Help & DocumentationCloud Load BalancerProduct IntroductionApplication and Conventional CLB comparison

Application and Conventional CLB comparison

Last updated: 2020-02-26 17:00:10

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CLB offers two types of instances: CLB (formerly "application CLB") and classic CLB.

  • Cloud Load Balancer: support TCP/UDP/HTTP/HTTPS Protocol, provide balance based on domain name and URL path, and support flexible repost.
  • Traditional Cloud Load Balancer: private network does not support HTTP/HTTPS Protocol, and the configuration method is simple.

Cloud Load Balancer can cover all the functions of the traditional Cloud Load Balancer. From Features, product performance and other considerations, it is recommended that you use the instance type is Cloud Load Balancer. A detailed comparison of the two is as follows:

Product TypeCloud Load BalanceClassic Cloud Load Balancer
Public networkPrivate networkPublic networkPrivate network
Layer-7 repost (HTTP/HTTPS)×
Layer-4 repost (TCP / UDP)
Layer-4 encrypts repost (TCP SSL)×××
Support for HTTP/2 and websocket (secure)×
Cloud Load Balancer's strategyIP hash (Layer-7)
Weighted polling
Weighted Minimum Connections
IP hash (Layer-7)
Weighted polling
Weighted Minimum Connections
IP hash (Layer-7)
Weighted polling
Weighted Minimum Connections
WRR
Session hold
Health check
Customize repost rules (domain name / URL)××
Support SNI multi-certificate feature××
Repost to different back-end ports××
Layer-7 personalized configuration××
Layer-7 redirect function (rewrite)×××
Support cross-region binding function×××
Support Layer-7 log storage to COS××