US 11,991,061 B2
Processing local area network diagnostic data
Francis Scahill, London (GB); Simon Ringland, London (GB); and Timothy Twell, London (GB)
Assigned to British Telecommunications Public Limited Company, (GB)
Appl. No. 17/250,242
Filed by BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY, London (GB)
PCT Filed Jun. 21, 2019, PCT No. PCT/EP2019/066513
§ 371(c)(1), (2) Date Dec. 21, 2020,
PCT Pub. No. WO2020/002159, PCT Pub. Date Jan. 2, 2020.
Claims priority of application No. 18179579 (EP), filed on Jun. 25, 2018.
Prior Publication US 2021/0160161 A1, May 27, 2021
Int. Cl. H04L 43/0817 (2022.01); H04L 43/04 (2022.01); H04L 43/06 (2022.01); H04L 43/10 (2022.01)
CPC H04L 43/0817 (2013.01) [H04L 43/04 (2013.01); H04L 43/06 (2013.01); H04L 43/10 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method of analyzing performance of a local area network (LAN) by processing LAN diagnostic data obtained in respect of the LAN, the LAN having at least one user-device located therein operable to communicate via a LAN gateway device with one or more remote devices in a communications network outside the LAN, the LAN diagnostic data comprising a plurality of data units carrying data relating to performance characteristics of the LAN, the plurality of data units comprising fields having field-values stored therein, the method comprising:
calculating, using the LAN gateway device, a data-unit-value for each of the plurality of data units, the data-unit-value for a data unit being calculated according to a predetermined function of one or more field-values stored in one or more of the fields in the data unit;
identifying, using the LAN gateway device, a first data unit and a second data unit from the plurality of data units as being similar according to predetermined criteria in dependence on a comparison of respective data-unit-values, the second data unit having at least one field-value stored in at least one field which differs from a corresponding field-value stored in at least one corresponding field of the first data unit;
in response to such an identification, creating, using the LAN gateway device, a third data unit comprising at least one field containing a field-value indicative of the first data unit and at least one field containing an indication of the at least one field-value which differs from the corresponding field-value stored in the corresponding field of the first data unit; and then
sending, using the LAN gateway device, the first data unit and the third data unit from the LAN for LAN performance analysis by a remote network diagnostic device in the communications network outside the LAN.