US 8,570,893 B2Granted

Method and device for measuring network performance parameters

AssigneeHuawei Technologies Co., Ltd.

InventorsXinchun Guo, Jian Li

Life of this patent

Estimating the term…

Loading patent…

Abstract

A method and a device for measuring network performance parameters are disclosed. The method includes: receiving an extended bidirectional forwarding detection (BFD) packet that includes a packet loss monitoring Type-Length-Value (TLV) and/or a time delay monitoring TLV; and calculating network performance parameters according to the packet loss monitoring TLV and/or the time delay monitoring TLV in the received extended BFD packet. The device includes: an extended BFD packet receiving module and a network performance parameter calculating module. The method and the device enables the calculating of network performance parameters and the monitoring of network performance, and therefore the problem of monitoring network performance in technical solutions in the prior art is solved.

Claims16

Dependent claims

A method for measuring network performance parameters, the method comprising:

receiving, by a first device for measuring network performance parameters, an extended bidirectional forwarding detection (BFD) packet transmitted by a second device for measuring network performance parameters, the extended BFD packet comprising a packet loss monitoring Type-Length-Value (TLV) and/or a time delay monitoring TLV;
and
calculating near-end packet loss according to the packet loss monitoring TLV and/or calculating unidirectional time delay according to the time delay monitoring TLV in the received extended BFD packet;
wherein a value field of the packet loss monitoring TLV comprises a transmit count, and the transmit count is the number of data packets that have been transmitted when the extended BFD packet is transmitted;
wherein a value field of the time delay monitoring TLV comprises a transmit timing, and the transmit timing is a local time when the extended BFD packet is transmitted;
wherein calculating the near-end packet loss is:
a near-end packet loss Packet Loss[near-end]=|TxPacketCounter_L[BFD1]−TxPacketCounter_L [BFD2]|−|RxPacketCounterL [BFD1]−RxPacketCounterL [BFD2]|,
wherein TxPacketCounter_L[BFD1] indicates the transmit count of the received extended BFD packet BFD1, TxPacketCounter_L[BFD2] indicates the transmit count of the received extended BFD packet BFD2, RxPacketCounterL[BFD1] indicates the number of data packets that have been received by calculating equipment when the extended BFD packet BFD1 is received, and RxPacketCounterL[BFD2] indicates the number of data packets that have been received by calculating equipment when the extended BFD packet BFD2 is received;
wherein calculating the unidirectional time delay is:
adding a difference between a local time when the extended BFD packet is received and the transmit timing of the extended BFD packet and a time difference of the first device and the second device.

7 more elements

A first device for measuring network performance parameters, the first device comprising:

an extended bidirectional forwarding detection (BFD) packet receiving module, configured to receive an extended BFD packet transmitted by a second device for measuring network performance parameters, extended BFD packet comprising a packet loss monitoring Type-Length-Value (TLV) and/or a time delay monitoring TLV;
and
a network performance parameter calculating module, configured to calculate near-end packet loss according to the packet loss monitoring TLV and/or unidirectional time delay according to the time delay monitoring TLV in the extended BFD packet;
wherein a value field of the packet loss monitoring TLV comprises a transmit count, and the transmit count is the number of all data packets that have been transmitted when the extended BFD packet is transmitted;
wherein a value field of the time delay monitoring TLV comprises a transmit timing, and the transmit timing is a local time when the extended BFD packet is transmitted;
wherein calculating the near-end packet loss is:
a near-end packet loss Packet Loss [near-end]=|TxPacketCounter_L[BFD1]−TxPacketCounter_L [BFD2]|−|RxPacketCounterL [BFD1]−RxPacketCounterL [BFD2]|,
wherein TxPacketCounter_L[BFD1] indicates the transmit count of the received extended BFD packet BFD1, TxPacketCounter_L[BFD2] indicates the transmit count of the received extended BFD packet BFD2, RxPacketCounterL[BFD1] indicates the number of data packets that have been received by calculating equipment when the extended BFD packet BFD1 is received, and RxPacketCounterL[BFD2] indicates the number of data packets that have been received by calculating equipment when the extended BFD packet BFD2 is received;
wherein calculating the unidirectional time delay is:
adding a difference between a local time when the extended BFD packet is received and the transmit timing of the extended BFD packet and a time difference of the first device and the second device.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/093,438Filed 25 Apr 2011 · continuation
Priority: CN 2008 1 021697325 Oct 2008
Published: US 2011/0199929 A118 Aug 2011
Granted: 29 Oct 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

H04L 43/0852
Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters: delays
H04L 43/0829
Errors, e.g. transmission errors: packet loss
H04L
Digital communication

Family

PCT/CN2009/074404Parent of this continuation · filed 12 Oct 2009
US 2011/0199929 A1Pre-grant publication · published 18 Aug 2011
US 8,570,893 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key