10 Gigabit Ethernet

10 Gigabit Ethernet
Geek2003 · CC BY-SA 3.0 · source
Name	10 Gigabit Ethernet
Released	2002
Standard	IEEE 802.3ae
Speed	10 Gbit/s
Layer	Physical, Data link

10 Gigabit Ethernet is a high-speed networking technology standardized by Institute of Electrical and Electronics Engineers working groups and adopted across enterprise, carrier, and research environments. It evolved from prior initiatives involving Xerox PARC, Bell Labs, DEC, and consortiums such as the Metro Ethernet Forum and Mellanox Technologies, enabling backbone upgrades in infrastructures managed by organizations like Cisco Systems, Juniper Networks, and Arista Networks. The standardization process involved interoperability events with vendors including Intel, Broadcom Inc., Finisar, and research testbeds such as Internet2 and ESnet.

Overview

10 Gigabit Ethernet was formalized through committees within the Institute of Electrical and Electronics Engineers under project identifiers linked to the IEEE 802.3 family and ratified in the early 2000s after collaboration among firms like Agere Systems, Nortel Networks, and Lucent Technologies. The initiative addressed demands from carriers such as AT&T, Verizon Communications, and content providers like Google and Facebook for higher-capacity links between data centers and metropolitan exchanges. Adoption paralleled upgrades in data center design promoted by companies like Amazon Web Services and Microsoft and research needs at institutions such as CERN and Lawrence Berkeley National Laboratory.

Standards and Physical Layers

The IEEE 802.3ae amendment defined electrical and optical physical layer specifications, with subsequent work in the IEEE 802.3ba and IEEE 802.3by task forces to extend multi-gigabit and higher-rate Ethernet families. PHY variants included standards for short-reach copper implementations inspired by research at Intel Labs and long-reach optical interfaces standardized with input from manufacturers such as Finisar and Avago Technologies. Link training, auto-negotiation, and forward error correction techniques invoked outcomes from collaborations involving ITU-T study groups and the Telecommunications Industry Association to ensure interoperability in metropolitan and carrier networks operated by entities like Deutsche Telekom and NTT Communications.

Media and Cabling Types

Physical media encompassed single-mode fiber and multimode fiber types standardized with cabling norms from TIA/EIA committees and connector specifications popularized by vendors like Corning Incorporated and Siemon. Multimode variants targeted OM1, OM2, OM3, and OM4 fiber families, affecting reach budgets and transceiver choices supplied by firms such as Finisar and Broadcom Inc.. Copper variants included 10GBASE-CX4 and the subsequent 10GBASE-T, the latter influenced by silicon PHY developments at Broadcom Inc. and Marvell Technology Group. Connectors and modules followed industry form factors driven by groups like the Small Form Factor Committee and manufacturers such as Finisar and Molex.

Performance and Features

At 10 Gbit/s, latency, jitter, and frame-handling requirements attracted attention from high-frequency trading desks at firms like NASDAQ and CME Group and scientific computing centers such as National Center for Supercomputing Applications. Features such as jumbo frame support, flow control mechanisms standardized in IEEE 802.3x, and energy-efficient Ethernet efforts in later IEEE 802.3az work influenced deployments by operators such as Level 3 Communications and hyperscalers including Google LLC. Performance tuning often involved switching platforms from Cisco Systems, Juniper Networks, and Arista Networks combined with NICs from Intel Corporation and Mellanox Technologies to optimize throughput for workloads from Facebook and Twitter.

Deployment and Applications

Deployments spanned campus backbones at universities like Stanford University and Massachusetts Institute of Technology, carrier aggregation links for providers such as Verizon Communications and AT&T, and data center spine-leaf fabrics built by cloud providers including Amazon Web Services and Microsoft Azure. Applications included storage area network traffic in environments using EMC Corporation and NetApp arrays, video distribution systems for broadcasters like BBC and NBCUniversal, and research data transfers at facilities such as Fermilab and SLAC National Accelerator Laboratory.

Interoperability and Compatibility

Interoperability testing events organized by industry consortia such as the Ethernet Alliance and testbeds at research networks like Internet2 validated multi-vendor compatibility among switch vendors Cisco Systems, Arista Networks, Juniper Networks, and transceiver suppliers including Finisar and Finisar Corporation affiliates. Backward compatibility with existing IEEE 802.3 MAC semantics allowed integration into enterprise networks managed by organizations such as IBM and HP, while optical transport compatibility required coordination with standards from ITU-T and equipment from fiber vendors like Corning Incorporated. Challenges included heat and power considerations for 10GBASE-T ports addressed by silicon vendors such as Broadcom Inc. and Marvell Technology Group and cabling upgrade programs coordinated with integrators like Siemon and CommScope.

Category:Ethernet standards