Backend
Specifies preference of traffic to the backend (from the proxy and from the client for proxyless gRPC). The possible values are: - IPV4_ONLY: Only send IPv4 traffic to the backends of the Backend Service (Instance Group, Managed Instance Group, Network Endpoint Group) regardless of traffic from the client to the proxy. Only IPv4 health-checks are used to check the health of the backends. This is the default setting. - PREFER_IPV6: Prioritize the connection to the endpoints IPv6 address over its IPv4 address (provided there is a healthy IPv6 address). - IPV6_ONLY: Only send IPv6 traffic to the backends of the Backend Service (Instance Group, Managed Instance Group, Network Endpoint Group) regardless of traffic from the client to the proxy. Only IPv6 health-checks are used to check the health of the backends. This field is applicable to either: - Advanced Global External HTTPS Load Balancing (load balancing scheme EXTERNAL_MANAGED), - Regional External HTTPS Load Balancing, - Internal TCP Proxy (load balancing scheme INTERNAL_MANAGED), - Regional Internal HTTPS Load Balancing (load balancing scheme INTERNAL_MANAGED), - Traffic Director with Envoy proxies and proxyless gRPC (load balancing scheme INTERNAL_SELF_MANAGED).
Entries
Only send IPv4 traffic to the backends of the Backend Service (Instance Group, Managed Instance Group, Network Endpoint Group) regardless of traffic from the client to the proxy. Only IPv4 health-checks are used to check the health of the backends. This is the default setting.
Unspecified IP address selection policy.
Prioritize the connection to the endpoints IPv6 address over its IPv4 address (provided there is a healthy IPv6 address).
Types
Functions
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
Returns an array containing the constants of this enum type, in the order they're declared.