US 2020/0404733 A1 · SESSION MANAGEMENT METHOD, DEVICE, AND SYSTEM

Abstract

Embodiments provide a method, a device, and a system; to implement session management on a UPF network element. The method includes: determining, by a network device, that a first logical interface group on a first UPF network element needs to be migrated; determining, by the network device, a second UPF network element for the first logical interface group; sending, by the network device to the second UPF network element, configuration information of the first logical interface group and information about a first IP address segment corresponding to the first logical interface group, to restore the configuration information of the first logical interface group and the information about the first IP address segment on the second UPF network element; and sending, by the network device, a first message used to restore, on the second UPF network element, information about one or more sessions corresponding to the first logical interface group.

Claims20

Dependent claims

A session management method, wherein the method comprises:

determining, by a network device, that a first logical interface group on a first user plane function network element needs to be migrated, wherein the first logical interface group comprises a group of interface addresses;
determining, by the network device, a second user plane function network element for the first logical interface group;
sending, by the network device to the second user plane function network element, configuration information of the first logical interface group and information about a first internet protocol (IP) address segment corresponding to the first logical interface group, to restore the configuration information of the first logical interface group and the information about the first IP address segment on the second user plane function network element;
and
sending, by the network device, a first message, wherein the first message is used to restore, on the second user plane function network element, information about one or more sessions corresponding to the first logical interface group.

2 more elements

A session management method, wherein the method comprises:

receiving, by a second user plane function network element from a network device, configuration information of a first logical interface group and information about a first internet protocol (IP) address segment corresponding to the first logical interface group, wherein the first logical interface group comprises a group of interface addresses;
receiving, by the second user plane function network element, a seventh message, wherein the seventh message is used to restore, on the second user plane function network element, information about one or more sessions corresponding to the first logical interface group;
restoring, by the second user plane function network element, the configuration information of the first logical interface group and the information about the first IP address segment on the second user plane function network element based on the configuration information of the first logical interface group and the information about the first IP address segment, and advertising a routing policy for the first IP address segment, wherein the routing policy is used to route data to the second user plane function network element;
and
restoring, by the second user plane function network on the second user plane function network element based on the seventh message, the information about the one or more sessions corresponding to the first logical interface group.

2 more elements

Dependencies are inferred from the claim text.

Session management method, device, and system

Life of this patent

Session management method, device, and system

Life of this patent

Abstract

Claims20