Cisco OL-21636-01 - Manual (Page 376)

E-2
Cisco IP Solution Center L2VPN and Carrier Ethernet User Guide, 6.0
OL-21636-01
Appendix E ISC Layer 2 VPN Concepts
Layer 2 Terminology Conventions
In addition to E-Line and E-LAN services, two additional service types are available for Layer 2:
• Frame Relay over MPLS (FRoMLS)
• ATM over MPLS (ATMoMPLS)
These service types are not covered in the current MEF documentation, in spite of the fact that the MEF
has merged with the Frame Relay forum.
Formerly, another terminology was used by the MEF for Layer 2 services. Table E-3 maps the older
terminology to the current one.
For additional information about MEF conventions and additional useful background information on
Metro Ethernet standards, see the MEF website at the following URL:
http://metroethernetforum.org
In particular, see the document Metro Ethernet Services Definitions Phase 2 available under the section
Information Center > MEF Technical Specifications on the MEF website for a useful presentation of
Metro Ethernet terms and definitions.
Table E-1 Ethernet Service Definitions
Service Type Port-Based VLAN-Based
E-Line Ethernet Private Line (EPL) Ethernet Virtual Private Line (EVPL)
E-LAN Ethernet Private LAN (EP-LAN) Ethernet Virtual Private LAN (EVP-LAN)
Table E-2 MEF Ethernet Service Term Mappings
Current MEF Term Former MEF Term
L2VPN over MPLS Core
Ethernet Private Line (EPL) Ethernet Wire Service (EWS)
Ethernet Virtual Private Line (EVPL) Ethernet Relay Service (ERS)
ATM over MPLS (ATMoMPLS) ATM over MPLS (ATMoMPLS)
Frame Relay over MPLS (FRoMPLS) Frame Relay over MPLS (FRoMPLS)
VPLS over MPLS Core
Ethernet Private LAN (EP-LAN) Ethernet Wire Service (EWS) or
Ethernet Multipoint Service (EMS)
Ethernet Virtual Private LAN (EVP-LAN) Ethernet Relay Service (ERS) or
Ethernet Relay Multipoint Service (ERMS)
VPLS over Ethernet Core
Ethernet Private LAN (EP-LAN) Ethernet Wire Service (EWS)
Ethernet Virtual Private LAN (EVP-LAN) Ethernet Relay Service (ERS)