Why 25GE is the Best Choice for Data Centers

Transcription

1 Why 25GE is the Best Choice for Data Centers Gilles Garcia Xilinx Director Wired Communication Business Santa Clara, CA USA April

2 Outline - update Data center drivers Why 25GE The need for 25GE Applications 25GE timeline 25GE ecosystem Summary 2

3 The Need for More Speed Unrelenting IP traffic growth Driven by mobile data and video WEB 2.0 data handled gigantic Source: 3

4 Multiple Drivers Service Providers Core Networking Doubling 18 mos Data Centers Servers Server I/O Doubling 24 mos - Let s not forget OPEX and CAPEX of WEB 2.0 companies - Increase server rack capacity and bandwidth 4

5 25Gb/s Ethernet Connectivity Enables similar topology as 40Gb/s & 10Gb/s TOR Switch ASIC 25G serdes Single 25Gb/s SFP28 port implementation or quad 25Gb/s QSFP28 breakout implementation possible 48-port 25G 4-port 100G Maximizes ports and bandwidth in ToR switch faceplate Server Dense rack server Within rack, less than 3m typical length Server a) 2.5X bandwidth compare to 10G and still through a single lane b) One lane vs 4 for 40GE (4x10G) c) Migration path from 10G to 25GE Server Server Server Server Break-out cable IEEE Call For Interest 25Gb/s Ethernet over a single lane for server interconnect July 2014 San Diego

6 Economical Considerations Data centers traffic is increasing exponentially, requiring higher bandwidth Running out of gas with 10GE Upgrading directly to 40G and 100G is cost prohibitive Optical modules cost prohibitive for WEB 2.0 companies 25G leverages existing (10G, single port/lane) infrastructure 2.5x performance per lane of twinax copper wiring between the server and the switch Reduces data center CapEx by providing a migration path from 10G to 25G links Provides easy migration path to 50GE (2x25GE) & 100G (4x25G) Special server Uplinks Another 2x performance improvement Page 6

7 25G Ethernet Standards Landscape 25G Consortium formed July 2014 Interoperability Ethernet specification for speeds between a server NIC and top of rack switch Accelerate rollout of products in next 12 to 18 months Royalty free Xilinx is a member Founding members: Arista, Broadcom, Google, Mellanox and Microsoft IEEE 25Gb/s Ethernet Study Group progressing Page 7

8 IEEE 25GE Standardization Timeline Nov 2014: 25GE Study Group => Task Force Feb 2015: IEEE 802.3by new 25G Ethernet draft standard 2016: expect standards to be finalized Short timeline because of reuse from 10GE, 100GE YE 2016

9 FPGAs for 25GE The official 25GE standard won t be published until YE 2016 Robust pre-standard market today, based on FPGA implementations Broadcom Switch sampling with GE ports FPGA designs can track changes in the standards as it progresses The following figures shows a typical 1 st generation implementation MAC/PCS Server 25GE Copper Cable 9

10 Virtex UltraScale 25GE to Ixia Tester OFC 2015 Demo Xilinx Virtex UltraScale VCU107 Board Xilinx Virtex UltraScale XCVU095 X c e l l o n - M u l t i s / 4 x 2 5 G E 3m Direct Attached Copper Cabling Page 10

11 Application #1: Nx25G Ethernet to PCI Express Base NIC Card Nx25GbE NIC card for data center applications Xilinx 25G low latency solution available today Increases system performance enabling chip to chip solutions utilizing world class 25Gb/s serial transceivers PCIe G3x8 Integrated PCIe Block DMA Memory Controller 25 GE MAC #1 x4 25 GE MAC #4 Q S F P 28 3 to 5m Copper 2Km Optical (Luxtera, Intel) Page 11

12 Application #2: Programmable NIC Packet processing NIC card for data center applications Xilinx Virtex UltraScale enable switchable interface between 4x10G Ethernet, 4x25G Ethernet and 100G Ethernet Flexible packet processing IP for customer custom logic PCIe G3x8 3 rd party IP OFF Classifier LOAD Lookup Prog Packet Parser 4x10GE 4x25GE 100GE PCIe MUX DMA MUX 25GbE Hard IP DMUX Eng Bypass Path DMUX Integrated Page 12 Redundancy not shown

13 25Gb/s Technologies Readily Available Page 13 IEEE Call For Interest 25Gb/s Ethernet over a single lane for server interconnect July 2014 San Diego

14 Summary Data center bandwidth explosion driving the 25GE 25GE promoted by large industry players (DC and OEMs) 25GE demand aligned with technology single lane transceiver 25GE ecosystem is ready for prime time Xilinx 25GE pre-standard MAC IP available Ixia 25GE tester announced at OFC 2015 QSFP28 copper cables available 25GE switch silicon sampling 25GE standards (25GE consortium & IEEE) ratification: GE is around the corner. 50GE MAC/PCS IP available from Xilinx Santa Clara, CA USA April

15 Thank You Santa Clara, CA USA April