To configure a BGP EVPN

Steps

A 7750 SR, 7450 ESS, 7250 IXR, or 7950 XRS can generate Ethernet auto-discovery routes. When BGP EVPN is configured, a single AD per-ES route with the associated RD and a set of EVI route-targets is advertised.

 

On the equipment tree, right-click on an NE and choose Properties. The Network Element (Edit) form opens.


Click on the Globals tab, and then on the Service tab.


Click on the BGP tab, and then on the EVPN tab.


Configure the required BGP EVPN parameters. The following considerations apply:

  • The default Route Distinguisher Type is None. In this case, the RD is automatically built using the BGP-AD VPLS ID configured under the VPLS Site BGP tab. If you set the Route Distinguisher Type to Configured, then you need to provide an RD IP address.

  • The default AD per-ES routes advertisement type is EVI-RT, which specifies the option to advertise a separate AD per-ES route per service.

    The EVI-RT Set advertisement type specifies the option to advertise a set of AD per-ES routes aggregating the route targets for all the services in the Ethernet segment. If you choose EVI-RT Set, then you need to specify the IP address part of the RD that is being used in the EVI-RT Set option.

  • To allow for both EVPN VXLAN and EVPN MPLS to be in an Admin Up state on the same VPLS, different BGP IDs should be assigned to VXLAN and MPLS.

  • If two EVPN VXLAN instances are created on the same VPLS, different BGP IDs should be assigned to each VXLAN.

  • To allow propagation of attributes to other owners in VPRN, enable the Attribute Uniform Propagation parameter.

  • To allow new BGP based selection for RT5 routes, enable BGP Path Selection parameter.

  • To ignore the D-PATH domain segment length, enable the D-Path Length Ignore parameter.


Save the changes and close the form.

End of steps