Configure SPBM IPv4 Layer 3 VSN

After you have configured the SPBM infrastructure, you can enable SPBM Layer 3 Virtual Services Network (VSN) to advertise IPv4 routes across the SPBM network from one VRF to another using the following procedure.

SPBM Layer 3 VSN uses IS-IS to exchange the routing information for each VRF. In the VRF, just like in the Global Router (VRF 0), the routes are not redistributed into IS-IS automatically. To advertise the VRF routes, you must explicitly redistribute one of the following protocols into IS-IS: direct, static, RIP, OSPF, or BGP. Routing between VRFs is also possible by using redistribution policies and injecting routes from the other protocols.

Before you begin

  • You must configure the required SPBM IS-IS infrastructure.

  • You must configure a VRF and IP VPN instance on the switch. For more information about how to configure a VRF, see VRF Lite configuration using Enterprise Device Manager.

  • You must create the Customer VLANs and add slots/ports.

Procedure

  1. In the navigation pane, expand Configuration > IP.
  2. Select IP-VPN.
  3. Select the VPN tab.
  4. To create an IP VPN instance, select Insert.
  5. Select the ellipsis button (...), select a VRF to associate with the IP VPN, and click Ok.
  6. Select Insert.
  7. In the Enable column, select enable to enable the IP VPN on the VRF.
  8. In the IsidNumber column, specify an I-SID to associate with the VPN.
  9. Select Apply.
  10. In the navigation pane, expand Configuration > IP.
  11. Select Policy.
  12. To identify routes on the local switch to be announced into the SPBM network, select the Route Redistribution tab.
  13. Select Insert.
  14. In the DstVrfId box, select the ellipsis (...), and then select the destination VRF ID and select Ok.
  15. In the Protocol box, select isis as the route destination.
  16. In the SrcVrfId box, select (...) button, select the source VRF ID and click Ok.
  17. In the RouteSource box, select the source protocol.
  18. In the Enable box, select enable.
  19. In the RoutePolicy box, select the ellipsis (...), choose the route policy to apply to the redistributed routes and select Ok.
  20. Configure the other parameters as required.
  21. Select Insert.
  22. To apply the redistribution configuration, select the Applying Policy tab.
  23. Select RedistributeApply, and then select Apply.
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