Enabling or Disabling Multicast

Last updated: 2021-05-20 10:20:20

    This document describes how to enable or disable multicast for VPCs.

    Background

    Multicast and broadcast are modes of one-to-many communication, which can help enterprises reduce network bandwidth consumption and network load through point-to-multipoint efficient data transmission.
    If unicast is used, the sending server needs to separately send to N servers for total N times. If multicast is used, the server sends the same data to N servers only once, which reduces server resource consumption and also bandwidth resources of the backbone network.

    说明:

    The broadcast and multicast features are currently in beta. To try it out, please submit an application.

    • Multicast: Tencent Cloud provides multicast in a VPC.
    • Broadcast: Tencent Cloud provides broadcast in a subnet.

    Use Cases

    Multicast and broadcast are mostly used in the financial and game industries:

    • Broadcast services or market data of the financial industry. For example, after obtaining stock prices and other real-time data, brokers can broadcast stock data to multiple clients in real time, effectively reducing network load.
    • For the game industry, broadcast and multicast are mainly used for heartbeat holding between multiple servers.

    Directions

    Enabling multicast

    1. Log in to the VPC console.
    2. In the VPC list, locate the VPC for which you want to enable multicast, and click Enable under the Multicast column.

    Disabling multicast

    1. Log in to the VPC console.
    2. In the VPC list, locate the VPC for which you want to disable multicast, and click Disable under the Multicast column.

    Relevant Operations

    For detailed directions regarding the subnet broadcast, see Enabling or Disabling the Broadcasting and Multicasting.