame Routing DS Frame Routing

11 doc.: IEEE 802.11-04/1191r4 Submission November 2004 Mike Moreton, STMicroelectronicsSlide 11 11i 802.11 MAC Relay Entity Port for STA 1 Frame Routing Port for STA 2 Frame Routing Port for STA 3 Frame Routing DS

12 doc.: IEEE 802.11-04/1191r4 Submission November 2004 Mike Moreton, STMicroelectronicsSlide 12 11i with broadcast 802.11 MAC Relay Entity Port for STA 1 Frame Routing Port for STA 2 Frame Routing Port for STA 3 Frame Routing DS Broadcast Port Frame Routing

13 doc.: IEEE 802.11-04/1191r4 Submission November 2004 Mike Moreton, STMicroelectronicsSlide 13 11i with broadcast, single MAC 802.11 MAC Relay Entity Port for STA 1 Frame Routing Port for STA 2 Frame Routing Port for STA 3 Frame Routing DS Broadcast Port Frame Routing 802.11 MAC

14 doc.: IEEE 802.11-04/1191r4 Submission November 2004 Mike Moreton, STMicroelectronicsSlide 14 11i with broadcast, single MAC, plus WDS 802.11 MAC Relay Entity Port for STA 1 Frame Routing Port for STA 2 Frame Routing Port for STA 3 Frame Routing DS Broadcast Port Frame Routing 802.11 MAC WDS Port 1 Frame Routing WDS Port 2 Frame Routing WDS Port 3 Frame Routing

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