2.3 2 WiFi Layer 2 Layer WS Plenary WS Plenary BoF1 BoF2 50 Board WIDE 20 WS Layer 2 Layer 2 ( 1) WiFi a 5GHz (36c
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- ゆたか こやぎ
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1 Wireless Internet WG Wireless Internet WiFi (2 ) WiFi (3 ) (4 ) IEEE802.11s (5 ) OpenWRT (6 ) OpenWRT (7 ) 2 WiFi 2.1 IIJ 1 WiFi 1 WiFi [1] WIDE WiFi
2 2.3 2 WiFi Layer 2 Layer WS Plenary WS Plenary BoF1 BoF2 50 Board WIDE 20 WS Layer 2 Layer 2 ( 1) WiFi a 5GHz (36ch: 36ch 40ch: ) gn 2.4GHz (1 6 11ch) 9 AP-1 AP-10 AP AP-1 Wireless LAN Controller (WLC) 1 ( 20m ) 9 Pleanry 70 AP-10 (3 5 15:00-18:00 6 ) AP-4 WS Pleanry 10 Layer 2 WiFi AWPP (Advanced Wireless Path Protocol; ) Layer 3 WiFi Layer 3 WiFi NTTPC OpenWRT[4] ( 2) WiFi a 5GHz (36ch) gn 2.4GHz 1ch: AP-1 AP-4 AP-7 AP-8 6ch: AP-2 AP-6 AP-9 11ch: AP-3 AP-5 AP AP-1 Layer 3 WiFi OLSRv2[2] 2
3 1: Layer 2 Cisco AIR-2125-K9 Wireless LAN Controller Y=600,000 Cisco AIR-1262N-Q-K9 Wireless LAN Access Point Y=78,000 Cisco AIR-PWRINJ4= Wireless LAN Access Point PoE adapter Y=10,000 Cisco WS-C3560CG-8PC-S PoE Ethernet Switch Y=90,000 2: Layer 3 Wireless LAN Access Point ( OpenWRT ) MR1200 ( ) 1: :00 Layer 2 2: :00 Layer :00 Layer :00 Layer 3 1 Layer 2 ( ) 2 Layer 3 next hop Layer 2 OLSRv2 Layer 3 AWPP WLC CAPWAP[3] Layer 3 OLSRv2 3
4 3: ( ) Workshop (WS) 200 (1015m 2 ) Plenary 150 (175m 2 ) BoF1 BoF2 Board AP-1 Layer : :00 (Layer :00 17:00 ) Layer :00 17:00 4 Layer 2 60 (100m 2 ) L2 Mesh Throughput (backhaul 20Mhz) 60 (100m 2 ) 20 (100m 2 ) 18Mbps 14Mbps 9Mbps 5Mbps 0Mbps Down AP-1 AP AP : Layer 2 [ : 20MHz] [ : 1 AP-1 AP-X 2) 50Mbps 38Mbps 25Mbps 13Mbps 0Mbps Up L3 Mesh Throughput Down Up AP-2 AP-3 AP-4 AP-5 AP-6 AP-7 AP-8 AP-9 AP WiFi iperf TCP 3 4 Layer 2 Layer 2 2 WiFi 1 WLC AP-10 UP iperf ( : Layer 2 [ : 40MHz] [ : 1 AP-1 AP-X 2) iperf iperf ) DOWN Layer MHz a g WLC (WLC5508) 4
![20MHz] [ : 1 AP-1 AP-X 2) 50Mbps 38Mbps 25Mbps 13Mbps 0Mbps Up L3 Mesh Throughput Down Up AP-2 AP-3 AP-4 AP-5 AP-6 AP-7 AP-8 AP-9 AP-10 2.](/docs-images/45/20577500/images/page_4.jpg "7 WiFi iperf TCP 3 4 Layer 2 Layer 2 2 WiFi 1 WLC 1 3 2 AP-10 UP iperf ( 12 5 21 4: Layer 2 [ : 40MHz] [ : 1 AP-1 AP-X 2) iperf iperf ) DOWN Layer 2 2 40MHz 3 4 2")
