Cluster expansion method, cluster communication system and communication system, method

Abstract

The embodiment of the present invention provides a cluster extension method, a cluster communication system, a communication system, and a method, so as to reduce the complexity of the DUT and maintain the topology of the original three-layer network. The method includes: at least two devices under test DUTs located between the first switching device and the second switching device transparently transmit the link aggregation control protocol LACP message, so that the first switching device and the second switching device negotiate Link aggregation group LAG aggregation characteristics; after the negotiation of the link aggregation group LAG aggregation characteristics is successful, the first switching device and the second switching device distribute traffic to the at least two devices under test DUT for transmission. The method provided by the invention avoids the realization of complex routing protocols on the DUT, reduces the requirements for the DUT, and no longer has hard requirements for the network attributes and network topology of the DUT, so that the original three-layer network topology can remain unchanged. Thus avoiding the tedious and high cost of changing the network topology.

Description

technical field [0001] The invention relates to the field of Internet communication, in particular to a cluster expansion method, a cluster communication system, a communication system and a method. Background technique [0002] Internet Data Center (IDC) provides large-scale, high-quality, safe and reliable professional server hosting, space rental and network wholesale bandwidth for Internet Content Providers (Internet Content Providers, ICPs), enterprises, media and various websites Waiting for business. IDC is a hosting place for hosting (Hosting) enterprises, merchants or website server groups. It is the infrastructure for the safe operation of various modes of e-commerce, and also supports enterprises and their business alliances (its distributors, suppliers, customers, etc.) A platform for implementing value chain management. IDC is not only a network concept, but also a service concept. It constitutes a part of the basic network resources and provides a high-end da...

AI Technical Summary

Problems solved by technology

[0006] 1) The complexity of the DUT is increased, the reason is that the above-mentioned existing A / A scheme relies on the VRRP protocol, and the DUT needs to support the VRRP protocol;

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