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Pseudowire dual-homing protection control method and communication equipment

A dual-homing protection and communication equipment technology, applied in the field of communication, can solve the problem of inconsistency of the pseudo-wire protection status between the main control board and the line card, and achieve the effect of ensuring the status of the pseudo-wire protection

Active Publication Date: 2020-03-17
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main technical problem to be solved by the present invention is to provide a pseudo-wire dual-homing protection control method and communication equipment to solve the problem of inconsistent pseudo-wire protection status between the main control board and the line card in the existing communication equipment due to abnormal communication between boards

Method used

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  • Pseudowire dual-homing protection control method and communication equipment
  • Pseudowire dual-homing protection control method and communication equipment
  • Pseudowire dual-homing protection control method and communication equipment

Examples

Experimental program
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Effect test

Embodiment 1

[0036] The pseudo-wire dual-homing protection control method provided in this embodiment is mainly applied to pseudo-wire dual-homing protection communication equipment. The pseudo-wire dual-homing protection communication equipment includes a main control board and a line card; Control board communication connection; for the method, please refer to image 3shown, including:

[0037] Step 301: When the line card detects an alarm on the active pseudowire link, it switches to the standby pseudowire link, and sends an alarm notification to the main control board;

[0038] In this step, the line card can detect whether the link is faulty through BFD, MPLS OAM and other detection mechanisms; In this step, the line card sends an alarm notification to the main control board through inter-board communication to notify the main control layer of the main control board of the main pseudo-wire link. In addition to the failure of the link, it needs to be switched to the standby pseudowir...

Embodiment 2

[0049] This embodiment provides a pseudowire dual-homing protection communication device, please refer to Figure 4 As shown, it includes main control board 2 and line card 1; line card 1 is used to switch to the standby pseudo-wire link when an alarm is detected on the main pseudo-wire link currently in working state, and send an alarm notification to the main control board and judge whether the main control board 2 receives the alarm notification normally, if not, send the alarm notification to the main control board 2 again.

[0050] Line card 1 can specifically detect whether the link is faulty through BFD, MPLS OAM and other detection mechanisms; in this step, switching to the standby pseudo-line link mainly refers to the service forwarding plane of line card 1. After the line card detects an alarm, the main pseudo-line The line link is switched to the standby pseudo-wire link to ensure the normal forwarding of service data as much as possible; the line card 1 sends an al...

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Abstract

The invention discloses a pseudowire dual-homing protection control method and a communication device. When the line card of the communication device detects that an alarm occurs on the main pseudowire link currently in the working state, it switches to the standby pseudowire link and sends a notification to the communication device. The main control board sends an alarm notification; then the line card judges whether the main control board has received the alarm notification sent by it normally. If not, it indicates that there is an abnormality in the inter-board communication. The main control board can normally receive and sense the alarm, and perform corresponding link switching accordingly, thereby ensuring that the main control board and the line card have the same pseudo-wire protection status.

Description

technical field [0001] The invention relates to the communication field, in particular to a pseudowire dual-homing protection control method and communication equipment. Background technique [0002] In the MPLS (Multiprotocol Label Switching) communication network, L2VPN (Virtual Private Network, Virtual Private Network) provides Layer 2 VPN services based on MPLS networks, enabling operators to provide different data link-based VPN services on a unified MPLS network. Layer 2 VPN, including ATM, FR, VLAN, Ethernet, PPP, etc. Simply put, MPLS L2VPN transparently transmits user Layer 2 data on the MPLS network. From the user's point of view, the MPLS network is a Layer 2 switching network, which can establish Layer 2 connections between different nodes. [0003] If only one PW (PseudoWire) is established between two PEs (Provider Edges), when the PW fails, the PEs will not be able to communicate. MPLS L2VPN supports PW redundancy protection function: L2VPN-FRR is also call...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L1/22H04L45/24
CPCH04L1/22H04L41/0631H04L41/0654
Inventor 刘小飞席媛媛
Owner ZTE CORP