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DocumentationVirtual Private CloudOperation GuideVirtual Private Cloud (VPC)Enabling or Disabling Multicast
Enabling or Disabling Multicast
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Last updated: 2024-10-22 15:40:14
Enabling or Disabling Multicast
Last updated: 2024-10-22 15:40:14
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This document describes how to enable or disable multicast for VPCs.

Background

Broadcast and multicast are modes of one-to-many communication, which can save businesses on the network bandwidth and reduce network load through point-to-multipoint efficient data transmission. In the unicast mode, the initiating server sends data to N servers separately. If the multicast mode, the server sends the same data to N servers in once, which reduces the server resource consumption and also the bandwidth resource of the backbone network.
Note:
The trial period has ended. Please stay tuned for the official launch.
Multicast and broadcast are available in Beijing, Shanghai, Guangzhou, Chengdu, Chongqing, Nanjing, Hong Kong, Singapore, Seoul, Tokyo, Bangkok, Silicon Valley, Virginia and Frankfurt.
For single-VPC multicast and broadcast, up to 50,000 PPS and 190 Mbps are supported.
Multicast: Tencent Cloud supports multicast on the VPC dimension.
Broadcast: Tencent Cloud supports broadcast on the subnet dimension.

Overview

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.

How It Works

Enabling multicast

1. Log in to the VPC console.
2. In the VPC list, locate the target VPC, and toggle on Multicast.

Disabling multicast

1. Log in to the VPC console.
2. In the VPC list, locate the target VPC, and toggle off Multicast.

More

For detailed directions regarding the subnet broadcast, see Enabling/Disabling Broadcast.
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