3 PanelistsBrad Booth Director, Network Architecture Office of the CTO | Enterprise Solutions GroupChris Cole Director, Transceiver Engineering Finisar CorporationMatt Traverso Engineering Manager Transceiver Module Group, Cisco Member Ethernet Alliance Board of Directors
4 Optical vs. Copper Cost Comparison at 100G Brad Booth Director, Network Architecture Office of the CTO | Enterprise Solutions Group
5 Focus of Cost Comparison Leaf or SpineSwitchTop of RackSwitchArea ofFocus(Intra-rack)
6 Assumptions Intra-rack connections Cable Extrapolation of costs Maximum reach is 3 metersAll PHYs or modules use a four lane, 25 Gb/s interfaceAll links support 100 Gigabit EthernetCableCopper-based technologies cannot re-use existing cablesOptics would be able to use OM3/4 MMF or SMFExtrapolation of costsExisting technologies used as basisNot consideredBoard areaPower
8 Multi-Link Modules Extending Density Chris Cole Director, Transceiver Engineering Finisar Corporation8
9 I/O Lane Densities Does 10G Lane density stops at 10G? I/O Lane Rate0.625G2.5G10G25G50GYear10GbE16x4x (3G)1x40GbE4x1x (40G)100GbE10x2x400GbE8xDoes 10G Lane density stops at 10G?Does 40G Lane density stop at 40G?9
10 Port Densities NO Double Density SFP+: 48x 10GbE Smaller SFP+ (mSFP+) was not successfulIs 48 the port limit for pluggable modules?NOMulti-link I/OOIF MLGor IEEE PMA w/ Virtual LanesMulti-channel pluggable modulesMPO connector10
17 Logical / Protocol Interfaces Generic PictureTrading off the costs forCable vs. PMDReach Flexibility vs. Optimized ReachTrading off HandlingCables w/ “dongles” vs. connectorized cablesLogical / Protocol InterfacesMACMACPMDPMDCablePhysical Interfaces17
18 Socket vs. Pluggable Why Socket Why Pluggable Socketed design optimized for single reach & mediaFixed Port typePluggable design supports variety of reaches & mediaPluggable design enables field serviceabilityEnables a pay as you grow model18
19 DisclaimerThe views we are expressing in this presentation are our own personal views and should not be considered the views or positions of the Ethernet Alliance.
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