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US 12,665,838 B2Granted
Connection status detection method and related device
AssigneeHuawei Technologies Co., Ltd.
InventorXiangan Luo
Life of this patent
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Abstract
A connection status detection method used for detecting connectivity of a segment routing (SR) path between nodes is disclosed. After receiving a path detection packet, a first node responds to the path detection packet based on connectivity of an SR path between the first node and a third node, and the path detection packet is used to indicate to detect the connectivity of the segment routing (SR) path between the nodes.
Claims15
A method for detecting connection status, comprising:
- receiving, by a first node, a path detection packet from a second node, wherein connectivity of a segment routing (SR) path between the second node and the first node is detected using the path detection packet;
- and
- sending, by the first node, a response to the second node in response to the path detection packet based on connectivity of an SR path between the first node and a third node, the response notifying the second node about connectivity of an SR path between the second node and the third node,
- wherein sending, by the first node, the response to the second node in response to the path detection packet based on connectivity of the SR path between the first node and the third node comprises:
- in response to a connected state of the SR path between the first node and the third node, notifying, by the first node, the second node that the SR path between the second node and the third node is in a connected state;
- and
- in response to a non-connected state of the SR path between the first node and the third node, notifying, by the first node, the second node that the SR path between the second node and the third node is in a non-connected state,
- wherein the first node is a reflector device that generates the response using the connectivity of the SR path between the first node and the third node to indicate the connectivity of the SR path between the second node and the third node, and
- wherein the path detection packet is received by the first node based on a segment routing traffic engineering (SR-TE) policy tunnel from the second node to the third node.
6 more elements
A detection apparatus used as a first node, comprising:
- a non-transitory memory storing instructions;
- and
- at least one processor coupled to the non-transitory memory, wherein the instructions, when executed by the at least one processor, cause the detection apparatus to be configured to:
- receive a path detection packet from a second node, wherein connectivity of a segment routing (SR) path between the second node and the first node is detected using the path detection packet;
- and
- send a response to the second node in response to the path detection packet based on connectivity of an SR path between the first node and a third node, the response notifying the second node about connectivity of an SR path between the second node and the third node,
- wherein sending of the response to the second node in response to the path detection packet based on connectivity of the SR path between the first node and the third node comprises:
- in response to a connected state of the SR path between the first node and the third node, notifying the second node that the SR path between the second node and the third node is in a connected state;
- and
- in response to a non-connected state of the SR path between the first node and the third node, notifying the second node that the SR path between the second node and the third node is in a non-connected state,
- wherein the first node is a reflector device that generates the response using the connectivity of the SR path between the first node and the third node to indicate the connectivity of the SR path between the second node and the third node, and
- wherein the path detection packet is received by the first node based on a segment routing traffic engineering (SR-TE) policy tunnel from the second node to the third node.
9 more elements
A detection apparatus used as a second node, comprising:
- a non-transitory memory storing instructions;
- and
- at least one processor coupled to the non-transitory memory;
- wherein the instructions, when executed by the at least one processor, cause the detection apparatus to be configured to:
- send a path detection packet to a first node, wherein connectivity of a segment routing (SR) path between the first node and the second node is detected using the path detection packet;
- receive a response to the path detection packet from the first node, the response notifying the second node about connectivity of an SR path between the second node and a third node, wherein the response notifies the second node that the SR path between the second node and the third node is in a connected state based on that a SR path between the first node and the third node is in a connected state, and the response notifies the second node that the SR path between the second node and the third node is in a non-connected state based on that the SR path between the first node and the third node is in a non-connected state;
- and
- determine connectivity of a segment routing (SR) path between the second node and the third node based on the response,
- wherein the first node is a reflector device that generates the response using the connectivity of the SR path between the first node and the third node to indicate the connectivity of the SR path between the second node and the third node, and
- wherein the path detection packet is received by the first node based on a segment routing traffic engineering (SR-TE) policy tunnel from the second node to the third node.
7 more elements
Dependencies are inferred from the claim text.