Implementing Layer 3 VPN over SPBV

Do the following to implement L3 VPN over SPBV in your network:

  • Configure the VRF for the L3 VPN
  • Configure the route distinguisher for each VRF associated with a L3 VPN
  • Configure one or more route targets to identify the L3 VPN routes to import and export for each VRF associated with a L3 VPN
  • Optionally, specify a VPN identifier to uniquely identify this VPN to which a packet flow belongs to other network features outside of the VPN
  • Configure SPBV on all PEs and all devices within the SPBV region (see Shortest Path Bridging (SPB) Configuration for SPBV configuration details):
    • Configure Spanning Tree on all devices in the region by: setting the Spanning Tree version to SPT on all devices in the SPB region and configuring the same MST configuration name on all devices in the SPB region
    • Configure an SPVID pool for this SPB region (same VLAN range for all devices in the region).
    • Enable SPB on all ports that will take part in the SPB region, including the Provider Edge Global router ports.
    • Assign the base-VLANs that will be used to ingress and egress the SPB region to SID 4093 or SID spbv.
    • Optionaly, assign the same ECT algorithm for a given SPBV region to each configured base-VLAN (unless the default algorithm is desired).
    • Optionally, administratively assign the base-VLAN to SPVID mapping for the base-VLAN on each device in the SPB region. When administratively assigning the base-VLAN to SPVID mapping, change the SPB VLAN mode to manual.
  • In global VRF mode, configure BGP to propagate routes from the VRF routing protocol tables
    • Enable the appropriate (IPv4 or IPv6) BGP L3 VPN address family
    • Within the appropriate BGP L3 VPN address family, activate BGP neighbors