5 Layer 2 4: shima/publications/ wifi-mesh-takeda-route.m4v Layer L3 Mesh 3 Throughput shima/publications/ wifi-mesh-uesugi-route.m4v 50Mbps 38Mbps 25Mbps 13Mbps 0Mbps Down Up AP-2 AP-3 AP-4 AP-5 AP-6 AP-7 AP-8 AP-9 AP : Layer 3 [ : AP-1 AP-X) WLC 3 AP Layer 3 Layer 3 Layer 2 iperf Layer 2 AP-1 AP iperf UP iperf AP-1 iperf DOWN Layer Layer 2 OLSRv2 Layer 3 Layer 2 ( 4) Layer 3 5 1Mbps Layer 2 Layer 2 Layer 3 Layer Layer 3 Layer 2 5
6 L ( 6: Layer 2 WiFi WiFi : Layer Layer 2 6
7 Layer 3 3 WiFi WIDE L2 OpenWRT OLSR L AP Cisco AP3502i( AP AIR ) LAN Cisco WLC5508( WLC ) AP WLC 2 SW1 (Buffalo LSW2-GT-8NSRR) SW1 ( ) SW2 WLC SW1 1 SW1 PC 90 ( ) WLC MIB MIB WiFi (AP) 13 AP AP AP WS AP AP SNR AIR11 AIR12 1 AIR11 AIR07 SNR 9/4 AIR05 12: WIDE g/n b b g g b g WPA-PSK-AES PSK a s a 36ch 40ch channel bonding ESSID 5 5 ID 2 ID 7 5 VLAN ESSID 9/5 7
8 8: ( 80m 50m) 5: ESSID ESSID v6only-firewall firewall IPv6 only v6only-fallback IPv6 only v6only-basic IPv6 only v6only-sa46t-at SA46T-AT v46-olsr StarBED OLSR VLAN ESSID WLC IPv4 IPv6 IPv4/IPv6 DHCP IPv6 RA Cisco WLC IPv4 DHCP IPv6 RA AP ( 90 ) 1 ( 30) AP 1 WS 14 AIR01 AIR02 2 AIR11 AIR07 SNR 10 SNR WLC MIB ifinoctets ifoutoctets 15 ifinoctets ifoutoctests AP CAPWAP WLC ( ) WLC 8
9 AP-8 AP-6 AP-5 AP-9 AP-2 AP-4 AP-7 AP-10 AP-14 AP-1 GW AP-3 9: Layer 2 WiFi CAPWAP ifinoctets ifoutoctets 9/4 16:00 16:10 17:20 2 (AIR02) 1 (AIR01) 6 MIB 16 AIR11 SNR AIR07 16 SNR :00 18:00 WLC 1 200MB 2 560MB 15: WLC 100MB 280MB 17:13 550MB Mb/s MB 9
10 AP-8 AP-6 AP-5 AP-9 AP-2 AP-7 AP-10 AP-14 AP-4 AP-1 WLC AP-3 10: Layer 2 WiFi 6: (MB) 9/3 14:00 9/4 5: /4 5:00 9/5 5: /5 5:00 9/6 5: /6 5:00 9/6 12: (9/3 14:00 9/6 12:00) : WLC 8 9/3 20:14 AP 9 9/6 11:00 AP 10 (MB) 9/3 14:00 9/4 5: /4 5:00 9/5 5: /5 5:00 9/6 5: /6 5:00 9/6 12: (9/3 14:00 9/6 12:00) ESSID AP unknown ESSID 9/5 21:00 unknown 11 MAC OUI 10
11 AP-8 (Ch 1) AP-6 (Ch 6) AP-5 (Ch 11) AP-4 (Ch 1) AP-9 (Ch 6) AP-10 (Ch 11) AP-7 (Ch 1) AP-2 (Ch 6) AP-3 (Ch 11) AP-1 (GW) (Ch 1) 11: Layer 3 WiFi 7: 9/3 14:30 18:00 9/4 16:10 17:50 9/5 16:10 17:30 9/5 21:00 22:00 9/6 9:00 12:00 9: 9/3 20:14 AP AP AIR10 20 AIR11 15 AIR12 10 AIR : 9/3 14:00 9/4 5: /4 5:00 9/5 5: /5 5:00 9/6 5: /6 5:00 9/6 12: AP MAC 210 Buffalo Buffalo MAC Buffalo /5 21:20 WS Buffalo WZR-HP-AG300H Open- WRT 60 10: 9/6 11:00 AP AP AIR10 4 AIR11 11 AIR12 39 AIR ( AIR03 AIR04 MIB ) AIR04 2 PC Iperf (TCP) 5.65(Mb/s) 1.49(Mb/s) 3.42(Mb/s) (21:25) AP 12 MIB MIB 11
