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!

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Roman Dodin

Eagerness to learn & passion to share

Network Automation @ Nokia