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40GBASE-R and 100GBASE-R use 64b/66b encoding over multiple lanes of 10.3125 GBd or 25.78125 GBd each. These lanes – four for 40 Gbit/s, four or ten for 100 Gbit/s per direction – are either transmitted separately over short distance or together with coarse
327:
10GBASE-W (WAN) defines WAN encoding for 10GbE. It uses 64/66b encoding and lowers the MAC rate to 9.95 Gbit/s, so that is compatible with SONET STS-192c data rates and SDH VC-4-64 transmission standards when wrapped into a SONET
331:
10GBASE-T for twisted pair copper splits the data into four lanes and uses 64B/65B encoding, scrambling, and 128 double-square (DSQ128) checkerboard encoding with PAM-16 generated at 800 MBd.
324:
10GBASE-X (LAN/WAN) uses 8b/10b encoding over four lanes at 3.125 GBd each and is used for 10GBASE-LX4 (single-mode and multi-mode fiber), 10GBASE-CX4 (twinax), and 10GBASE-KX4 (backplane).
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Physical coding sublayer (PCS) – This sublayer determines when a functional link has been established, provides rate difference compensation, and performs coding such as
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Physical medium attachment (PMA) sublayer – This sublayer performs PMA framing, octet synchronization/detection, and
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Reconciliation sublayer (RS) – This sublayer processes PHY local/remote fault messages and handles DDR conversion
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that allows for
Ethernet framing at a rate of 10.3125 Gbit/s. This rate does not match the rate 9.953 Gbit/s used in
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67:, alignment marker insertion and removal, block and symbol redistribution, and lane block synchronization and deskew.
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1000BASE-T for twisted pair copper splits the data into four lanes and uses four-dimensional, five-level (quinary)
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2.5GBASE-T and 5GBASE-T use the same encoding as 10GBASE-T slowed by a factor of four or two, respectively.
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48. Physical Coding
Sublayer (PCS) and Physical Medium Attachment (PMA) sublayer, type 10GBASE-X
221:(PMD) sublayer – This sublayer consists of a transceiver for the physical medium
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25GBASE-R uses the same 64b/66b encoding as 10GBASE-R with a speed-up to 25.78125 GBd.
246:(PLS), encoding each bit as a high-low (logical zero) or low-high transition (logical one).
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100BASE-X for fiber (100BASE-FX) and twisted pair copper (100BASE-TX) encodes data
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472:"IEEE 802.3by 25G Ethernet TF, A BASELINE PROPOSAL FOR RS, PCS, AND FEC"
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1000BASE-X for fiber and 150 Ω balanced copper (twinaxial) uses
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and SDH and is not supported over a WAN based on SONET or SDH.
63:(MII). It is responsible for data encoding and decoding,
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The
Ethernet PCS sublayer is at the top of the Ethernet
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313:10GBASE-R (LAN) is the serial encoded PCS using
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549:Ethernet 1000BASE-X PCS/PMA Technology Basics
51:(PHY), and provides an interface between the
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35:) is a networking protocol sublayer in the
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47:standards. It resides at the top of the
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512:Packet: Cisco Systems Users Magazine
79:(PHY). The hierarchy is as follows:
639:200, 400, 800 and 1600 Gbit/s
25:
978:
967:
966:
354:wavelength division multiplexing
157:{\displaystyle x^{58}+x^{39}+1}
388:Ethernet: The Definitive Guide
1:
367:PHY-Level Collision Avoidance
356:on long distance fiber (-LR).
293:and a symbol rate of 125 MBd.
208:{\displaystyle x^{7}+x^{6}+1}
244:Physical signaling sublayer
65:scrambling and descrambling
61:media-independent interface
1023:
518:(3): 25–28. Archived from
505:"10 GbE and Its X Factors"
422:IEEE 802.3 Clause 24.1.4.1
386:Spurgeon, Charles (2014).
298:2.5 and 5 Gigabit Ethernet
53:physical medium attachment
962:
440:IEEE 802.3-2012 Clause 40
431:IEEE 802.3-2012 Clause 36
390:. O'Reilly. p. 198.
260:to five-bit code groups (
219:Physical medium dependent
889:SFP/SFP+/QSFP/QSFP+/OSFP
494:IEEE 802.3 Clauses 82-89
461:IEEE 802.3 Clause 55.3.2
29:physical coding sublayer
18:Physical Coding Sublayer
346:40/100 Gigabit Ethernet
233:10 Mbit/s Ethernet
215:scrambling/descrambling
165:scrambling/descrambling
634:40 and 100 Gbit/s
503:Barbieri, Alessandro.
238:Classic Ethernet uses
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158:
629:25 and 50 Gbit/s
619:2.5 and 5 Gbit/s
210:
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96:Medium access control
173:
122:
90:Logical link control
336:25 Gigabit Ethernet
308:10 Gigabit Ethernet
59:) sublayer and the
45:10 Gigabit Ethernet
589:local area network
544:IEEE 802.3 Meeting
287:trellis modulation
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846:Energy Efficiency
701:Ethernet Alliance
16:(Redirected from
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269:Gigabit Ethernet
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41:Gigabit Ethernet
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660:Autonegotiation
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412:1.4 Definitions
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240:Manchester code
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98:(MAC) sublayer
84:Data link layer
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538:External links
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689:Organizations
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37:Fast Ethernet
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876:Transceivers
819:Applications
722:Twisted pair
670:Flow control
591:technologies
527:. Retrieved
520:the original
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479:. Retrieved
477:. 2015-01-12
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282:of 1.25 GBd.
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32:
28:
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866:Synchronous
841:Data center
449:IEEE 802.3
410:IEEE 802.3
280:symbol rate
71:Description
917:Interfaces
851:Industrial
831:Automotive
810:Long Reach
732:First mile
696:IEEE 802.3
587:family of
529:2007-12-31
481:2016-08-06
373:References
111:(Layer 1)
86:(Layer 2)
805:LattisNet
800:100BaseVG
775:10BASE-FL
770:10BASE-FB
765:10BROAD36
665:EtherType
109:PHY Layer
1007:Ethernet
1001:Category
973:Category
748:Historic
737:10G-EPON
585:Ethernet
361:See also
985:Commons
836:Carrier
785:10BASE2
780:10BASE5
760:StarLAN
755:CSMA/CD
727:Coaxial
648:General
278:with a
258:nibbles
242:in the
894:XENPAK
680:Jumbos
675:Frames
597:Speeds
394:
328:frame.
43:, and
949:XGMII
861:Power
856:Metro
826:Audio
795:FOIRL
717:Fiber
710:Media
523:(PDF)
508:(PDF)
475:(PDF)
319:SONET
291:PAM-5
289:with
954:XAUI
944:GMII
884:GBIC
392:ISBN
262:4B5B
118:and
27:The
939:MII
934:MDI
929:EAD
924:AUI
908:CFP
903:XFP
790:MAU
57:PMA
33:PCS
1003::
898:X2
516:17
514:.
510:.
264:).
144:39
131:58
39:,
896:/
577:e
570:t
563:v
532:.
484:.
400:.
203:1
200:+
195:6
191:x
187:+
182:7
178:x
152:1
149:+
140:x
136:+
127:x
55:(
31:(
20:)
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