Bandwidth measurement method and measurement device

A measurement device, comprising:

• a transceiver, configured to:
• send a first test packet on a test path, wherein the first test packet comprises a first segment routing (SR) label, the test path comprises a to-be-measured link, and the first SR label indicating a forwarding relationship of the first test packet on the to-be-measured link;
• and
• send a second test packet on the test path, wherein the second test packet comprises a second SR label, the second SR label indicating a forwarding relationship of the second test packet on the to-be-measured link, and the second SR label and the first SR label having different quantities of label layers;
• and
• processor, configured to:
• set at least one of a quantity of label layers in the first SR label or a quantity of label layers in the second SR label as a reference quantity of label layers for bandwidth measurement, and determine an available bandwidth on the to-be-measured link based on the reference quantity of label layers in response to the to-be-measured link failing to be congested with first test packets and being congested with second test packets.

A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores an instruction, and the instruction causes a computer to execute a method, the method comprising:

• sending a first test packet on a test path, wherein the first test packet comprises a first segment routing (SR) label, the test path comprises a to-be-measured link, and the first SR label indicating a forwarding relationship of the first test packet on the to-be-measured link;
• sending a second test packet on the test path, wherein the second test packet comprises a second SR label, the second SR label indicating a forwarding relationship of the second test packet on the to-be-measured link, and the second SR label and the first SR label having different quantities of label layers;
• and
• setting at least one of a quantity of label layers in the first SR label or a quantity of label layers in the second SR label as a reference quantity of label layers for bandwidth measurement, and determining an available bandwidth on the to-be-measured link based on the reference quantity of label layers in response to the to-be-measured link failing to be congested with first test packets and being congested with second test packets.