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