Transcript HSE Overview Presentation
Current State of Affairs For Data Center Convergence (DCB) Ethernet Alliance Datacenter Subcommittee Hosts Henry He, Ixia Corp.
Chauncey Schwartz, QLogic Corp.
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Agenda • Ethernet Alliance Overview • Data Center Bridging (DCB) Building Blocks • State of Industry Standards • Need for Testing 2
THE 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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The Ethernet Alliance • A global community of end users, system vendors, component suppliers and academia • Representing the spectrum of the Ethernet industry • Activities – Technology and standards incubation – Industry consensus building – Education – Interoperability testing and demonstration – Certification 25% 5% 37% 86 member companies Carrier & end user Component Vendors 33% Academia & Affiliates System Vendors 4
CONVERGED DATA CENTER
What are the building blocks?
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Today’s Environment LAN SAN IPC • Separate networks for each traffic type – LAN, SAN, IPC • Unique infrastructure – Server adapters – Fabric switches – Cables • Separate management schemes • Inherently costly and complicated 6 4/28/2020
What is Data Center Bridging?
• Terminology – Enhanced Ethernet – Datacenter Ethernet – Converged Enhanced Ethernet • Lossless vs. lossy – Ethernet = Lossy (expected to “drop” packets when busy) – Fibre Channel = Lossless (expected to not lose information) – SCSI does not recover quickly from lost packets • Enhanced Ethernet is lossless – New features have been added to prevent dropped packets – Better suited for transporting SCSI traffic 7
Enabling the Converged Network IEEE 802.1 Qaz Enhanced Transmission Selection Capability Exchange IEEE 802.1 Data Center Bridging IEEE 802.1 Qbb Priority Flow Control IEEE 802.1 Qau Congestion Notification Fibre Channel Over Ethernet Fibre Channel over Ethernet (FCoE) FCoE Initialization Protocol (FIP) iSCSI over DCB iWARP RDMA over Enhanced Ethernet (RoCE) 8
• • • • • Data Center Bridging
Pause IEEE 802.3X – defines link level flow control and specifies protocols, procedures and managed objects that enable flow control full
‐
duplex Ethernet links to prevent lost packets Priority Flow Control (PFC) IEEE 802.1Qbb – enhances pause mechanism to achieve flow control of 8 traffic classes by adding priority information in the flow control packets (
http://www.ieee802.org/1/files/public/docs2008/bb-pelissier-pfc-proposal-0508.pdf
)
Enhanced Transmission Selection (ETS) IEEE 802.1Qaz – assigns traffic classes into priority groups and manages bandwidth allocation and sharing across priority groups (
http://www.ieee802.org/1/files/public/docs2008/az-wadekar-ets-proposal 0608-v1.01.pdf
) Data Center Bridging Exchange Protocol (DCBX) IEEE 802.1Qaz – “Advertisement/configuration” to allow devices to automatically exchange DCB link capabilities (
http://www.ieee802.org/1/files/public/docs2008/az-wadekar-dcbx-capability-exchange discoveryprotocol-1108-v1.01.pdf
)
Congestion Notification (CN) IEEE 802.1Qau – allows bridges to send congestion signals to end-systems to regulate the amount of network traffic
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DCB Environment
DCB
(FCoE, iSCSI, iWARP, RoCE) • LAN, SAN, and IPC traffic converged onto a single Ethernet network!
• Reduced hardware, power, cooling, and management costs • Requires a new class of IO adapter – a DCB enabled adapter 10
• Deployment Process
Begin:
Not Converged – Separate NIC & HBA LAN
NIC HBA
SAN/NAS LAN FC / iSCSI 11
Deployment Process •
Today:
Not Converged – Separate NIC & HBA • Converged edge – DCB adapters – DCB “top of rack” switch LAN/NAS
DCB Adapter
DCB / FCoE Switch SAN/NAS LAN FC / iSCSI 12
Deployment Process •
Today:
Not Converged – Separate NIC & HBA • Converged edge – DCB adapters – DCB “top of rack” switch • Converged core – Expanded converged network – Native attach storage Core DCB/FCoE Switch Converged Network Edge DCB/FCoE Switch
DCB Adapter
LAN FC / iSCSI FCoE iSCSI DCB 13
Deployment Process • •
Today:
Not Converged – Separate NIC & HBA • Converged edge – DCB adapters – DCB “top of rack” switch • Converged core – Expanded converged network – Native attach storage
Goal:
Converged network – Multiple storage technologies over Ethernet LAN
DCB Adapter
Converged Network FCoE / iSCSI DCB / iWARP / RoCE 14
• • • • • Deployment Process
Today:
Not Converged – Separate NIC & HBA
Step 1:
Converged edge – DCB adapters – DCB “top of rack” switch
Step 2:
Converged core – Expanded converged network – Native attach storage
End Goal:
Converged network – Multiple storage technologies over Ethernet
Process Benefit
: Provides the building blocks to upgrade a portion of or all data center network assets into a converged infrastructure LAN
DCB Adapter
Converged Network FCoE / iSCSI DCB / iWARP / RoCE 15
Quick reminder on Data Center Bridging • Unifying I/Os and networks over Ethernet • Enhanced switches to support lossless Ethernet • Essentially, improved Ethernet that is suitable for data center applications • Use cases support multiple storage protocols and LAN, and high performance computing 16
STATE OF THE STANDARDS
What Is Going On Now?
