Converged Enhanced Ethernet

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What Does Converged Enhanced Ethernet Mean?

Converged enhanced Ethernet (CEE) is an enhanced single interconnect Ethernet technology developed to converge a variety of applications in data centers. CEE’s primary focus is to consolidate the number of cables and adapters connected to servers.


Today’s enterprise storage data centers demand lossless traffic service. These storage performance requirements can be met through the use of the IEEE 802 standard. Converged enhanced Ethernet is a term used to refer to the IEEE 802.1 standard version, and is considered to be the next generation Ethernet, providing a standardized packet lossless technology in input/output consolidation fiber channel over Ethernet networks. The main purpose behind using CEE networks, as a transport mechanism for fiber channels is to make the stacking of host protocol simple and to consolidate network interfaces in a data center environment.

CEE is also known as data center bridging

Techopedia Explains Converged Enhanced Ethernet

Some of the CEE enhancements to Ethernet include:

  • Priority Flow Control: Focused on developing a standard mechanism that can control the flow for each traffic class of service independently. The idea is to ensure zero loss when a traffic class gets congested in data center bridging networks.
  • Data Center Bridging exchange: Focused on developing a standard mechanism that can ensure interoperability.
  • Priority-Based Packet Scheduling: Used to develop a standard mechanism to set scheduling priorities for a set of traffic classes.

Some of the advantages of CEE convergence include:

  • CEE enhances the network-attached storage and Internet small computer interface by offering traffic differentiation at the link layer.
  • Fiber channel over CEE enables new servers in the data center to use a single link for both Ethernet and fiber channel communications, thereby reducing cable costs.
  • CEE technology can be used to converge a variety of applications such as local area networks, storage area networks and high-performance computing.

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Margaret Rouse
Technology Expert
Margaret Rouse
Technology Expert

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.