Extension Header for Site-Multi-homing support
UC3M
UC3M
This note describes an IPv6 multi-homing solution that achieves equivalent fault tolerance benefits to those provided by current IPv4 multi-homing solution while preserving the route aggregation capabilities of the Provider-based Aggregation scheme. The solution lies on the inclusion, in every packet flowing to a multi-homed site, of an extension header containing multiple alternative route information to the destination, so that if the original destination address becomes unreachable, alternative route is used for reaching the destination.