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Internet group management protocol (IGMP) snooping processing method and system during station (STA) roaming

A technology for Internet group management and snooping processing, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve problems such as increased burden on switches, and achieve the effect of improving user experience

Active Publication Date: 2016-03-23
湖州帷幄知识产权运营有限公司
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  • Claims
  • Application Information

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Problems solved by technology

However, this approach cannot fundamentally solve the problem. For example, changing the sending cycle of IGMP query messages to within 10ms will inevitably lead to a significant increase in the burden on the IGMP server and switches in the network.

Method used

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  • Internet group management protocol (IGMP) snooping processing method and system during station (STA) roaming
  • Internet group management protocol (IGMP) snooping processing method and system during station (STA) roaming
  • Internet group management protocol (IGMP) snooping processing method and system during station (STA) roaming

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Embodiment Construction

[0025] In order to make the technical problems, technical solutions and beneficial effects solved by the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0026] figure 1 It is a schematic flowchart of a method for processing IGMP snooping when an STA roams disclosed in the present invention. refer to figure 1 , the method of the present invention comprises:

[0027] Step 101, a station (STA) associates with a first access point (AP). If the STA joins a multicast group, the first AP obtains the STA's MAC address and multicast MAC address and registers with the access controller (AC).

[0028] The specific process of this step is as follows figure 2 Shown:

[0029] 201. The STA is associated wit...

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Abstract

The invention provides an IGMP snooping processing method and system during STA roaming. The method comprises that when an STA roams from a first AP to a second AP, the second AP obtains the MAC address of the STA; if the MAC address of the STA is found in AC, a multicast MAC address corresponding to the MAC address of the STA is obtained, and an IGMP member relation message including the MAC address of the STA and the corresponding multicast MAC address is established and sent to an IGMP server; a switch obtains the multicast MAD address if finding the IGMP member relation message by monitoring, and according to the port, receiving an IGMP query message, of the switch, a <multicast address is formed, and a port>entry in the IGMP query message is received and added to an IGMP snooping route port table. The multicast message can be rapidly and accurately forwarded to the STA which carries out roaming in the roaming scene.

Description

technical field [0001] The present invention relates to the technical field of Wireless Local Area Networks (WLAN, Wireless Local Area Networks), in particular to a method and system for processing Internet Group Management Protocol snooping (IGMP snooping, Internet Group Management Protocol snooping) when a station (STA) roams. Background technique [0002] IGMPSnooping is a multicast restriction mechanism running on Layer 2 devices, used to manage and control multicast groups. The Layer 2 device running IGMPSnooping analyzes the received IGMP message, establishes a mapping relationship between ports and MAC multicast addresses, and forwards multicast data according to the mapping relationship. Specifically, when the Layer 2 device does not run IGMPSnooping, the multicast data is broadcast on the Layer 2; when the Layer 2 device runs IGMPSnooping, the multicast data of the known multicast group will not be broadcast on the Layers are multicast to designated receivers. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/761H04L12/741H04L45/16H04L45/74
CPCH04L45/16H04L45/74
Inventor 王斌
Owner 湖州帷幄知识产权运营有限公司
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