Link protection method and network equipment

A network device and link technology, applied in the field of communication, can solve problems such as packet loss or interruption, affecting other node services, etc.

Inactive Publication Date: 2013-10-09
BEIJING HUAWEI DIGITAL TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

But at the same time, a problem arises: each node on the access ring needs to learn the MAC addresses of all nodes, which increases the MAC address table of each node on the ring, and a single point of failure on any node on the ring may cause Affect the business of other nodes
If you only rely on backhaul traffic to learn new MAC entries, packet loss or interruption may occur for a long time

Method used

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  • Link protection method and network equipment
  • Link protection method and network equipment
  • Link protection method and network equipment

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Embodiment Construction

[0047] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. However, it should be noted that the following embodiments are only examples for helping to understand the technical solutions, and are not intended to limit the present invention.

[0048] One method embodiment of the present invention is as follows.

[0049] In a communication network, an open loop including multiple user access devices and two user-side operator edge equipment (UPE) is connected to the operator network, and the two ends of the open loop are the two UPEs, The two UPEs are respectively connected to two network-side operator edge equipment (NPE) of the operator network. Preferably, the NPE is an operator edge device aggregation node (PEAGG).

[0050] Such as figure 1 Said, preferably, in this embodiment, the multiple user access devices are 5 switches (SW), which are respectively switches 1-5, and the two UPEs are UPE-A and ...

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Abstract

The invention relates to a link protection method and network equipment. The method comprises the following steps: configuring open-loop peer bidirectional forwarding detection (peer BFD) on two pieces of user-facing provider edge (UPE); respectively configuring link BFD for at least one piece of open-loop user access equipment on two pieces of UPE; and configuring a virtual route redundancy protocol (VRRP) for a first virtual local area network (VLAN) in all pieces of VLAN in at least one piece of user access equipment. The method disclosed by the invention has the advantages that the spare UPE of the first VLAN can quickly sense faults when the open loop has port faults, the spare UPE is configured as the new primary UPE for the first VLAN, the media access control (MAC) addresses of equipment on the open loop and a network provider edge (NPE) are cleared, and thus the flow of the first VLAN is avoided from interrupting.

Description

technical field [0001] The present invention relates to the communication field, in particular to a link protection method and network equipment. Background technique [0002] The metropolitan area network consists of one or more metropolitan Ethernet (ME) areas, and each ME area includes network-side carrier edge equipment (NPE), broadband access server (BRAS), and one or more user-side carrier edge equipment. Equipment (UPE). The NPE is the core device in the ME area. It connects up to the core of the MAN, down to the UPE ring or tree in the ME area, and connects to the BRAS in the ME area. As a PE device in a single ME area, UPE is responsible for accessing digital subscriber line access multiplexer (DSLAM), Ethernet switch, multi-service access node (MSAN) and virtual private network user-side equipment (VPN CE) equipment. [0003] Most enterprise networks are connected to the UPE through the aggregation switch using a ring structure to provide high reliability and com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L12/70H04L45/28
Inventor 陈金峰沈华张强吴圣伟
Owner BEIJING HUAWEI DIGITAL TECH
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