protocol

The protocol this BackendService uses to communicate with backends. The default is HTTP. NOTE: HTTP2 is only valid for beta HTTP/2 load balancer types and may result in errors if used with the GA API. NOTE: With protocol “UNSPECIFIED”, the backend service can be used by Layer 4 Internal Load Balancing or Network Load Balancing with TCP/UDP/L3_DEFAULT Forwarding Rule protocol. Possible values are: HTTP, HTTPS, HTTP2, TCP, SSL, GRPC, UNSPECIFIED.