Hi there!
This time, I will share with you about the application of VPN in GPON by VRF.
Introduction to VRF
The key of the virtual route forwarding (VRF) lies in VR, which is equivalent to implementing the functions of multiple virtual routing devices one routing device. VRF is suitable for GPON users.
The MA5800 categorizes VRFs by VLANs to provide L3VPN solutions. All the packets or related protocols on the Layer 3 interface of a VRF are processed only in this VRF, which is unrelated to other VRFs. In this way, the services or users can be isolated, and the IP addresses can be saved.
Multiple virtual routing devices can be created on the MA5800. That is, multiple L3VPNs can be established to implement the Layer 3 isolation and independent packet forwarding among different VRFs. Moreover, in different VRFs, the IP address can be reused, and also DHCP relay multi-instances, routing multi-instances, and independent route forwarding tables are supported.
VRF has two application scenarios
1.When the triple play service is provisioned to GPON access users, different services are isolated from each other by VRF, and all services of the device are carried and go upstream by the same physical link. One VR can be bound to each VLANIF interface, and the upstream port belongs to multiple Layer 3 interfaces. Different VRs are bound to different VLANIF interfaces, and each VR forwards data according to the route learned by this VR.
2. When the triple play service is provisioned to GPON access users, different services are isolated from each other by VRF, and all services of the device are carried and go upstream by two or more physical links. The links in this case are in the Layer 3 mode, and different services are isolated from each other by VRF.
The difference of the two scenarios is that dual or multiple links are adopted for upstream transmission in scenario 2, where the effect of different VRs going different "ways" is more vivid.
For details about its configurations, please click VRF. If you can't open this link, please refer to this post to upgrade your permissions: How do we upgrade our account .
Thank you!
