Method and device for maintaining two-layer multicast forwarding table items

A technology of multicast forwarding tables and forwarding table items, which is applied in digital transmission systems, electrical components, transmission systems, etc., and can solve problems such as being unable to act as a proxy for hosts, recording host equipment 1 and host equipment 2, etc.

Active Publication Date: 2014-07-30
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Obviously, because the IGMP / MLD proxy device cannot record the group information of host device 1 and host device 2 in the group membership database, the IGMP / MLD proxy device cannot proxy the host behavior of host device 1 and host device 2, that is, when the host device When 1 and host device 2 also need to join a multicast group and receive traffic, the IGMP / MLD proxy device cannot deliver traffic to host device 1 and host device 2

Method used

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  • Method and device for maintaining two-layer multicast forwarding table items
  • Method and device for maintaining two-layer multicast forwarding table items
  • Method and device for maintaining two-layer multicast forwarding table items

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Embodiment Construction

[0023]In view of the problems existing in the prior art, the embodiment of the present invention provides a method for maintaining a Layer 2 multicast forwarding entry, which method is applied to a network device, an IGMP / MLD proxy device (i.e. an IGMP proxy device or an MLD proxy device) and the network of the host device. The IGMP / MLD proxy device is connected to the network device through an uplink VLAN interface, and the uplink VLAN interface is composed of two or more physical interfaces, and one of the two or more physical interfaces is connected to the host device.

[0024] by figure 1 Be the application scenario schematic diagram of the embodiment of the present invention, IGMP / MLD agent equipment is connected with network equipment (S) by VLAN interface, this moment, this VLAN interface is an uplink interface, promptly this VLAN interface is an uplink VLAN interface; In addition, IGMP / MLD agent The device is connected to the host device 4 through the Ethernet interfa...

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Abstract

The invention discloses a method and device for maintaining two-layer multicast forwarding table items. The method includes the steps that IGMP/MLD proxy equipment sends query messages through a physical interface arranged in an uplink VLAN interface and connected with host equipment; after the IGMP/MLD proxy equipment receives multicast adding messages through the physical interface arranged in the uplink VLAN interface and connected with the host equipment, the corresponding relation between a multicast group carried by the multicast adding messages and needing adding to the host equipment and the physical interface receiving the multicast adding messages is recorded in the two-layer multicast forwarding table items. According to the method and device, forwarding of the multicast messages can be managed and controlled, so that the goal of distributing the multicast messages on the uplink VLAN interface according to the requirement is achieved.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a method and equipment for maintaining Layer 2 multicast forwarding entries in a multicast application scenario. Background technique [0002] In some simple tree network topologies, complex multicast routing protocols (such as PIM (Protocol Independent Multicast, Protocol Independent Multicast) protocol) do not need to be run on edge devices, and by configuring IGMP (Internet Group Management Protocol, Internet Multicast Group Management Protocol) / MLD (Multicast Listener Discovery Protocol, Multicast Listener Discovery Protocol) agent, to realize the multicast routing function. An edge device configured with an IGMP / MLD proxy can be called an IGMP / MLD proxy device. The IGMP / MLD proxy device can replace a network device (that is, an upstream network device) to interact with a host device (that is, a downstream host device). At this time, the IGMP / MLD The MLD...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/761H04L12/741H04L45/16H04L45/74
Inventor 郝滨
Owner NEW H3C TECH CO LTD
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