Abstract: A connector comprises an insulation housing, a shielding shell, an inner sheath, and an outer sheath. The shielding shell is sheathed on the insulation housing. The inner sheath is formed on the shielding shell by injection molding. The inner sheath includes a front end wrapped on the shielding shell and a retaining portion formed on the front end of the inner sheath and spaced from the shielding shell to form a gap therebetween. The outer sheath is formed on the shielding shell and the inner sheath by injection molding. The outer sheath includes an engaging portion embedded in the gap between the retaining portion and the shielding shell. The retaining portion holds the engaging portion on the shielding shell to prevent the formation of a gap between the front end of the outer sheath and the shielding shell.

Abstract: A method for optical restoration in an optical network is provided. A network controller obtains, from one or more optical nodes of an optical network, at least one failure notification indicating a failure of a primary path between a first node and a second node. The network controller forwards to a first set of optical nodes, data-plane parameters for optical components of the first set of optical nodes. The first set of optical nodes include the first node, the second node, and one or more intermediate nodes, and forms a restoration path for the primary path. The data-plane parameters for the optical components are forwarded in parallel to the first set of optical nodes of the restoration path so as to activate the restoration path in parallel. The network controller switches traffic from the primary path to the restoration path.

Abstract: A method for optical restoration in an optical network is provided. A network controller obtains, from one or more optical nodes of an optical network, at least one failure notification indicating a failure of a primary path between a first node and a second node. The network controller forwards to a first set of optical nodes, data-plane parameters for optical components of the first set of optical nodes. The first set of optical nodes include the first node, the second node, and one or more intermediate nodes, and forms a restoration path for the primary path. The data-plane parameters for the optical components are forwarded in parallel to the first set of optical nodes of the restoration path so as to activate the restoration path in parallel. The network controller switches traffic from the primary path to the restoration path.

Abstract: In one embodiment, a first optical network device includes a controller, and a first network interface, wherein the first network interface is configured to exchange data with a first layer 3 network device, and the controller is configured to obtain at least one optical circuit attribute including an optical circuit distance and/or an optical circuit latency of a first optical circuit in an optical network, and provide the at least one optical circuit attribute to the first layer 3 network device. Related apparatus and methods are also described.

Abstract: In one embodiment, a first optical network device includes a controller, and a first network interface, wherein the first network interface is configured to exchange data with a first layer 3 network device, and the controller is configured to obtain at least one optical circuit attribute including an optical circuit distance and/or an optical circuit latency of a first optical circuit in an optical network, and provide the at least one optical circuit attribute to the first layer 3 network device. Related apparatus and methods are also described.