Segment routing traffic engineering (SR-TE) with awareness of local protection

A node comprising:

• a plurality of ports;
• a switching fabric configured to interconnect the plurality of ports;
• and
• a controller,
• wherein the node is configured to
• obtain, via the plurality of ports, advertisement information from a plurality of nodes in a Segment Routing network, wherein the advertisement information relates to local protection at a corresponding node and includes i) addresses for links and/or nodes in the local protection with the local protection being addressed locally at the corresponding node instead of via the node or Path Computation Element (PCE), and ii) a type of the local protection, wherein the local protection is based on a Binding Segment Identifier (SID) for each local backup path in the local protection;
• store, via the controller, the advertisement information at the node;
• and
• compute, via the controller, a path in the Segment Routing network, at the node, based in part on available local protection on the path at associated remote nodes utilizing the stored advertisement information, wherein the node or PCE computes the path such that one or more nodes of the plurality of nodes have a guarantee of the local protection.

A method comprising

• obtaining advertisement information from a plurality of nodes in a Segment Routing network, wherein the advertisement information relates to local protection at a corresponding node and includes i) addresses for links and/or nodes in the local protection, and ii) a type of the local protection with the local protection being addressed locally at the corresponding node instead of via a head-end node or Path Computation Element (PCE), wherein the local protection utilizes a Binding Segment Identifier (SID) for each local backup path;
• storing the advertisement information locally at the head-end node or PCE;
• and
• computing a path in the Segment Routing network, by the head-end node or PCE based in part on available local protection on the path at associated remote nodes utilizing the stored advertisement information, wherein the head-end node or PCE computes the path such that one or more nodes of the plurality of nodes have a guarantee of the local protection.