Method, node device and system for establishing label switched path
AssigneeHuawei Technologies Co., Ltd.
InventorsYanxing Luo, Hao Long, Min Yan
Life of this patent
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Abstract
Embodiments of the disclosure provide a method for advertising link bandwidth information. The method comprises sending a link state advertisement (LSA) message, which comprises bandwidth information of a link, to a plurality of network nodes in a network. The bandwidth information comprises a plurality of link bandwidths and availabilities corresponding to the plurality of link bandwidths respectively. Each availability is a time scale that the corresponding link bandwidth is ensured.
Claims7
A method for advertising link bandwidth information, the method comprising:
- sending a link state advertisement (LSA) message comprising bandwidth information of a link to a plurality of network nodes in a network, wherein the bandwidth information comprises a plurality of link bandwidths, and availabilities corresponding to the plurality of link bandwidths, respectively, wherein each availability is a time scale that a corresponding link bandwidth is ensured.
A method for computing a label switched path, the method comprising:
- receiving a link state advertisement (LSA) message from a microwave node, wherein the LSA message comprises bandwidth information of a link, wherein the bandwidth information comprises a plurality of link bandwidths, and availabilities corresponding to the plurality of link bandwidths, respectively, where each availability is a time scale that a corresponding link bandwidth is ensured;
- obtaining network topology information according to the LSA message;
- and
- calculating a label switching path (LSP) route based on the network topology information.
A node device comprising:
- a receiver configured to receive a connection establishment request message sent by a source node to a sink node, wherein the connection establishment request message includes bandwidth request information;
- and
- a transmitter, configured to send a link state advertisement (LSA) message comprising bandwidth information of a link to a plurality of network nodes in a network, wherein the bandwidth information comprises a plurality of link bandwidths, and availabilities corresponding to the plurality of link bandwidths, respectively, wherein each availability is a time scale that a corresponding link bandwidth is ensured.
A route computing unit comprising:
- a receiver, configured to receive a link state advertisement (LSA) message from a microwave node, wherein the LSA message comprises bandwidth information of a link, wherein the bandwidth information comprises a plurality of link bandwidths, and availabilities corresponding to the plurality of link bandwidths, respectively, where each availability is a time scale that a corresponding link bandwidth is ensured;
- and
- a processor coupled to the receiver, configured to obtain network topology information according to the LSA message;
- and calculate a label switching path (LSP) route based on the network topology information.
Dependencies are inferred from the claim text.