Ethernet Private Line
Encyclopedia
Ethernet Private Line is a data service defined by the Metro Ethernet Forum
, providing a point-to-point Ethernet Virtual Connection (EVC) between a pair of dedicated User–network interfaces (UNIs), with a high degree of transparency.
EPL service is categorized as an E-Line service type, with an expectation of low Frame Delay, Frame Delay Variation and Frame Loss Ratio. EPL is implemented using a point-to-point (EVC) with no Service Multiplexing at each UNI (physical interface), i.e., all service frames at the UNI are mapped to a single EVC (a.k.a. All-to-one bundling).
Due to a high degree of transparency, EPL is often used to provide point-to-point Transparent LAN Service
(TLS), where the Service Frame’s header and payload are identical at both the source and destination UNI. Some implementations tunnel most Ethernet Layer 2 Control Protocols (L2CPs) except for some link layer L2CPs such as IEEE 802.3x Pause frames.
Metro Ethernet Forum
The Metro Ethernet Forum , founded in 2001, is a nonprofit international industry consortium, dedicated to worldwide adoption of Carrier Ethernet networks and services....
, providing a point-to-point Ethernet Virtual Connection (EVC) between a pair of dedicated User–network interfaces (UNIs), with a high degree of transparency.
EPL service is categorized as an E-Line service type, with an expectation of low Frame Delay, Frame Delay Variation and Frame Loss Ratio. EPL is implemented using a point-to-point (EVC) with no Service Multiplexing at each UNI (physical interface), i.e., all service frames at the UNI are mapped to a single EVC (a.k.a. All-to-one bundling).
Due to a high degree of transparency, EPL is often used to provide point-to-point Transparent LAN Service
Transparent LAN Service
Transparent LAN Service is a service from a carrier linking together remote Ethernet networks. It is called "transparent" because the connected networks are viewed as one contiguous network by the customer, regardless of the deployed technology by the carrier in between...
(TLS), where the Service Frame’s header and payload are identical at both the source and destination UNI. Some implementations tunnel most Ethernet Layer 2 Control Protocols (L2CPs) except for some link layer L2CPs such as IEEE 802.3x Pause frames.