摘要:
A method including determining, for each reachable source-destination (S-D) node pair, a maximal number of optical channel (OCh) paths available for source-destination node pair connections and determining, if a preselected latency threshold is specified, for all available OCh paths a maximal number of paths satisfying the preselected latency threshold. The available OCh paths are reported to a Multi-Domain Service coordinator (MDSC).
摘要:
A method for establishing end-to-end tunnels extending across multiple domains using a network element. The method includes receiving a request from a customer controller to implement a virtual network (VN) created by the customer controller, wherein the VN identifies the end-to-end tunnels extending across the multiple domains, mapping the VN to available resources based on network constraints in response to the request, and transmitting, after the VN has been mapped, a message to a network controller managing one of the domains that includes a network path used to form a portion of one of the end-to-end tunnels, wherein the message includes an association object having a Type-Length-Value (TLV) field containing a virtual network identifier binding the network path to the VN.
摘要:
A network component is disclosed, including at least one control plane controller configured to implement a method including transmitting a message to at least one adjacent control plane controller, wherein the message includes a Type-Length-Value (TLV) indicating Routing and Wavelength Assignment (RWA) information. A method is also disclosed, including: communicating a message c including a TLV to a control plane controller, wherein the TLV indicates RWA information. An apparatus also disclosed, including: a control plane controller, configured to communicate a TLV to at least one adjacent control plane controller, wherein the TLV indicates RWA information.
摘要:
The disclosure includes an apparatus comprising a path computation element (PCE) that manages the processes of routing in an optical network, wherein the PCE receives a path computation request and provides a wavelength range to a network element (NE), and wherein the NE assigns a wavelength from the wavelength range. Also disclosed is an apparatus comprising a path computation client (PCC) that sends a path computation request to a path computation client (PCE) using path computation element communication protocol (PCEP), and receives a routing and wavelength assignment (RWA) reply to the path computation request using PCEP, wherein the RWA reply comprises an PCEP error message comprising a PCEP error object and an error value to indicate errors associated with the RWA request.
摘要:
A network component comprising at least one processor configured to implement a method comprising analyzing a path reservation message comprising a reserved path identifier, analyzing a plurality of frames each comprising a path identifier, and diverting at least some of the frames away from a router, wherein the path identifier in the diverted frames matches the reserved path identifier. Included is a system comprising a packet-aware transport box configured to receive a plurality of frames destined for a first router, snoop the frames, determine whether at least some of the frames should bypass the first router, and forward any frames that should bypass the first router to a second router without passing the frames to the first router.