Help Center> Global Accelerator> User Guide> Listeners> Overview
Updated on 2023-07-31 GMT+08:00
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Overview

Each global accelerator has at least one listener for listening to requests and distributing the requests to endpoints using the load balancing algorithm.

Protocols Supported by Listeners

Table 1 Protocols supported by listeners

OSI Layer

Protocol

Description

Scenarios

Layer 4

TCP
  • Source IP address-based sticky sessions
  • Fast data transfer
  • File transfer, email sending and receiving, remote login, and other scenarios that require high reliability and high data accuracy
  • Web applications that need to be robust and require high performance to process a large number of concurrent requests

Layer 4

UDP
  • Relatively low reliability
  • Fast data transfer

Video chats, gaming, real-time financial quotations, and other scenarios that require quick response

Listening Ports

Table 2 Listening ports

Protocol

Port Range

Description

TCP

1–65535

Port 22 is used by the system and are not recommended.

Multiple ports or port ranges are separated by commas (,).

UDP

1–65535

Port 4789 is used by the system and are not recommended.

Multiple ports or port ranges are separated by commas (,).
Parent topic: Listeners