A method and device for publishing routes based on distributed data centers

Abstract

The invention discloses a method and device for issuing routes based on a distributed data center. The method includes: a gateway device maintains an ARP table in which an IP address is recorded; interface list, and use the network segment to filter the IP address located in the network segment in the ARP table, and determine the outgoing interface corresponding to the IP address located in the network segment; when the IP address corresponding to the network segment located in the When the outgoing interface is not in the list of excluded interfaces, the IP address located in the network segment is added to the DHR table; the gateway device obtains the IP address from the DHR table, and publishes the IP address to the external network in the form of a host route . In the embodiment of the present invention, the cumbersome manual configuration is omitted, the configuration is simplified, and at the same time, detection messages in the data center are greatly reduced, thereby saving network bandwidth.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a distributed data center-based routing publishing method and equipment. Background technique [0002] With the gradual rise of cloud computing, more and more data centers are being built. In order to make better use of data center resources and ensure high availability of services, users usually choose to deploy distributed data centers. In this case, when servers on the same network segment are deployed in multiple data centers, or virtual machines are migrated from servers in one data center to servers in another data center, how to ensure that users access server resources from the optimal path becomes a problem. the primary issues that need to be addressed. [0003] In order to solve the above-mentioned problem, in the prior art, an RHI (Route Health Injection, route health injection) manner is usually used for route advertisement. Such as figure 1 As shown...

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Problems solved by technology

[0006] However, the above method requires the deployment of health check equipment SLB in the data center, which adds additional costs to users

In addition, in order to publish the host route, the SLB in the data center needs to detect the server to decide whether to publish the host route; during this process, if the number of servers is large, the SLB needs to send a large number of There are a large number of detection packets in the memory, occupying a large amount of network bandwidth

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