CustomerCustomer andand MarketMarket Issues:Issues: 1010 GbpsGbps EthernetEthernet onon CategoryCategory 55 oror BetterBetter CablingCabling Bruce Tolley Cisco Systems, Inc [email protected] 1 IEEE 802.3 Interim January 2003 GbEGbE SwitchSwitch Ports:Ports: FiberFiber vsvs CopperCopper Ports (000s) 802.3ab 8,000 STD 7,000 6/99 6,000 802.3z 5,000 STD Total 4,000 6/98 Fiber 3,000 Copper 2,000 1,000 0 1997 1998 1999 2000 2001 2002 2 Source: Dell’Oro 2002 IEEE 802.3 Interim January 2003 SuccessSuccess ofof GbEGbE onon CopperCopper • It is 10/100/1000 Mbps • It runs Cat5, 5e and 6 • It does not obsolete the installed base • It does not require both ends of the link to be upgraded at the same time 3 IEEE 802.3 Interim January 2003 1010 GbEGbE LayerLayer DiagramDiagram Media Access Control (MAC) Full Duplex 10 Gigabit Media Independent Interface (XGMII) or 10 Gigabit Attachment Unit Interface (XAUI) CWDM Serial Serial LAN PHY LAN PHY WAN PHY (8B/10B) (64B/66B) (64B/66B + WIS) CWDM Serial Serial Serial Serial Serial Serial PMD PMD PMD PMD PMD PMD PMD 1310 nm 850 nm 1310 nm 1550 nm 850 nm 1310 nm 1550 nm -LX4 -SR -LR -ER -SW -LW -EW Source: Cisco Systems 4 IEEE 802.3 Interim January 2003 Pluggable 10 GbE Modules: The Surfeit of SKUs 10GBASE XENPAK X2/XPAK XFP PMDs XAUI XAUI -SR X X -LR X X X -ER X X -LX4 X X -CX4 X X -T X X X CWDM, X X X DWDM Please: No new pluggable for 10GBASE-T! 5 IEEE 802.3 Interim January 2003 CumulativeCumulative WorldWorld--widewide ShipmentsShipments 1300 1200 Cat 7 Cat5 Cat5 1100 Cat 6 59% 51% 1000 Cat 5e 900 Cat 5 800 700 600 actual Outlets forecast (millions) 500 400 300 200 100 0 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 6 Source: BSRIA IEEE 802.3 Interim January 2003 EstimatedEstimated WorldWorld--widewide InstalledInstalled BaseBase EndEnd CYCY 20022002 Note: Ignored Cat 3 total outlets 680 million Cat 5e/ (~7% installed base) new Class D will inflate Cat 5 share 45% Cat 5/ old Class D Cat 7/Class F 0.2% 41% FTTD Cat 6/Class E 0.4% 13% Source: LAN Technologies (2003) 7 IEEE 802.3 Interim January 2003 1010 GbEGbE CopperCopper ApplicationsApplications • Large majority of 10 GbE copper ports will be enterprise for deployment in-building –Constrained by installed base and by structured cabling standards • Significant and material portion will be data center deployment –Includes switch to server, switch to switch in rack or same room –Includes switch to DWDM in same room • Low-cost 1000BASE-T to the desk is key market driver 8 IEEE 802.3 Interim January 2003 10GBASE10GBASE--TT ApplicationsApplications Application 10GBASE-fiber 10GBASE-T 10GBASE-CX In-building No Yes No horiz copper In building Yes LR on SM Most likely No No vertical Need -LX4 for MM Data Yes: -SR high end if Yes: But not for 2 YES: XENPAK, center/Server cheap enough or 3 years. 15 m X2, XPAK slots farms not far enough External Not likely Yes in future Yes backplane for stackables Outside bldg Yes No No 9 IEEE 802.3 Interim January 2003 DataData CentersCenters:: ServiceService PointPoint ArchitectureArchitecture SAN SAN NAS NAS Directory LB SS VPL Internet NF CachingW Streaming .. ... Tier-3: Backend Tier-2: Application Tier-1: Web Tier-0: .Network ? Web services ? Network services ? Large Databases ? Networked Databases ? XML processing ? Data Warehousing ? E-mail ? JSP applications ? OLTP ? File/Print 10 Source: S. Muller, Sun IEEE 802.3 Interim January 2003 10GBASE10GBASE--TT • Priority 1 –100 meters on four pairs of Category 5 or better cabling –Preserve existing investments in datacenter and structured cabling • Priority 2 –10GBASE-T PHY that can support autonegotiation 1Gbps/10Gbps –Support for XAUI (the installed base of 1/10 GbE switches will have XAUI slots) • Priority 3 –Include support for short reach applications (less than 100 meters) 11 IEEE 802.3 Interim January 2003 ConclusionsConclusions Request SG to study technical feasibility of 1) Support for Category 5 2) Support for Category 5e 3) Support for XAUI electrical interface 4) Support for negotiation between 1 and 10 Gbps 12 IEEE 802.3 Interim January 2003.