MEF/Metro Ethernet Forum: Carrier Ethernet:     

https://en.wikipedia.org/wiki/Carrier_Ethernet#Ethernet_Private_Line

https://web.archive.org/web/20150923004617/https://www.mef.net/carrier-ethernet-services/carrier-ethernet-and-ce-2-0

• Ethernet Virtual Private Line or E-Line: a service connecting two customer Ethernet ports over a WAN.
• Ethernet Virtual Private LAN or E-LAN: a multipoint service connecting a set of customer endpoints, giving the appearance to the customer of a bridged Ethernet network connecting the sites.
• Ethernet Virtual Private Tree or E-Tree: a multipoint service connecting one or more roots and a set of leaves, but preventing inter-leaf communication.

RFC 2544 Throughput and Latency test for EX4300 by using Spirent

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