US 12,278,826 B2
Methods and systems of operating software-defined networks
Behnam Azvine, London (GB); and Ali Sajjad, London (GB)
Assigned to BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY, London (GB)
Appl. No. 18/695,687
Filed by BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY, London (GB)
PCT Filed Aug. 23, 2022, PCT No. PCT/EP2022/073506
§ 371(c)(1), (2) Date Mar. 26, 2024,
PCT Pub. No. WO2023/052006, PCT Pub. Date Apr. 6, 2023.
Claims priority of application No. 2113955 (GB), filed on Sep. 29, 2021.
Prior Publication US 2024/0275802 A1, Aug. 15, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 9/40 (2022.01); H04L 41/06 (2022.01); H04L 41/40 (2022.01)
CPC H04L 63/1416 (2013.01) [H04L 41/06 (2013.01); H04L 41/40 (2022.05)] 23 Claims
OG exemplary drawing
 
1. A computer-implemented method of operating a software-defined network, the method comprising:
obtaining specifications of a plurality of data plane elements which together form a path through a data plane suitable for carrying traffic associated with a category of applications and/or services;
determining, based on the specifications, which one or more of a plurality of security profiles the path is capable of complying with;
selecting one of the one or more security profiles to be an initial security profile;
routing traffic associated with the category of applications and/or services via the path in compliance with the initial security profile;
subsequently obtaining an alert that network performance conditions have worsened; and
responsive thereto:
selecting a different one of the plurality of security profiles, that is less resource-intensive than the initial security profile, to be a replacement security profile; and
routing traffic associated with the category of applications and/or services in compliance with the replacement security profile.