Method, apparatus, and system for measuring network delay

A method for measuring a network delay of a network, comprising:

• determining, by an upstream target logical port (TLP), a service flow that is transmitted through the network is a target service flow according to service flow characteristic information of the service flow;
• adding, by the upstream TLP, a delay measurement flag to a data packet of the service flow;
• acquiring, by the upstream TLP, transmit-end delay measurement information of the data packet to which the delay measurement flag is added, wherein the transmit-end delay measurement information comprises transmit-end timestamp information, a service flow identifier of the service flow, and a TLP identifier of the upstream TLP;
• and
• indentifying, by a downstream TLP, the data packet to which the delay measurement flag is added;
• acquiring, by a downstream TLP, receive-end delay measurement information of the data packet, wherein the receive-end delay measurement information comprises receive-end timestamp information, a service flow identifier of the service flow, and a TLP identifier of the downstream TLP.

A method for measuring a network delay of a network, comprising:

• receiving, by a measurement control point (MCP), transmit-end delay measurement information transmitted by a data collecting point (DCP) corresponding to an upstream target logical port (TLP) and receive-end delay measurement information transmitted by a DCP corresponding to a downstream TLP, wherein the transmit-end delay measurement information comprises:
• transmit-end timestamp information, a service flow identifier of a service flow which is transmitted through the network, and a TLP identifier of the upstream TLP;
• and the receive-end delay measurement information comprises:
• receive-end timestamp information, a service flow identifier of the service flow, and a TLP identifier of the downstream TLP, and wherein the transmit-end delay measurement information and the receive-end delay measurement information are corresponding to a data packet including a delay measurement flag;
• and
• determining, by the MCP, network delay of the network according to the transmit-end delay measurement information and the receive-end delay measurement information.

A data collecting point (DCP), comprising:

• a non-transitory computer readable medium comprising computer-executable instructions;
• and
• a processor in communication with the non-transitory computer readable medium, wherein
• when the DCP is a DCP managing an upstream TLP, the processor executes the instructions to:
• acquire transmit-end delay measurement information obtained by measuring a transmitted service flow by the upstream TLP that is transmitted through a network, wherein the transmit-end delay measurement information comprises transmit-end timestamp information, a service flow identifier of the transmitted service flow, and a TLP identifier of the upstream TLP, and wherein the transmit-end delay measurement information is corresponding to a data packet including a delay measurement flag;
• and
• transmit the transmit-end delay measurement information to the MCP;
• when the DCP is a DCP managing a downstream TLP, the processor executes the instructions to:
• acquire receive-end delay measurement information obtained by measuring a received service flow by the downstream TLP that is transmitted through the network, wherein the receive-end delay measurement information comprises receive-end timestamp information, a service flow identifier of the received service flow, and a TLP identifier of the downstream TLP, and wherein the receive-end delay measurement information is corresponding to a data packet including a delay measurement flag;
• and
• transmitting the receive-end delay measurement information to the MCP,
• wherein, the transmit-end delay measurement information and the receive-end delay measurement information are used to determine a network delay of the network.

A target logical port (TLP), comprising:

• a port;
• a processor in communication with the port,
• wherein when the TLP is an upstream TLP, the processor is configured to:
• determine a first service flow transmitted through the port is a target service flow according to service flow characteristic information of the first service flow;
• add a first delay measurement flag to a first data packet of the first service flow;
• and
• acquire transmit-end delay measurement information of the first data packet to which the first delay measurement flag is added, wherein the transmit-end delay measurement information comprises transmit-end timestamp information, a service flow identifier of the first service flow, a TLP identifier of the TLP;
• wherein when the TLP is a downstream TLP, the processor is configured to:
• identify a second data packet to which a second delay measurement flag is added, acquire receive-end delay measurement information of the second data packet, and wherein the receive-end delay measurement information comprises receive-end timestamp information, a service flow identifier of a service flow that is transmitted through the port and comprises the second data packet, and a TLP identifier of the TLP.

A measurement control point (MCP), comprising:

• a non-transitory computer readable medium comprising computer-executable instructions;
• and
• a processor in communication with the non-transitory computer readable medium, wherein
• the processor executes the instructions to:
• receive transmit-end delay measurement information transmitted by a data collecting point (DCP) corresponding to an upstream target logical port (TLP) and receive-end delay measurement information transmitted by a DCP corresponding to a downstream TLP, wherein the transmit-end delay measurement information comprises transmit-end timestamp information, a service flow identifier of a service flow that is transmitted through a network, and a TLP identifier of the upstream TLP, and wherein the receive-end delay measurement information comprises receive-end timestamp information, a service flow identifier of the service flow, and a TLP identifier of the downstream TLP, and wherein the transmit-end delay measurement information and the receive-end delay measurement information are corresponding to a data packet including a delay measurement flag;
• and
• determine a network delay of the network according to the transmit-end delay measurement information and the receive-end delay measurement information.