HTTP frame

RU: фрейм

The basic unit of communication in HTTP/2 (RFC 9113): a 9-byte header (3 bytes length, 1 byte type, 1 byte flags, 4-byte stream ID) followed by a payload. Every request, response, header, push promise, or connection setting is serialized as one or more typed frames on a shared TCP connection, enabling multiplexing of concurrent streams without head-of-line blocking at the HTTP layer.