Upstream ConfigurationUpstream Configuration HTTP Protocol Options extensions.upstreams.http.v3.HttpProtocolOptionsextensions.upstreams.http.v3.HttpProtocolOptions.ExplicitHttpConfigextensions.upstreams.http.v3.HttpProtocolOptions.UseDownstreamHttpConfigextensions.upstreams.http.v3.HttpProtocolOptions.AutoHttpConfig Generic Connection Pool extensions.upstreams.http.generic.v3.GenericConnectionPoolProto Http Connection Pool extensions.upstreams.http.http.v3.HttpConnectionPoolProto Tcp Connection Pool extensions.upstreams.http.tcp.v3.TcpConnectionPoolProto Generic Connection Pool extensions.upstreams.tcp.generic.v3.GenericConnectionPoolProto