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A few clarifications… • Pre-standard does NOT imply proprietary or lack of interoperability • Not ALL DCB protocols must be deployed together to enable a DCB environment 18
Priority-based Flow Control (PFC)
Standards
• IEEE 802.1Qbb
– Approved as IEEE standards in June 2011
Industry
• Many switch, adapter and chipset vendors – Switch includes FCFs and DCBs • Interoperability – Highly interoperable 19
Enhanced Transmission Selection (ETS)
Standards
• IEEE 802.1Qaz
– Approved as IEEE standards in June 2011
Industry
• Many switch, adapter and chipset vendors – Switch vendor support • Interoperability – Not applicable • See DCBX interoperability – Local forwarding decision – Works well end-to-end across different vendors 20
Data Center Bridging eXchange
Standards
• Pre-standard – Convergence Enhanced Ethernet (CEE) • IEEE P802.1Qaz
– Approved as IEEE standards in June 2011
Industry
• Many switch, adapter and chipset vendors • Interoperability – Most venders support CEE 1.01
• Highly interoperable – Few venders support IEEE 802.1Qaz today • Most have roadmap to support this in near future • Plugfest interoperability test planned for fall 2011 21
Congestion Notification
Standards
• IEEE 802.1Qau
– Approved as IEEE standards in 2010
Industry
• Very few support • Few have roadmap in the near future • Interoperability – Limited early interoperability testing fall 2010 – More testing planned fall 2011 22
What is coming
Standards
• IEEE P802.1Qbg
– Edge Virtual Bridging – Still in process in working group • IEEE P802.1Qbh
– Bridge Port Extension – Still in process in working group
Application
• Virtual Bridging • Ultra high-density low latency switches • DCB on 40GbE
To be covered in future EA webinars
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ROAD TO SUCCESS
Testing, testing, and more testing
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Importance of testing • Many new and recently developed protocols • Many new product implementations • Some very early adopters of relatively new protocols • Interoperability with new products and new vendors 25
A lot to test in the Converged Data Center
DCB protocols, FCoE/iSCSI/RoCE /iWARP applications, converged switches, DCB adapters, Bridging protocols, Routing protocols, 40/100GbE uplinks, virtualization performance 26
Ethernet Alliance Testing end-to-end Storage testing I/O performance Server performance Fibre Channel 27
Ethernet Alliance Testing end-to-end Storage testing I/O performance Server performance Fibre Channel Network testing TCP/IP performance Switch performance Ethernet 28
Ethernet Alliance Testing end-to-end Storage testing I/O performance Server performance Fibre Channel Network testing TCP/IP performance Switch performance Ethernet EA Plugfest converged network testing FCoE/iSCSI/iWARP/RoCE Data Center Bridging Storage + TCP/IP CNA Virtualization 29
Ethernet Alliance Testing end-to-end Storage testing I/O performance Server performance Fibre Channel Network testing TCP/IP performance Switch performance Ethernet EA Plugfest converged Data Center Bridging Storage + TCP/IP
to validate end-to-end converged network functionality.
CNA Virtualization 30
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Ways to Get Involved In EA • Become A Member 32
Ways to Get Involved In EA • Become A Member • Attend A Plugfest •
Data Center Bridging
•
Higher Speed Modular IO
• •
High Speed Ethernet Energy Efficient Ethernet
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Ways to Get Involved In EA • Become A Member • Attend A Plugfest •
Data Center Bridging
•
Higher Speed Modular IO
• •
High Speed Ethernet Energy Efficient Ethernet
• Join A Subcommittee 34
Ways to Get Involved In EA • Become A Member • Attend A Plugfest •
Data Center Bridging
•
Higher Speed Modular IO
• •
High Speed Ethernet Energy Efficient Ethernet
• Join A Subcommittee • Participate In An EA Booth At Trade Shows • • •
European Conference on Optical Communication (ECOC)
•
Carrier Ethernet Congress Interop Supercomputing
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Ways to Get Involved In EA • Become A Member • Attend A Plugfest •
Data Center Bridging
•
Higher Speed Modular IO
• •
High Speed Ethernet Energy Efficient Ethernet
• Join A Subcommittee • Participate In An EA Booth At Trade Shows • •
Carrier Ethernet Congress Interop
•
European Conference on Optical Communication (ECOC)
•
Supercomputing
• Participate In EA Sponsored Webinars 36
Discussion and Q&A 37