% 100 50 1 * Lightwave 98/4, M. Shariff, Cisco systems Inc. 1996 1997 1998 1999 2000 2001 = *

APT Office Home MAN POP POP MAN APT Office Home Access Network Access Network?! DWDM OXC MPLS, MPLamdaS

ADSL MODEM DSLAM NAS : Router : Switch PC Ethernet SDH Ethernet : Ethernet : SDH IP 95%Ethernet NIC IP SDH 10 Mbps FT1, T1, E1, T3 TDM

Metro Ethernet ( : 2005 20Mbps) Ethernet Ethernet 1 Gbps : 19986 10 Gbps : 20023 LAN PHY : 10Gbps WAN PHY : 9.58Gbps STM-64match Full Duplex Ethernet CSMA/CD Half Duplex CSMA/CD (10Mbps:2.5km, 100Mbps:100m, 1Gbps:100m)

Metro Ethernet Ethernet MAN 10/100 Mbps : 15 km ~ 40 km 1 Gbps : ~150 km 10 Gbps : 40 km Ethernet VLAN, MPLS VPN IEEE802.1p/Q, Diffserv

Metro Ethernet Ethernet Rate Limiting (L2, L3, L4), IP flow flow Metro-Ethernet

Metro Ethernet Ethernet Link Aggregation : IEEE802.3ad Load sharing STP(Spanning Tree Protocol) : IEEE802.1d Broadcast Broadcast storm Loop-Prevention Protocol Blocking Link Loop Redundancy Topology STP Topology : 50 RSTP(Rapid Spanning-Tree Protocol) : IEEE802.1w STP Protocol : < 1 sec RPR(IEEE802.17) : 2003.3

Ethernet 1973 1980 IEEE 802.3 : 1Mbps, 10Mbps, 100Mbps, 1Gbps(1998), 10Gbps(2002) :,, : :100m :500m ~ 2.8km :550m ~ 40km

Ethernet Frame 7B 1B 6B 6B 2B Preamble SFD DA SA Length/Type 46B ~ 1500B Data PAD 4B FCS Preamble bit SFD (Start of Frame Delimiter) DA (Destination Address) & SA (Source Address) 6 byte frame Length/Type : 2 Byte ; Data Data & PAD : 46 Byte ~ 1500 Byte Target Data FCS(Frame Check Sequence) 4 byte CRC(Cyclic Redundancy Check)

IEEE 802.1QVLAN Ethernet Frame Ethernet HeaderVLAN -Tag 7B 1B 6B 6B 4B 2B Preamble SFD DA SA VLAN Length -Tag /Type 46B ~ 1500B Data PAD 4B FCS 16 bit 3 bit 1 bit 12 bit TPID : Tag Protocol Identifier, (8100) CFI : Canonical Format Identifier 802.3 MAC format VID : Virtual LAN Identifier 0 ~ 4094 VLAN-Tag : TPID Priority CFI VID Priority QoS/CoS ex) 1: Control Packet, 2:Voice, 3:HTTP, 4:FTP VPN VLAN ID LAN segment

IEEE 802.3 (** 10 Gbps ) 10Base-T 10Base-5 10 Mbps 10Broad-36 10Base-F 100 Mbps 1 Gbps 10 Gbps 100Base-T 100Base-F 1000Base-CX 1000Base-T 1000Base-SX 1000Base-LX 1000Base-LX 10GBase-S 10GBase-L 10GBase-L 10GBase-E twisted pare cable coaxial cable coaxial cable MMF(850 nm) twisted pare cable MMF(1300 nm) STP CAT 5 UTP MMF(850 nm) MMF(1300 nm) SMF(1300 nm) MMF(850 nm VCSEL) SMF(1300 nm F-P) SMF(1300 nm DFB) SMF(1550 nm DFB) 100 m 500 m 2.8 km 2 km 100 m 2 km 25 m 100 m 550 m 550 m 5 km 300 m 2 km 10 km 40 km

Metro Ethernet (SDH, ATM ~1/10),, VLAN Tag CoS VPN

: Dell Oro Group, Yankee Group, Yipes, Extreme Networks, Juniper Networks : 5 Hub10

1999 :, T-LAN : 2000 Telseon, Yipes, XO Communication, DAVNET : Telstra, Pac Bell, Quest, UUNET, AT&T, Telecom Italia, WIND, NTT Comm. : SDH, ATM : SDH ~ 1/3 : kbps or Mbps 1 Gbps

Ethernet PC :, 20019 450 /10Mbps/(40% 270 ) : PowerNet, 20018 : PC : : 300,000, PC1~80: 15,000/, 81 :10,000/ (ex.) PC 85 :155 : PC 720 siteethernet

EFM(Ethernet First Mile)

EFM(Ethernet First Mile) Study Group : : Ethernet 200011start 20017IEEE 802.3ah 20039 Ethernet-PON Optical PtP Ethernet Network Ethernet/copper 10 km @ 1 Gbps OAM&P

Optical Ethernet (I)

Optical Ethernet (II)

Optical Ethernet (III) ONU ONU OLT ONU ONU

Transceiver speed at ONU Transceiver Number TDMA and Ranging Protocol Power Supplying problem Optical Cable Save Curb Switched Ethernet Low(100Mbps) 2+2N No Yes Yes Ethernet-PON High(1Gbps) 1+N Yes No Yes Who will be winner? Who is cost effective and stable?

