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Method for judging pseudo wire connection state in packet-switching network and service apparatus

A technology of packet switching network and service equipment, which is applied in the field of judging the connection state of pseudo-wire, and can solve the problems such as the inapplicability of PW state detection

Inactive Publication Date: 2006-12-13
HUAWEI TECH CO LTD
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Problems solved by technology

[0010] The technical problem to be solved by the present invention is: to overcome the deficiency that the OAM defect detection in the prior art cannot be applied to the PW state detection, provide a method and service equipment for judging the connection state of the pseudo-wire in the packet switching network, and realize the effective completion of the PW by using the OAM method. Data Plane Connectivity Detection

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  • Method for judging pseudo wire connection state in packet-switching network and service apparatus
  • Method for judging pseudo wire connection state in packet-switching network and service apparatus

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Embodiment Construction

[0032] Below according to accompanying drawing and embodiment the present invention will be described in further detail:

[0033] There are two ways to implement the OAM function. The first is to define a dedicated OAM label for network performance monitoring and fault alarm, which is similar to OAM cells in ATM; the second is similar to Ping in traditional IP networks. Discover and locate network faults by simulating ICMP (Internet Control Message Protocol) echo request and reply. In the present invention, the above two OAM implementation methods are combined, namely: define a dedicated OAM label, and perform PW fault detection by simulating ICMP echo request and reply.

[0034] Such as figure 1 As shown, PE1 is responsible for sending the OAM message (request), which is called the PW OAM active party in this document; after receiving the OAM message, PE2 replies with the corresponding OAM message (reply), and is called the PW OAM passive party in this document. Through the...

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Abstract

The invention discloses a judging method of false path connecting condition in the packet-switching network, which is characterized by the following: increasing false path operational management and maintenance report to detect the interconnection condition of false path; receiving the report through end service equipment; responding corresponding report; regarding the false path normal among service equipments after the local end service equipment receives the respond report within preset time. The invention proceeds operational management and maintenance report sending, receiving and disposal for false path through OAM mode, which finishes detecting connectivity of PW data plane effectively.

Description

technical field [0001] The invention relates to the field of packet switching network technology, in particular to a method and service equipment for judging the connection state of a pseudo-wire in a packet switching network. Background technique [0002] At present, when operators provide multiple services, they basically adopt a parallel or "overlapping" approach: build and maintain multiple networks, and use different access devices for each different service at the presentation point. In addition to making network planning more complicated, it is also expensive both in terms of construction costs and operating costs. Therefore, when providing multiple services, in order to reduce construction and operation costs, operators hope to find a method that can provide multiple services on a public packet switching network (PSN). [0003] In order to provide a unified multi-service network platform, the IETF started the standardization work of "X over PSN" for transmitting any...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/24
Inventor 张华琛霍霆
Owner HUAWEI TECH CO LTD
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