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Feature Description - VPN 01

NE05E and NE08E V300R003C10SPC500

This is NE05E and NE08E V300R003C10SPC500 Feature Description - VPN
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L2VPN Accessing L3VPN Fundamentals

L2VPN Accessing L3VPN Fundamentals

Basic Concepts

  • Virtual Ethernet (VE) interface

    A VE interface has the common features of an Ethernet interface, and supports services such as maximum transmission unit (MTU) and QoS.

  • Layer 2 Virtual Ethernet (L2VE) interface

    An L2VE interface supports VPWS and VPLS services.

  • Layer 3 Virtual Ethernet (L3VE) interface

    An L3VE interface supports the termination of IP services or the access to L3VPNs. An L3VE interface also supports sub-interfaces.

  • VE group

    As a connector of L2VE and L3VE interfaces, a VE group provides a type of virtual connection to associate L2VE interfaces with L3VE interfaces by using the same group ID.


Figure 9-3 L2VPN accessing L3VPN

On the network shown in Figure 9-3, L2VE and L3VE interfaces are bound by means of a VE group. L2VPN accessing L3VPN is implemented through the loopback between the L2VE and L3VE interfaces of the same VE group. Logically, the principle of the loopback between the L2VE and L3VE interfaces is similar to that of connecting two physical interfaces through fibers. One of the interfaces is bound to an L2VPN, and the other is bound to an L3VPN.

A VE group is associated with a tag. By setting up different VE groups and bind them to different L2VPNs and L3VPNs, you can configure multiple L2VPN accessing L3VPN services.

Updated: 2019-01-14

Document ID: EDOC1100058940

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