E-PONApplication OLT ONU DHCP : APT OLT Rate Limiting : OLT ONU

10 Gigabit Ethernet

10Gigabit Ethernet Preserve the 802.3 Ethernet frame format at the MAC client service interface Support full-duplex operation only Support proposed standard P802.3ad Define two families of PHYs LAN PHY, operating at a data rate of 10.000 Gbps WAN PHY, operating at a data rate compatible with the payload rate of OC-192c/SDH VC-4-64c At least 100 m over installed MMF At least 300 m over MMF At least 2, 10, 40 km over SMF

10 Gigabit Ethernet

10 S(Short), L(Long), E(Extra Long) wavelength, 850nm, 1300nm, 1550nm R : LAN 64B/66B W : WAN 10GBASE-R SONET/ SDH WIS X : 1,310 4 WWDM, 8B/10B CODEC

LAN 10 Gigabit Ethernet G/E 10GBase -SR, -LX4, -LR 10GBase -LR, -LX4, -LW G/E 10GBase -SR, -LX4, -LR 10GBase-SR 10GBase -LR, -LX4, -LW Server Farm

MAN 10 Gigabit Ethernet 10GBase -SR, -SW KORNET Backbone 10GBase -LR, -LX4,-LW 10GBase -LX4, -LR, -ER, -LW, -EW 10GBase-SR CDN Server 10GBase -LR, -LX4, -LW Metro Ethernet (MPLS) 10GBase -LR, -LX4, -LW 1000Base-LX 10GBase -LR, -LX4, -LW

WAN 10 Gigabit Ethernet 10GBase -LX4, -LR, -ER, -LW, -EW 10GBase -SR, -SW 10GBase -LX4, -LR, -ER, -LW, -EW 2.5G-, 10G-base N channel DWDM 10GBase -SR, -SW National Backbone

Ethernet FTTH

Ethernet FTTH Project : DVD, CPE Ethernet Access Network Project Standford Palo Alto FTTH CA*net3GITH(Gigabit to the Home) U s Communication NTT

Palo Alto Ethernet FTTH Project : Palo Alto Mountain View : Standford Univ. Silicon Valley Engineer : (1997 ~), (2000. 3 ~) : Central office --- Remote node : Bus using SMF Remote node --- Home : Star using MMF : 1Gbps + 10M or 100Mbps Ethernet : 10(1000 /1Giga Switch) : ($70 for 10Mbps, $180 for 100Mbps) :, VOD, VoIP, : Chicago, Seattle

Palo Alto FTTH Trial Topology

CA*net3 Project Project Backbone Optical Internet GITx GITS(Gigabit Internet to the School) 1999 6 Ethernet(1Gbps + 10/100 Mbps) GITH(Gigabit Internet to the Home) 2000, Ethernet : 1 or 10 Gbps + 100 Mbps : HFC > GITH > xdsl or Cable Modem : Optical fiber, UTP5 Application : DVD or HDTV video(~40 Mbps), Mega-email, Home cache etc.

750 ( ) : 2001. 3. 1 2000. 10 : : Ethernet FTTH/FTTO : 2001.3 :, 2001.4 :,, 2001.10 : 23, 2002 : 30, 2003 : : 100 Mbps

nternet ackbone Node sitedethernet No Rate Limiting

100Mbps 6,100 4900 300 900 3000 3 PC 5 + PC 10 100Mbps 11,000 9800 300 900 3000 5 + PC 10 6000 24 : 300/ 1download : 250

NTT : Ethernet FTTH : 10 Mbps, 100 Mbps :, : 200012: 13000/ 20018: 5000/ ( ADSL 3800 /) : ~ *** e-japan : 2005 1000 100Mbps, 3000 10Mbps

Metro Ethernet

Metro Ethernet : Router : Switch Metro-core 1G/10G WDM Giga/Tera Router KORNET MPLS Metro Network ~1Gb/s Metro-Access 1G/10Gbps RPR CDN server E-PON Building Ethernet/xDSL ~1Gb/s Building APT PC LAN

Summary, Rate limiting. RPR, RSTP. LAN MAN, WAN. EFM Fiber FTTH.