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Method for controlling number of Layer2 Ethernet ring equipment MAC address learning

A technology of MAC address and Ethernet ring network, which is applied in the field of controlling the number of forbidden address learning for layer 2 Ethernet ring network equipment media access, which can solve the problem of a large number of MAC address tables, and achieve the effect of reducing impact and low cost

Active Publication Date: 2007-11-28
NEW H3C TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0018] The technical problem solved by the present invention is to provide a method for controlling the learning of the media access control address of the two-layer Ethernet ring network device, and solve the problem of ring network access by using the learning mechanism of the MAC address in the two-layer Ethernet ring network device and the message redirection technology. The problem that the number of MAC address tables occupied by the ingress node device and the sink node device is too large

Method used

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  • Method for controlling number of Layer2 Ethernet ring equipment MAC address learning
  • Method for controlling number of Layer2 Ethernet ring equipment MAC address learning
  • Method for controlling number of Layer2 Ethernet ring equipment MAC address learning

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Embodiment Construction

[0053] In the access network part of the Layer 2 Ethernet ring network, in order to centralize all user access packets to the BRAS device for processing, generally the device between the user and the BRAS is a device for transparent transmission, and do not modify user packets Attributes. In broadband MAN networking, the ring topology of Layer 2 Ethernet ring network equipment is often used to undertake data access and aggregation work. With the continuous increase in the number of broadband access users, the Ethernet ring network of nodes on the ring network The greater the number of MAC addresses that the device needs to learn, the MAC address entries of many two-layer Ethernet ring network equipment cannot meet the requirements. Therefore, the present invention uses the MAC address in the two-layer Ethernet ring network equipment on the existing basis The advanced learning mechanism and message redirection technology control the number of MAC addresses learned by access nod...

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Abstract

A method for controlling MAC address learning number of Ethernet ring network device with layer-2 includes switching in node device to judge whether MAC address in received message belongs to VLAN of local switched in node device or not and forbidding MAC address learning in non - local VLAN at up link ; limiting MAC address learning on all loop ports in VLAN by using aggregation node device to set maximum number of loop port MAC address learning on each VLAN : selecting loop port to down - send message by aggregation node device through message reoriented mode at down link .

Description

technical field [0001] The present invention relates to a networking technology of an access network, in particular to a method for controlling the number of MAC (Media Access Control) addresses learned by a Layer 2 Ethernet ring network device; Background technique [0002] With the gradual establishment of broadband value chain and broadband business operation mode, broadband business is gradually becoming the focus of operators to expand business fields, increase revenue and enhance competitiveness. Ethernet ring network has become the mainstream technology in the construction of broadband metropolitan area network because of its low cost and easy expansion. [0003] As shown in Figure 1, it is a typical network diagram of a broadband MAN access network, including: Digital Subscriber Line Access Multiplexer (DSLAM (Digital Subscriber Line Access Multiplexer), access VLAN domain, Ethernet ring network equipment ( Including access Ethernet ring network switch and aggregati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L29/06H04L45/741
Inventor 刘建峰王玮
Owner NEW H3C TECH CO LTD
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