Configuring IPv6 ND direct route advertisement
The ND direct route advertisement feature advertises host routes instead of advertising the network route. This feature is typically configured on PE-aggs to advertise host routes to PEs in the L3VPN.
Figure 85 shows a typical application scenario where the PE in the L3VPN has ECMP routes destined to a base station in the L2VPN. Traffic from the PE in the L3VPN to the base station can be load shared by PE-agg 1 and PE-agg 2. If PE-agg 1 fails, the PE uses the host route through PE-agg 2 to forward traffic.
Figure 85: Typical application
To configure ND direct route advertisement:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Configure an L3VE interface and enter its view. | interface ve-l3vpn interface-number | By default, no L3VE interfaces exist. For more information about the command, see MPLS Command Reference. |
3. Enable ND direct route advertisement. | ipv6 nd route-direct advertise | By default, ND direct route advertisement is disabled. |