Communication networks that provide a common transport domain for use by multiple service domains and methods and computer program products for using the same

摘要

A method of operating a communication network comprises receiving loopback addresses from a plurality of edge networks at a provider router of a core backbone network, the edge networks and the core backbone network being logically distinct from each other, advertising the loopback addresses to a transport route reflector element, propagating the advertisement of the loopback addresses to other provider routers of the core backbone network using a protocol for communicating between autonomous systems, and using the transport route reflector element to advertise at least one of the loopback addresses to a service route reflector element in one of the plurality of edge networks.

主权项

1. A method of operating a communication network, comprising:
receiving loopback addresses from a plurality of edge networks at a provider router of a core backbone network, the edge networks and the core backbone network being logically distinct from each other; advertising the loopback addresses to a transport route reflector element; propagating the advertisement of the loopback addresses to other provider routers of the core backbone network using a protocol for communicating between autonomous systems; and using the transport route reflector element to advertise one of the loopback addresses to a service route reflector element in one of the plurality of edge networks; wherein the loopback addresses are not included in routing tables used by an interior gateway protocol for communication within the core backbone network.