Patent ID: 11876678
Assignee: NEW H3C TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. The method of claim 1, wherein, the method further comprises:
receiving a first upstream flow entry sent by a software defined network (SDN) controller; wherein, the first upstream flow entry is used by the AC to perform centralized forwarding on upstream data messages; the first upstream flow entry comprises a destination Internet protocol (IP) address, a virtual local area network (VLAN) value, a destination media access control (MAC) address and an identifier of a wireless virtual interface via which a terminal accesses an AP;
when an upstream data message forwarded by a first AP is received, and a destination IP address, a VLAN value and a destination MAC address comprised in the upstream data message match respectively with the destination IP address, the VLAN value and the destination MAC address comprised in the first upstream flow entry, determining whether a wireless virtual interface via which the first AP receives the upstream data message is a wireless virtual interface corresponding to the identifier comprised in the first upstream flow entry; and
if the wireless virtual interface via which the first AP receives the upstream data message is the wireless virtual interface corresponding to the identifier comprised in the first upstream flow entry, forwarding the upstream data message to the destination IP address based on the first upstream flow entry;, or,
wherein the method further comprises:
receiving a first downstream flow entry sent by the SDN controller; wherein, the first downstream flow entry is used by the AC to perform centralized forwarding on downstream data messages; the first downstream flow entry comprises a destination IP address, a VLAN value, a destination MAC address and an AP identifier;
when a downstream data message is received, and a destination IP address, a VLAN value and a destination MAC address comprised in the downstream data message match respectively with the destination IP address, the VLAN value and the destination MAC address comprised in the first downstream flow entry, determining whether the first AP for forwarding the downstream data message is an AP corresponding to the AP identifier in the first downstream flow entry; and
if the first AP for forwarding the downstream data message is the AP corresponding to the AP identifier in the first downstream flow entry, sending the downstream data message to the first AP via a wireless interface connected to the first AP based on the first downstream flow entry.