Why Can't I Select the Target Backend Server Group When Adding or Modifying a Listener?
The backend server group's protocol (backend protocol) you want to select is not supported by the listener protocol (frontend protocol). There are some constraints on the backend protocol when you associate a backend server group with a listener.
Frontend Protocol |
Backend Protocol |
---|---|
TCP |
TCP |
UDP |
UDP/QUIC |
HTTP |
HTTP |
HTTPS |
HTTP/HTTPS |
Frontend Protocol |
Backend Protocol |
---|---|
TCP |
TCP |
UDP |
UDP |
HTTP |
HTTP |
HTTPS |
HTTP |
Listeners FAQs
- What Are the Relationships Between Load Balancing Algorithms and Sticky Session Types?
- Can I Bind Multiple Certificates to a Listener?
- Will ELB Stop Distributing Traffic Immediately After a Listener Is Deleted?
- Does ELB Have Restrictions on the File Upload Speed and Size?
- Can Multiple Load Balancers Route Requests to One Backend Server?
- How Is WebSocket Used?
- What Are the Three Timeouts of a Listener and What Are the Default Durations?
- Why Can't I Select the Target Backend Server Group When Adding or Modifying a Listener?
- Why Cannot I Add a Listener to a Dedicated Load Balancer?
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