Patent ID: 11943136
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. A method implemented by a network element (NE) in a network, comprising:
receiving preferred path route (PPR) information comprising a PPR identifier (PPR-ID) and a plurality of PPR-Path Description Elements (PPR-PDEs), the PPR-ID identifying a PPR graph representing a plurality of PPRs between one or more ingress NEs and one or more egress NEs, each PPR-PDE of the plurality of PPR-PDEs describing an element on the PPR graph, a second PPR-PDE comprising a source flag and a quality of service (QoS) attribute associated with a resource to be reserved along an outgoing element of the ingress NE, the source flag indicating that the second PPR-PDE identifies the ingress NE in the network;
updating a forwarding database to include a forwarding entry including the PPR-ID and the QoS attribute associated with the resource to be reserved along the outgoing element of the NE;
reserving the resource along the outgoing element of the NE in response to receiving the PPR information.