Patent ID: 11863516
Assignee: ZTE CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A system for implementing carrier grade network address translation, comprising a forwarding plane and a control plane;
wherein the forwarding plane and the control plane are disposed in different electronic devices;
the forwarding plane is configured to:
transmit a first request to the control plane, wherein the first request is used for applying to the control plane for a public network address range; receive a first response returned by the control plane, wherein the first response comprises allocated public network address range information; receive a public network address allocated to a user by the control plane according to the public network address range; receive a private network address allocated to the user by the control plane; perform, according to the public network address and the private network address, public and private network address translation on received service traffic of the user; receive a second request transmitted from the control plane, wherein the second request is used for querying a state of the public network address range; and return a second response to the control plane, wherein the second response comprises the state of the public network address range; and
the control plane is configured to:
receive the first request transmitted from the forwarding plane, allocate the public network address range information to the forwarding plane, and return the first response to the forwarding plane; allocate the public network address to the user according to the public network address range information, and transmit the public network address to the forwarding plane; allocate the private network address to the user, and transmit the private network address to the forwarding plane; transmit a second request to the forwarding plane, wherein the second request is used for querying a state of the public network address range; and receive a second response returned by the forwarding plane, wherein the second response comprises the state of the public network address range.