Mismatch detecting method, detecting device, and recording medium

Patent metadata

Field	Value
Publication number	US-9450847-B2
Application number	US-201414308781-A
Country	US
Kind code	B2
Filing date	Jun 19, 2014
Priority date	Jul 17, 2013
Publication date	Sep 20, 2016
Grant date	Sep 20, 2016

Abstract

A mismatch detecting method includes: specifying a configuration of test data in accordance with a condition in which a time when a first packet out of a plurality of packets included in the test data caused to make a round trip through a transmission path including a plurality of sections is transmitted in one section out of the plural sections in an inbound path and a time when a second packet out of the plural packets is transmitted in the one section in an outbound path overlap with each other; transmitting the test data to the transmission path in accordance with the configuration specified by the specifying; and determining a mismatch of a transmission system within the transmission path, based on a loss situation of the test data returning from the transmission path after the transmitting.

First claim

What is claimed is:

1. A mismatch detecting method comprising:
specifying a configuration of test data in accordance with a condition in which a time when a first packet out of a plurality of packets included in the test data caused to make a round trip through a transmission path including a plurality of sections is transmitted in one section out of the plurality of sections in an inbound path and a time when a second packet out of the plurality of packets is transmitted in the one section in an outbound path overlap with each other;
transmitting the test data to the transmission path in accordance with the configuration specified by the specifying; and
determining a mismatch of a transmission system within the transmission path, based on a loss situation of the test data returning from the transmission path after the transmitting,
wherein the specifying specifies a configuration where sizes of some packets out of the plurality of packets are different from a size of another packet among the plurality of packets.

2. The mismatch detecting method according to claim 1 , wherein
the condition is defined based on communication speeds in the plurality of sections or a ratio between communication speeds in the plurality of sections.

3. The mismatch detecting method according to claim 1 , wherein
the determining determines that the mismatch exists in the one section.

4. A detecting device, comprising:
a memory; and
a processor coupled to the memory and configured to:
specify a configuration of test data in accordance with a condition in which a time when a first packet out of a plurality of packets included in the test data caused to make a round trip through a transmission path including a plurality of sections is transmitted in one section out of the plurality of sections in an inbound path and a time when a second packet out of the plurality of packets is transmitted in the one section in an outbound path overlap with each other,
transmit the test data to the transmission path in accordance with the configuration specified, and
determine a mismatch of a transmission system within the transmission path, based on a loss situation of the test data returning from the transmission path after the transmitting of the test data,
wherein the processor is configured to specify a configuration where sizes of some packets out of the plurality of packets are different from a size of another packet among the plurality of packets.

5. The detecting device according to claim 4 , wherein
the condition is defined based on communication speeds in the plurality of sections or a ratio between communication speeds in the plurality of sections.

6. The detecting device according to claim 4 , wherein the processor is configured to determine that the mismatch exists in the one section.

7. A non-transitory computer-readable recording medium storing a program that causes a computer to execute a process, the process comprising:
specifying a configuration of test data in accordance with a condition in which a time when a first packet out of a plurality of packets included in the test data caused to make a round trip through a transmission path including a plurality of sections is transmitted in one section out of the plurality of sections in an inbound path and a time when a second packet out of the plurality of packets is transmitted in the one section in an outbound path overlap with each other;
transmitting the test data to the transmission path in accordance with the configuration specified by the specifying; and
determining a mismatch of a transmission system within the transmission path, based on a loss situation of the test data returning from the transmission path after the transmitting,
wherein the specifying specifies a configuration where sizes of some packets out of the plurality of packets are different from a size of another packet among the plurality of packets.

8. The non-transitory computer-readable recording medium according to claim 7 , wherein
the condition is defined based on communication speeds in the plurality of sections or a ratio between communication speeds in the plurality of sections.

9. The non-transitory computer-readable recording medium according to claim 7 , wherein
the determining determines that the mismatch exists in the one section.

Assignees

• Fujitsu Ltd

Inventors

• Yasuie Takeshi
• Nomura Yuji

Classifications

• H04L43/50

  Testing arrangements · CPC title

• H04L5/16

  Half-duplex systems; Simplex/duplex switching; Transmission of break signals {non-automatically inverting the direction of transmission} · CPC title

• H04L12/40136

  Nodes adapting their rate to the physical link properties (LAN switches H04L49/351) · CPC title

• H04L43/0829

  Packet loss · CPC title

• H04L43/0864 Primary

  Round trip delays · CPC title