Wireless Internet WG 2012 2013 1 7 1 Wireless Internet 2012 3 2012 WiFi (2 ) WiFi (3 ) (4 ) IEEE802.11s (5 ) OpenWRT (6 ) OpenWRT (7 ) 2 WiFi 2.1 IIJ 1 WiFi 1 WiFi [1] 1 2.2 WIDE 150 180 WiFi 2012 3 1
2.3 2 WiFi Layer 2 Layer 3 1 2 2.4 166 3 5 8 WS Plenary WS Plenary BoF1 BoF2 50 Board WIDE 20 WS 2.5 2.5.1 Layer 2 Layer 2 ( 1) WiFi 802.11a 5GHz (36ch: 36ch 40ch: ) 802.11gn 2.4GHz (1 6 11ch) 9 AP-1 AP-10 AP-14 11 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; ) 2.5.2 Layer 3 WiFi Layer 3 WiFi NTTPC OpenWRT[4] ( 2) WiFi 802.11a 5GHz (36ch) 802.11gn 2.4GHz 1ch: AP-1 AP-4 AP-7 AP-8 6ch: AP-2 AP-6 AP-9 11ch: AP-3 AP-5 AP-10 11 AP-1 Layer 3 WiFi OLSRv2[2] 2
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: 3 5 21:00 Layer 2 2: 3 6 12:00 Layer 3 2.6 1 2 3 5 21:00 Layer 2 3 6 12:00 Layer 3 1 Layer 2 ( ) 2 Layer 3 next hop Layer 2 OLSRv2 Layer 3 AWPP WLC CAPWAP[3] Layer 3 OLSRv2 3
3: ( ) Workshop (WS) 200 (1015m 2 ) Plenary 150 (175m 2 ) BoF1 BoF2 Board AP-1 Layer 2 3 5 15:00 3 8 12:00 (Layer 3 3 6 12:00 17:00 ) Layer 3 3 6 12:00 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-7-14-1 AP-10-9-8-5-1 12 5 21 3: 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-10 2.7 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 2 802.11a 802.11g WLC (WLC5508) 4
Layer 2 4: http://member.wide.ad.jp/ shima/publications/20120306-wifi-mesh-takeda-route.m4v Layer L3 Mesh 3 Throughput http://member.wide.ad.jp/ shima/publications/20120306-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-10 12 5 21 5: Layer 3 [ : AP-1 AP-X) WLC 3 AP-9-8-5-1 5 Layer 3 Layer 3 Layer 2 iperf Layer 2 AP-1 AP iperf UP iperf AP-1 iperf DOWN Layer 2 2.8 2 Layer 2 OLSRv2 Layer 3 Layer 2 ( 4) Layer 3 5 1Mbps Layer 2 Layer 2 Layer 3 Layer 3 20 6 7 Layer 3 Layer 2 5
L3 3 5 3 6 3 7 3 8 ( 6: Layer 2 WiFi WiFi 2.9 3 6 2.8 7: Layer 3 2.10 Layer 2 6
Layer 3 3 WiFi 2012 3 WIDE L2 OpenWRT OLSR L3 2 9 9 12 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 ( 76 116 89.77 ) WLC MIB MIB WiFi (AP) 13 AP AP AP WS AP AP SNR 30 20 AIR11 AIR12 1 AIR11 AIR07 SNR 9/4 AIR05 12: 2012 9 WIDE 802.11g/n 802.11b 802.11b 802.11g 802.11g 3 802.11b 802.11g 1 6 11 WPA-PSK-AES PSK 802.11a 802.11s 802.11a 36ch 40ch channel bonding ESSID 5 5 ID 2 ID 7 5 VLAN ESSID 9/5 7
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 2 1. 2. 2 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
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 1 17 16:00 18:00 WLC 1 200MB 2 560MB 15: WLC 100MB 280MB 17:13 550MB 6 7 90 90.53Mb/s 1018.47MB 9
