IEEE 802.3BZ-2016
Ethernet Amendment 7: Media Access Control Parameters@ Physical Layers@ and Management Parameters for 2.5 Gb/s and 5 Gb/s Operation@ Types 2.5GBASE-T and 5GBASE-T (IEEE Computer Society)

Standard No.

IEEE 802.3BZ-2016

Release Date

2016

Published By

IEEE - The Institute of Electrical and Electronics Engineers@ Inc.

Latest

IEEE 802.3BZ-2016

Scope

This clause describes the general requirements for 2.5 Gigabit and 5 Gigabit Ethernet. 2.5 Gigabit Ethernet uses the IEEE 802.3 MAC sublayer operating at a data rate of 2.5 Gb/s@ coupled with any IEEE 802.3 2.5GBASE Physical Layer implementation. 5 Gigabit Ethernet uses the IEEE 802.3 MAC sublayer operating at a data rate of 5 Gb/s@ coupled with any IEEE 802.3 5GBASE Physical Layer implementation. 2.5 Gb/s and 5 Gb/s Physical Layer entities@ such as those specified in Table @ provide a bit error ratio (BER) better than or equal to 10?C12 at the MAC/PLS service interface. Gigabit and 5 Gigabit Ethernet are defined for full duplex operation only. Relationship of 2.5 Gigabit and 5 Gigabit Ethernet to the ISO OSI reference model Gigabit and 5 Gigabit Ethernet couple the IEEE 802.3 MAC to a family of 2.5 Gb/s and 5 Gb/s Physical Layers. The relationships among 2.5 Gigabit and 5 Gigabit Ethernet@ the IEEE 802.3 MAC@ and the ISO Open System Interconnection (OSI) reference model are shown in Figure 125?C1. While this standard defines interfaces in terms of bits@ octets@ and frames@ implementations may choose other data-path widths for implementation convenience. The only exceptions are as follows: The XGMII@ which@ when implemented as a logical interconnection port between the MAC sublayer and the Physical Layer (PHY)@ uses a 32-bit-wide data path as specified in Clause 46. The management interface@ which@ when physically implemented as the MDIO/MDC (Management Data Input/Output and Management Data Clock) at an observable interconnection port@ uses a bit wide data path as specified in Clause 45. The MDI as specified in Clause 126 for 2.5GBASE-T and 5GBASE-T uses a 4 lane data path.

IEEE 802.3BZ-2016 history

• 2016 IEEE 802.3BZ-2016 Ethernet Amendment 7: Media Access Control Parameters@ Physical Layers@ and Management Parameters for 2.5 Gb/s and 5 Gb/s Operation@ Types 2.5GBASE-T and 5GBASE-T (IEEE Computer Society)