TE-link bandwidth model of ODU switch capable OTN interfaces

A method comprising the steps of:

• generating, by circuitry of a first node, a link state advertising message including bandwidth information indicative of unreserved number of optical channel data unit containers for a plurality of different types of signals supported by an interface of the first node;
• transmitting the link state advertising message from the first node to a plurality of second nodes within a mesh network,
• wherein the interface of the first node is a first interface, and wherein the first node includes a second interface with the first interface connected to a first link, and the second interface connected to a second link to form a link bundle, and with the first and second interfaces of the first node supporting at least two priority levels, and wherein the bandwidth information of the link state advertising message includes a first maximum label switched path (LSP) bandwidth field at a first priority and a second maximum LSP bandwidth field at a second priority, the link state advertising message further including:
• an encoding field,
• a switching cap field that identifies a switching technology that is time division multiplexing, such that the encoding field designates a data encoding used in the switching cap field,
• a TDM switch capability specific information field including a minimum LSP bandwidth field,
• wherein the first and second fields indicative of the first and second maximum LSP bandwidths, respectively, are provided in the link state advertising message between the encoding field and the TDM switch specific information field,
• the first maximum LSP bandwidth being equal to a product of a first Unreserved TS-Count and a first TS-Nominal-Rate, the first Unreserved TS-Count being a number of first optical payload unit (OPU) tributary slots unreserved on a first optical data unit (ODU) container, and the first TS-Nominal-Rate being a nominal rate of each of the first OPU tributary slots, and
• the second maximum LSP bandwidth being equal to a product of a second Unreserved TS-Count and a second TS-Nominal-Rate, the second Unreserved TS-Count being a number of second optical payload unit (OPU) tributary slots unreserved on a second optical data unit (ODU) container, and the second TS-Nominal-Rate being a nominal rate of each of the second OPU tributary slots.