Method and device for implementing multicast networking in private network trunking system

Abstract

The invention provides a method and a device for realizing multicast networking in a private network trunking system. The private network trunking system comprises a core network and a base station. The core network and the base station are connected through a communication network. The method comprises the following steps of: determining a networking type of the communication network; According to the multicast networking strategy corresponding to the networking type of the communication network in advance, the multicast networking configuration is carried out on the communication network sothat the network equipment in the communication networking generates a multicast forwarding table based on the multicast networking configuration, and multicast data messages from the core network areforwarded to base station members according to the multicast forwarding table. The invention can reduce the processing pressure of the base station and avoid the waste of empty interface resources.

Description

Technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for realizing multicast networking in a private network cluster system. Background technique [0002] There are currently two main implementation schemes for the replication and distribution of group services in private networks: [0003] 1. Use unicast networking to realize private network groups. After receiving the group service message, the core network locally copies the message, and sends the copied message to the corresponding base station through unicast. [0004] 2. Use multicast networking to realize private network groups. Multicast networking is adopted between the core network and the base station. As the multicast source, the core network encapsulates the multicast IP address after receiving the group service message and sends it to the multicast router. Group services are propagated in a multicast manner between the core network and th...

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Problems solved by technology

However, this will cause the full amount of group traffic to be sent to all base stations, and the base station or terminal will select and receive it, which will have a great impact on the processing performance of the base station, and will also cause waste of air interface resources, and the concurrency specification of the group will also be affected. greater impact

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