Abstract: A multicast traffic transmission method includes: detecting (S201) whether a transmission link between a designed forwarder (DF) and a traffic reception device is abnormal; and when the transmission link between the DF and the traffic reception device is abnormal, sending (S202) a first request to a backup designed forwarder (BDF). A packet of the first request includes a protection mark and address information about the traffic reception device, and the first request is used for requesting the BDF to forward traffic to the traffic reception device.

Abstract: A method for notifying binding information, including: acquiring, by an allocation node, SR-TE path information; binding, by the allocation node, an IPV6 SID corresponding to the SR-TE path information with the SR-TE path information so as to obtain SRV6 binding information between the SR-TE path information and the IPV6 SID; and notifying, by the allocation node, the SRV6 binding information to a preset node through an extended PCEP.

Abstract: A multicast traffic transmission method includes: detecting (S201) whether a transmission link between a designed forwarder (DF) and a traffic reception device is abnormal; and when the transmission link between the DF and the traffic reception device is abnormal, sending (S202) a first request to a backup designed forwarder (BDF). A packet of the first request includes a protection mark and address information about the traffic reception device, and the first request is used for requesting the BDF to forward traffic to the traffic reception device.