IPsec load balancing in a session-aware load balanced cluster (SLBC) network device
US11968237B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2022 |
| Grant date | Apr 23, 2024 |
| Priority date | — |
| Expiry date | Nov 16, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0435
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A processing blade is assigned from the plurality of processing blades to a session of data packets. The load balancing engine manages a session table and an IPsec routing table by updating the session table with a particular security engine card assigned to the session and by updating the IPsec routing table for storing a remote IP address for a particular session. Outbound raw data packets of a particular session are parsed for matching cleartext tuple information prior to IPsec encryption, and inbound encrypted data packets of the particular session are parsed for matching cipher tuple information prior to IPsec decryption. Inbound data packets assigned to the processing blade from the session table are parsed and forwarded to the station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.