C form-factor pluggable: Difference between revisions

Revision as of 14:00, 24 April 2018

Revision as of 03:54, 9 September 2018

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==CFP standardization==

The CFP transceiver is specified by a [[multi-source agreement]] (MSA) among competing manufacturers.<ref>{{cite web|url=http://www.cfp-msa.org/|website=CFP MSA|accessdate=24 April 2018|title=CFP Multi-Source Agreement}}</ref>. The CFP was designed after the [[small form-factor pluggable transceiver]] (SFP) interface, but is significantly larger to support 100&nbsp;Gbit/s. While the electrical connection of a CFP uses {{nowrap|10 × 10 Gbit/s}} lanes in each direction (RX, TX),<ref name="CFP1.4">{{Cite web | title=CFP MSA Hardware Specification, Rev. 1.4 | url=http://www.cfp-msa.org/Documents/CFP-MSA-HW-Spec-rev1-40.pdf | accessdate=2010-07-02}}</ref> the optical connection can support both {{nowrap|10 × 10 Gbit/s}} and {{nowrap|4 × 25 Gbit/s}} variants of 100&nbsp;Gbit/s interconnects (typically referred to as 100GBASE-SR10 in 100&nbsp;meter [[multi-mode optical fiber|MMF]], 100GBASE-LR10 and 100GBASE-LR4 in 10&nbsp;km [[single-mode optical fiber|SMF]] reach, and 100GBASE-ER10 and 100GBASE-ER4 in 40&nbsp;km SMF reach respectively.)<ref>{{Cite web | title=Operational Considerations for Deploying 100 Gigabit Ethernet | url=http://www.nanog.org/meetings/nanog51/presentations/Monday/NANOG51.Talk32.hankins-nanog51-100-gbe.pdf | accessdate=2012-01-12}}</ref>

In March 2009, [[Santur Corporation]] demonstrated a 100&nbsp;Gigabit pluggable CFP transceiver prototype.<ref>{{cite web|title=Santur Delivers the World’sWorld's First 100Gb/s Transceiver Platform for Client Connectivity Based on Photonic Intelligent Integration |url=http://www.santurcorp.com/pressrel_03-23-09b.htm |date=March 23, 2009 |work=news release |archiveurl=https://www.webcitation.org/5iQH3sIGw?url=http://www.santurcorp.com/pressrel_03-23-09b.htm |archivedate=July 21, 2009 |deadurl=yes |accessdate=May 27, 2013 |df= }}</ref>

==Supported signals==

===Digital===

CFP transceivers can support a single 100&nbsp;Gbit/s signal like [[100 Gigabit Ethernet|100GbE]] or [[Optical Transport Network|OTU4]] or one or more 40&nbsp;Gbit/s signals like 40GbE, [[OTU3]], or [[STM-256]]/[[OC-768]].

===Analog===

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=== CFP ===

* 82 &nbsp;mm × 13.6 &nbsp;mm × 144.8 &nbsp;mm (width×height×depth)

* 148 pin electrical connection

* integrated digital signal processor within package

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=== CFP2 ===

* 41.5 &nbsp;mm × 12.4 &nbsp;mm × 107.5 &nbsp;mm (w×h×d)

* 104 pin electrical connection

* no digital signal processor in package, relies on host card

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=== CFP4 ===

* 21.5 &nbsp;mm × 9.5 &nbsp;mm × 92 &nbsp;mm (w×h×d)

* 56 pin electrical connection

* no digital signal processor in package, relies on host card

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=== CFP8 ===

* 40 &nbsp;mm × 9.5 &nbsp;mm × 102 &nbsp;mm (w×h×d)

* 124 pin electrical connection

* no digital signal processor in package, relies on host card