The topic of this post is Layer 3 VPN (L3VPN or VPRN as we call it in SROS) configuration, and I decided to kill two birds with one stone by inviting Juniper vMX to our cozy SROS environment.
The BGP/MPLS VPN (RFC 4364) configuration will undergo the following milestones:
- PE-PE relationship configuration with VPN IPv4 address family introduction
- PE-CE routing configuration with both BGP and OSPF as routing protocols
- Export policy configuration for advertising VPN routes on PE routers
- AS override configuration
- and many more
We’ll wrap it up with the Control Plane/Data Plane evaluation diagrams which help a lot with understanding the whole BGP VPN mechanics. Take your seats, and buckle up!