Patent ID: 11888982
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 3:
4. The method of claim 2, wherein when the SA is the IPSec SA which is a child SA of the IKE SA, the first rekey request further carries a TS payload carrying a flow information associated with the first network device when there is a change in the flow information associated with the first network device;
the first rekey response does not carry a TS payload carrying a flow information associated with the second network device when there is no change in the flow information associated with the second network device and a currently used flow information associated with the second network device is present in the flow information associated with the first network device carried in the first rekey request;
the rekeying the SA by the first network device is further performed according to the currently used flow information associated with the second network device.