Method for acquiring network topology and network element

Abstract

The invention discloses a method for acquiring network topology, which comprises the following steps that: A, a first port of a first network element in a PTP network transmits a management information request message including a request port identifier and a request clock mode identifier; B, after receiving the management information request message, a first port of a second network element of the PTP network transmits a management information response message at the first port, wherein the request port identifier and the request clock mode identifier in the management information response message are the request port identifier and the request clock mode identifier in the management information request message respectively, and a response port identifier and a response clock identifier in the management information response message are the port identifier of the first port of the second network element and the clock mode of the second network element respectively; and C, the first network element receives the management information response message and acquires the corresponding relation between the request port identifier and the response port identifier according to the management information response message. The invention also discloses a PTP network element.

Description

technical field [0001] The invention relates to the technical field of communication and computer network, in particular to a method and network element for acquiring network topology. Background technique [0002] Network topology refers to the specific physical (that is, real) or logical (that is, virtual) arrangement and connection mode of each network element that constitutes the network. Network topology information is the basis for network management. Network management is to manage the network in a certain way so that the network can run normally and efficiently. Its purpose is very clear, that is, to make more effective use of resources in the network. It should maintain the normal operation of the network, report and deal with it in time when the network fails, and coordinate and maintain the efficient operation of the network system. Network management is often referred to simply as network management. In the field of communication, it is generally required tha...

AI Technical Summary

Problems solved by technology

[0009] 1. When sending a PING message to an inactive or non-existent network element, it needs to wait for a long timeout (usually 20 seconds); it takes a long time to traverse all network elements;

[0010] 2. A large number of PING packets and response packets need to be sent between network elements, which introduces a large network load

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