12 13: AP 11: MAC OUI MAC 162 Apple Computer 111 Buffalo Inc. 43 Intel Corp. 9 Murata Manufacturing 6 Sony Ericsson Mobile Communications AB 5 SHARP Corporation 12: 9/5 21:25 AP AP AIR01 32 AIR03 31 AIR04 68 MIB SNR 20 2 Cisco Aironet 3500 (AP01 AP02) SNR SNR SNR 12
13 14: Attenuation vs Throughput Attenuation to SNR SNR on AP01 SNR on AP02 Throughput (Mbps) SNR Attenuation (db) Attenuation (db) 20: SNR 21: IEEE802.11a MCS (Modulation and Coding Scheme) Index 15 13
14 16: AIR02 SNR Cisco Aironet 3500 IEEE802.11a AWPP (Advanced Wireless Path Protocol; ) IEEE MCS index % AWPP OLSR
15 18: ESSID 19: AP 15
16 Throughput (Mbps) Multihop MCS #15 (64-QAM, 300Mbps) 40Mhz Throughput (Mbps) Multihop MCS#11 (16-QAM, 120Mbps) 40MHz Hop Count Hop Count (a) MCS Index 15 (64-QAM, 300Mbps) (b) MCS Index 11 (16-QAM, 120Mbps) Multihop MCS#9 (QPSK, 60Mbps) 40MHz Multihop MCS#8 (BPSK, 30Mbps) 40MHz Throughput (Mbps) Throughput (Mbps) Hop Count Hop Count (c) MCS Index 9 (QPSK, 60Mbps) (d) MCS Index 8 (BPSK, 30Mbps) 22: 16
17 5 IEEE802.11s WIDE Cisco Layer 2 IEEE802.11s OpenWRT s 6 OpenWRT Wireless Internet OpenWRT[4] OpenWRT Linux Linux WZR OpenWRT OpenWRT ( ) WZR-300 Open- WRT Wireless Internet wiki WIDE ( ) OpenWRT bonding OpenWRT OpenWRT WZR- 300 OpenWRT 10 OpenWRT ( OpenWRT ) OpenWRT OpenWRT OpenWRT OpenWRT OpenWRT WZR-300 ARM ARM OpenWRT OpenWRT OLSR 3 OLSR 17
18 IEEE s 3 OLSR 2 IEEE802.11s IEE802.11s OpenWRT 5 OpenWRT OpenWRT 10 OpenWRT assoc WZR a/11g [1],.., Vol. 52, No. 9, pp , September [2] Thomas Heide Clausen, Christopher M. Dearlove, Philippe Jacquet, and Ulrich Herberg. The Optimized Link-State Routing Protocol version 2. IETF, March draft-ietf-manet-olsrv2-14. [3] Pat R. Calhoun (editor), Michael P. Montemurro (editor), and Dorothy Stanley (editor). Control And Provisioning of Wireless Access Points (CAPWAP) Protocol Specification. IETF, March RFC5415. [4] OpenWRT developers. OpenWRT L2 18
![The Optimized Link-State Routing Protocol version 2. IETF, March 2012. draft-ietf-manet-olsrv2-14. [3] Pat R. Calhoun (editor), Michael P.](/docs-images/45/20577500/images/page_18.jpg "Montemurro (editor), and Dorothy Stanley (editor). Control And Provisioning of Wireless Access Points (CAPWAP) Protocol Specification. IETF, March 2009.")
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