Patent ID: 9736066
Date: 2017-08-15
CPC Classifications: H04L,H04Q

Claim:
1. A method for establishing an optical bypass, applied in a core network architecture comprising an optical transmission layer comprising one or more optical transmission devices and a routing transmission layer comprising one or more routing devices, the method comprising: sending, by a routing controller, an optical bypass establishment request to an optical transmission controller to enable the optical transmission controller to allocate an optical bypass based on the optical bypass establishment request, to set a first stream forward entry corresponding to the optical bypass for each optical transmission device in the optical bypass, to send the set first stream forward entry to the corresponding optical transmission device, and to send an establishment success notification to the routing controller, wherein the optical bypass establishment request carries information about an ingress node which is one of the one or more routing devices, information about an egress node which is one of the one or more routing devices, and a required bandwidth, wherein information about the ingress node and information about the egress node comprise a device identification of an optical transmission device connected to the ingress node, a port identification of a port of the optical transmission device connected to the ingress node, a device identification of an optical transmission device connected to the egress node, and a port identification of a port of the optical transmission device connected to the egress node, and wherein the establishment success notification indicates that the optical transmission controller has allocated the optical bypass based on the optical bypass establishment request, set a first stream forward entry corresponding to the optical bypass for each optical transmission device in the optical bypass, and sent the set first stream forward entry to the corresponding optical transmission device; receiving, by the routing controller, the establishment success notification sent by the optical transmission controller; responsive to receiving the establishment success notification sent by the optical transmission controller, setting, by the routing controller, a second stream forward entry corresponding to the optical bypass for the ingress node and the egress node; and sending, by the routing controller, the set second stream forward entry to the ingress node and the egress node.