Protocols and Ports
Frontend Protocols and Ports
Frontend protocols and ports are used by load balancers to receive requests from clients. Load balancers use TCP or UDP at Layer 4, and HTTP or HTTPS at Layer 7. Select a protocol and a port that best suit your requirements.
The selected frontend protocols and entered ports cannot be changed. If you want to change them, create another listener.
Protocol |
Port |
---|---|
TCP |
There are some restrictions when you select the protocols and port numbers.
The port number ranges from 1 to 65535. The following are some commonly-used protocols and port numbers: TCP/80 HTTPS/443 |
UDP |
|
HTTP |
|
HTTPS |
Backend Protocols and Ports
Backend protocols and ports are used by backend servers to receive requests from load balancers. If Windows servers have Internet Information Services (IIS) installed, the default backend protocol and port are HTTP and 80.
Protocol |
Port |
---|---|
TCP |
Backend servers can use the same ports. The port number ranges from 1 to 65535. The following are some commonly-used protocols and port numbers: TCP/80 HTTP/443 |
UDP |
|
HTTP |
|
HTTPS |
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