E-Line Services for Cisco CCIE Service Provider Exam
Question
An engineer must implement E-Line services for a service provider network.
Which two services apply in this situation? (Choose two.)
Answers
Explanations
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A. B. C. D. E.AE.
http://www.cisco.com/c/en/us/td/docs/net_mgmt/prime/fulfillment/6-2/theory/operations/guide/theory/l2ce.pdfE-Line services refer to point-to-point Ethernet connectivity between two customer sites over a service provider's network. These services are typically used for connecting two data centers or providing private connectivity between customer sites.
Out of the given options, the two services that apply to E-Line services in a service provider network are:
A. EVPL (Ethernet Virtual Private Line) - EVPL is a point-to-point Ethernet service that provides a dedicated, transparent Ethernet connection between two sites. It is a type of E-Line service that offers a Layer 2 VPN (Virtual Private Network) solution, where the provider network emulates a point-to-point Ethernet link between the customer locations. EVPL is suitable for businesses that need secure, high-speed connections between their geographically dispersed locations.
D. EVC (Ethernet Virtual Circuit) - EVC is a virtual point-to-point or point-to-multipoint Ethernet connection between two or more customer sites. EVC is a type of E-Line service that provides a Layer 2 connectivity solution, similar to EVPL. However, unlike EVPL, EVC can support multiple VLANs and can be used to provide both point-to-point and point-to-multipoint connections. EVC is ideal for businesses that require multiple VLANs and need to connect multiple sites.
The other options are not applicable to E-Line services:
B. E-Tree (Ethernet Tree) - E-Tree is a point-to-multipoint Ethernet service that is used to connect multiple sites in a hierarchical fashion. E-Tree is a type of E-LAN service and is not suitable for E-Line services.
C. E-LAN (Ethernet Local Area Network) - E-LAN is a multipoint-to-multipoint Ethernet service that connects multiple sites in a LAN-like fashion. E-LAN is not suitable for E-Line services.
E. EPL (Ethernet Private Line) - EPL is a point-to-point Ethernet service that provides a dedicated, transparent Ethernet connection between two sites. EPL is a type of E-Line service, similar to EVPL. However, EPL does not support multipoint connections or multiple VLANs, which makes it less suitable for businesses that require these features.
