tencent cloud

All product documents
Cloud Load Balancer
DocumentationCloud Load BalancerProduct IntroductionProduct ComparisonInstance Types Comparison
Instance Types Comparison
Download PDF
Last updated: 2024-10-11 14:57:11
Instance Types Comparison
Last updated: 2024-10-11 14:57:11
Download PDF
CLB offers two types of instances: CLB (formerly "application CLB") and Classic CLB.
CLB supports TCP/UDP/HTTP/HTTPS protocols to provide flexible forwarding capabilities based on domain names and URL paths.
Classic CLB does not support HTTP/HTTPS protocols on the private network but is easy to configure.
CLB has all features of Classic CLB. Given their product features and performance, we recommend that you use CLB. For a detailed comparison, please see below:
Product Type
CLB
Classic CLB
Public network
Private network
Public network
Private network
Layer-7 forwarding (HTTP/HTTPS)
✓
✓
✓
×
Layer-4 forwarding (TCP/UDP)
✓
✓
✓
✓
Encrypted Layer-4 forwarding (TCP SSL)
✓
✓
×
×
HTTP/2 and WebSocket (Secure) support
✓
✓
✓
×
Load balancing policy
IP hash (Layer-7)Weighted round-robinWeighted least-connection scheduling
IP hash (Layer-7)Weighted round-robinWeighted least-connection scheduling
IP hash (Layer-7)Weighted round-robinWeighted least-connection scheduling
Weighted round-robin
Session persistence
✓
✓
✓
✓
Health check
✓
✓
✓
✓
Custom forwarding rule (domain name/URL)
✓
✓
×
×
SNI multi-certificate support
✓
✓
×
×
Forwarding to different real ports
✓
✓
×
×
Custom Layer-7 configuration
✓
✓
×
×
Layer-7 redirect (rewrite)
✓
✓
×
×
Cross-region binding support
✓
✓
×
×
Storing Layer-7 access logs in CLS
✓
✓
✓
×
Note:
CLB instance: a CLB instance supports enabling or disabling the HTTP/2 protocol. For more information, see Configuring an HTTPS Listener.
Classic CLB instance: HTTPS listeners created for Classic CLB before April 2018 do not support the HTTP/2 protocol. HTTPS listeners created after April 2018 support but cannot disable the HTTP/2 protocol.


Was this page helpful?
You can also Contact Sales or Submit a Ticket for help.
Yes
No

Feedback

Contact Us

Contact our sales team or business advisors to help your business.

Contact Us
Technical Support

Open a ticket if you're looking for further assistance. Our Ticket is 7x24 avaliable.

Submit a Ticket
7x24 Phone Support
Hong Kong, China
+852 800 906 020 (Toll Free)
United States
+1 844 606 0804 (Toll Free)
United Kingdom
+44 808 196 4551 (Toll Free)
Canada
+1 888 605 7930 (Toll Free)
Australia
+61 1300 986 386 (Toll Free)
EdgeOne hotline
+852 300 80699
More local hotlines coming soon