Method for sending connectivity error detection protocol message and forwarding device

A technology for connecting error detection and forwarding equipment, which is applied in the field of network communication, can solve problems such as increasing the burden on forwarding chips and CPUs, wasting network bandwidth, increasing equipment load, etc., and achieves the effects of saving network bandwidth, reducing equipment load, and reducing load

Active Publication Date: 2015-09-16
XINHUASAN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] This application provides a method for sending a connectivity error detection protocol message and a forwarding device to solve the problem in the prior art that a device configured with an inward MEP needs to process and send a large number of CCM messages, which aggravates the forwarding in the device The burden on the chip and CPU reduces the performance of the device; a large number of CCM messages sent to the LAN also waste network bandwidth; moreover, after receiving these large number of CCM messages, other devices in the network also need to check the message processing, increasing the load on other devices in the LAN

Method used

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  • Method for sending connectivity error detection protocol message and forwarding device
  • Method for sending connectivity error detection protocol message and forwarding device
  • Method for sending connectivity error detection protocol message and forwarding device

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0035] The CFD protocol message in the method for sending the CFD protocol message in Embodiment 1 of the present application is a multicast message, and this method can be executed by any forwarding device configured with CFD. In this embodiment, the multicast CFD protocol message can be CCM (Continuity Check Message, connection detection message), also can be LTM (Linktrace Message, link trace message) and EAIS (Ethernet Alarm Indication Signal, Ethernet Alarm indication signal) messages, etc., which are not limited in this application.

[0036] It should be noted that the first forwarding device in the following text can be any forwarding device configured with CFD, and does not refer to a specific forwarding device. The first inbound MEP can be any inbound MEP configured on the first forwarding device. It does not specifically refer to an inward MEP.

[0037] Such as figure 2 As shown, the sending method of the CFD protocol message includes the following steps:

[0038...

Embodiment 2

[0085] by figure 1 The network shown is taken as an example to further describe the method for forwarding the CFD protocol message in the first embodiment above. exist figure 1 In the network in , assuming that the first forwarding device is DeviceA, the first inward MEP is configured on the port Eth1 / 1 of Device A: MEP 100, the VLAN to which MEP 100 belongs is VLAN 100, the MD level is 6, and the MD is MD_A, MA It is MD_A+MA_C, and the service instance is instance 1; the second forwarding device is DeviceD, and the port Eth1 / 3 of Device D is configured with a second inward MEP: MEP 200, the VLAN to which MEP 200 belongs is VLAN 100, and the MD level is 6. MD is MD_A, MA is MD_A+MA_C, and the service instance is instance 1. CFD protocol messages are CCM messages.

[0086] Scenario 1: MEP Neighborhood Establishment

[0087] In this scenario, Device A performs the following operations:

[0088] In step S301, Device A receives a CCM message from MEP 200 on Device D, where th...

Embodiment 3

[0131] Regarding the method in the first embodiment above, the third embodiment of the present application provides a forwarding device to which the method can be applied. The forwarding device may be a Layer 2 forwarding device such as a switch, which is not limited in the present application. The CFD protocol message in this embodiment is a multicast message, specifically, it may be a CCM message, or it may be an LTM message, an EAIS message, etc., which is not limited in this application.

[0132] Such as Figure 5 As shown, the following modules are included in the forwarding device: a receiving module 10, a search module 20, an update module 30, a sending module 40 and a saving module 50; wherein:

[0133] The receiving module 10 is configured to receive a CFD protocol message sent by a second inbound MEP on the second forwarding device, wherein the device is configured with a first inbound MEP, and the second inbound MEP is an MEP neighbor of the first inbound MEP, Have...

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PUM

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Abstract

The invention discloses a delivery method of connectivity fault detection protocol messages and forwarding equipment. The delivery method of the connectivity fault detection protocol messages includes that first forwarding equipment receives the connectivity fault detection (CFD) protocol messages sent out by a second inner directional maintenance association end point (MEP) on second forwarding equipment. According to a media access control (MAC) address of the second forwarding equipment and a marking of the second inner directional MEP carried by the CFD protocol messages, matching table terms are searched in a CFD information table which is corresponding to a first inner directional MEP. If the matching table terms are not searched, table terms corresponding to the second inner directional MEP is added to the CFD information table. The table terms comprises a first port marking, the MAC address of the second forwarding equipment, the marking of the second inner directional MEP and a normal condition of the second inner directional MEP. The first port marking is the marking of a first port which receives the CFD protocol messages. When the first inner directional MEP sends out the CFD protocol messages, and the second inner directional MEP is in the normal condition, the CFD protocol messages are sent to the second forwarding equipment in a unicast mode according to the table terms corresponding to the second inner directional MEP in the CFD information table.

Description

technical field [0001] The present application relates to the technical field of network communication, in particular to a method for sending a connectivity error detection protocol message and a forwarding device. Background technique [0002] CFD (Connectivity Fault Detection, connectivity error detection) is an end-to-end OAM (Operations, Administration and Maintenance) mechanism based on VLAN (Virtual Local Area Network, Virtual Local Area Network) in a Layer 2 network. It is mainly used for Detect link connectivity in the Layer 2 network, and confirm and locate faults when they occur. [0003] The basic concepts of CFD include: [0004] 1. Maintenance domain [0005] The maintenance domain (Maintenance Domain, MD) indicates the network covered by connectivity error detection, and its boundary is defined by a series of maintenance endpoints configured on the port. The maintenance domain is identified by "maintenance domain name". In order to accurately locate the fau...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/741H04L12/701H04L12/801H04L45/74
Inventor 李磊方王伟雷伟
Owner XINHUASAN INFORMATION TECH CO LTD
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