Software defined network virtualization utilizing service specific topology abstraction and interface

摘要

A computer program product comprising computer executable instructions stored on a non-transitory computer readable medium such that when executed by a processor cause a service specific virtual topology base, positioned in a network stratum, to receive a virtual service negotiation initiation message from an application stratum component, wherein the initiation message comprises a plurality of network source addresses, a plurality of network destination addresses, and a service specific objective, obtain a plurality of computed network paths that traverse a network of network stratum Network Elements (NEs) between the network source addresses and the network destination addresses and meet the service specific objective, and calculate service specific virtual topology that abstractly represents the computed service specific network paths.

主权项

1. A computer program product comprising computer executable instructions stored on a non-transitory computer readable medium such that when executed by a processor cause a service specific virtual topology base, positioned in a network stratum, to:
receive a virtual service negotiation initiation message from an application stratum component, wherein the virtual service negotiation initiation message comprises a plurality of network source addresses, a plurality of network destination addresses, and a service specific objective; obtain a plurality of computed network paths that traverse a network stratum of a network via a plurality of Network Elements (NEs), the plurality of computed network paths extending between a plurality of network source nodes associated with the network source addresses and a plurality of network destination nodes associated with the network destination addresses and meeting the service specific objective; and calculate a service specific virtual topology that abstractly represents the computed network paths, wherein calculating the service specific virtual topology comprises:
deriving a service specific network topology that includes the plurality of computed network paths; andreplacing all transit degree-2 nodes in the derived service specific network topology with virtual links.