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 5:00 0.98 593.39 64.38 9/4 5:00 9/5 5:00 0.96 543.80 98.87 9/5 5:00 9/6 5:00 0.58 1018.47 134.96 9/6 5:00 9/6 12:00 1.41 391.23 47.47 (9/3 14:00 9/6 12:00) 0.58 1018.47 97.80 17: WLC 8 9/3 20:14 AP 9 9/6 11:00 AP 10 (MB) 9/3 14:00 9/4 5:00 1.01 612.98 67.85 9/4 5:00 9/5 5:00 0.84 573.42 104.81 9/5 5:00 9/6 5:00 0.10 1016.19 138.90 9/6 5:00 9/6 12:00 1.44 346.97 45.58 (9/3 14:00 9/6 12:00) 0.10 1016.19 101.73 ESSID AP 18 19 120 140 unknown ESSID 9/5 21:00 unknown 11 MAC OUI 10
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 AIR02 50 95 8: 9/3 14:00 9/4 5:00 118 9/4 5:00 9/5 5:00 132 9/5 5:00 9/6 5:00 210 9/6 5:00 9/6 12:00 107 133 AP MAC 210 Buffalo Buffalo MAC Buffalo 30 2 9/5 21:20 WS Buffalo WZR-HP-AG300H Open- WRT 60 10: 9/6 11:00 AP AP AIR10 4 AIR11 11 AIR12 39 AIR02 44 98 ( 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
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 4 4.1 SNR 20 2 Cisco Aironet 3500 (AP01 AP02) SNR SNR SNR 12
14: Attenuation vs Throughput 60 45 Attenuation to SNR SNR on AP01 SNR on AP02 Throughput (Mbps) 300 225 150 75 1500 1280 768 256 64 SNR 30 0 40 42 44 45 46 47 48 49 50 55 60 65 70 75 80 Attenuation (db) 15 0 40 45 50 55 60 65 70 75 80 85 90 Attenuation (db) 20: SNR 21: 21 1500 1280 768 256 64 5 IEEE802.11a MCS (Modulation and Coding Scheme) Index 15 13
16: AIR02 SNR 20 21 4.2 Cisco Aironet 3500 IEEE802.11a AWPP (Advanced Wireless Path Protocol; ) IEEE802.11 MCS index 15 11 9 8 1 2 75% AWPP OLSR 1 3 14
18: ESSID 19: AP 15
Throughput (Mbps) 300 225 150 Multihop MCS #15 (64-QAM, 300Mbps) 40Mhz 75 1500 1280 1024 768 512 256 128 64 Throughput (Mbps) Multihop MCS#11 (16-QAM, 120Mbps) 40MHz 120 90 60 30 0 1 2 3 Hop Count 0 1 2 3 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 60 30.0 Throughput (Mbps) 45 30 15 Throughput (Mbps) 22.5 15.0 7.5 0 1 2 3 Hop Count 0 1 2 3 Hop Count (c) MCS Index 9 (QPSK, 60Mbps) (d) MCS Index 8 (BPSK, 30Mbps) 22: 16
5 IEEE802.11s 2012 9 WIDE Cisco Layer 2 IEEE802.11s 2011 7 OpenWRT 2 802.11s 6 OpenWRT Wireless Internet OpenWRT[4] OpenWRT Linux Linux WZR- 300 1 OpenWRT OpenWRT 2012 6 14 ( ) 9:00-17:00 @ WZR-300 Open- WRT Wireless Internet wiki WIDE https://wi.iijlab.net/trac/wi-members/ 2012 8 6 ( ) 9:00-17:00 @ OpenWRT bonding 1 http://buffalo.jp/product/wireless-lan/ap/wzr-300hp/ 7 OpenWRT OpenWRT 9 9 4 5 2 WZR- 300 OpenWRT 10 OpenWRT ( OpenWRT ) OpenWRT OpenWRT OpenWRT OpenWRT OpenWRT WZR-300 ARM ARM OpenWRT OpenWRT OLSR 3 OLSR 17
IEEE 802.11s 3 OLSR 2 IEEE802.11s IEE802.11s OpenWRT 5 OpenWRT OpenWRT 10 OpenWRT assoc WZR-300 11a/11g 2 1 20 [1],.., Vol. 52, No. 9, pp. 1068 1069, September 2011. [2] Thomas Heide Clausen, Christopher M. Dearlove, Philippe Jacquet, and Ulrich Herberg. The Optimized Link-State Routing Protocol version 2. IETF, March 2012. 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 2009. RFC5415. [4] OpenWRT developers. OpenWRT. http://openwrt.org/. 8 2012 L2 18