IEEE 802.3ba
Encyclopedia
IEEE 802.3ba is an IEEE standard of the 802.3 family
of data link layer
standards for Ethernet
LAN and WAN applications, whose objective is to support speeds faster than 10 gigabit
s per second (Gbit/s). The standard supports 40 Gbit/s and 100 Gbit/s transfer rates.
The IEEE 802.3 working group is concerned with the maintenance and extension of the Ethernet data communications standard. Additions to the 802.3 standard are performed by task forces which are designated by one or two letters. For example the 802.3z task force drafted the original gigabit Ethernet standard.
802.3ba is the designation given to the higher speed Ethernet task force which is working on modifications to support speeds higher than 10 Gbit/s.
The chosen speeds are 40 and 100 Gbit/s to support both end-point and link aggregation needs. The Ethernet Alliance web site has information on why these speeds were chosen as does the PAR (Project Authorization Request) sent to the IEEE.
This is the first time two different Ethernet speeds have been specified in a single standard. The decision to include both speeds comes from pressure to support the 40 Gbit/s rate for local server applications and the 100 Gbit/s rate for internet backbones. The standard was announced in July 2007 and was ratified on June 17, 2010 .
In December 2007 a Project Authorization Request (PAR) was approved and in January 2008 the HSSG was renamed and met as the "IEEE 40Gb/s and 100Gbs Ethernet Task Force," moving the process to the next stage of formalization.
This standard was approved at the June 2010 IEEE Standards Board meeting under the name IEEE Std 802.3ba-2010.
IEEE 802.3
IEEE 802.3 is a working group and a collection of IEEE standards produced by the working group defining the physical layer and data link layer's media access control of wired Ethernet. This is generally a local area network technology with some wide area network applications...
of data link layer
Data link layer
The data link layer is layer 2 of the seven-layer OSI model of computer networking. It corresponds to, or is part of the link layer of the TCP/IP reference model....
standards for Ethernet
Ethernet
Ethernet is a family of computer networking technologies for local area networks commercially introduced in 1980. Standardized in IEEE 802.3, Ethernet has largely replaced competing wired LAN technologies....
LAN and WAN applications, whose objective is to support speeds faster than 10 gigabit
Gigabit
The gigabit is a multiple of the unit bit for digital information or computer storage. The prefix giga is defined in the International System of Units as a multiplier of 109 , and therefore...
s per second (Gbit/s). The standard supports 40 Gbit/s and 100 Gbit/s transfer rates.
The IEEE 802.3 working group is concerned with the maintenance and extension of the Ethernet data communications standard. Additions to the 802.3 standard are performed by task forces which are designated by one or two letters. For example the 802.3z task force drafted the original gigabit Ethernet standard.
802.3ba is the designation given to the higher speed Ethernet task force which is working on modifications to support speeds higher than 10 Gbit/s.
The chosen speeds are 40 and 100 Gbit/s to support both end-point and link aggregation needs. The Ethernet Alliance web site has information on why these speeds were chosen as does the PAR (Project Authorization Request) sent to the IEEE.
This is the first time two different Ethernet speeds have been specified in a single standard. The decision to include both speeds comes from pressure to support the 40 Gbit/s rate for local server applications and the 100 Gbit/s rate for internet backbones. The standard was announced in July 2007 and was ratified on June 17, 2010 .
History
In July 2006, the IEEE 802.3 working group formed the High Speed Study Group (HSSG) to investigate new standards for high speed Ethernet.In December 2007 a Project Authorization Request (PAR) was approved and in January 2008 the HSSG was renamed and met as the "IEEE 40Gb/s and 100Gbs Ethernet Task Force," moving the process to the next stage of formalization.
This standard was approved at the June 2010 IEEE Standards Board meeting under the name IEEE Std 802.3ba-2010.