.. _envoy_api_file_api/protocol.proto:

Protocol options
================



.. _envoy_api_msg_Http1ProtocolOptions:

Http1ProtocolOptions
--------------------

`[Http1ProtocolOptions proto] <https://github.com/envoyproxy/data-plane-api/blob/master/api/protocol.proto#L16>`_


.. code-block:: json

  {
    "allow_absolute_url": "{...}"
  }

.. _envoy_api_field_Http1ProtocolOptions.allow_absolute_url:

allow_absolute_url
  (`BoolValue <https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#boolvalue>`_) Handle HTTP requests with absolute URLs in the requests. These requests
  are generally sent by clients to forward/explicit proxies. This allows clients to configure
  envoy as their HTTP proxy. In Unix, for example, this is typically done by setting the
  *http_proxy* environment variable.
  
  


.. _envoy_api_msg_Http2ProtocolOptions:

Http2ProtocolOptions
--------------------

`[Http2ProtocolOptions proto] <https://github.com/envoyproxy/data-plane-api/blob/master/api/protocol.proto#L24>`_


.. code-block:: json

  {
    "hpack_table_size": "{...}",
    "max_concurrent_streams": "{...}",
    "initial_stream_window_size": "{...}",
    "initial_connection_window_size": "{...}"
  }

.. _envoy_api_field_Http2ProtocolOptions.hpack_table_size:

hpack_table_size
  (`UInt32Value <https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#uint32value>`_) `Maximum table size <http://httpwg.org/specs/rfc7541.html#rfc.section.4.2>`_
  (in octets) that the encoder is permitted to use for the dynamic HPACK table. Valid values
  range from 0 to 4294967295 (2^32 - 1) and defaults to 4096. 0 effectively disables header
  compression.
  
  
.. _envoy_api_field_Http2ProtocolOptions.max_concurrent_streams:

max_concurrent_streams
  (`UInt32Value <https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#uint32value>`_) `Maximum concurrent streams <http://httpwg.org/specs/rfc7540.html#rfc.section.5.1.2>`_
  allowed for peer on one HTTP/2 connection. Valid values range from 1 to 2147483647 (2^31 - 1)
  and defaults to 2147483647.
  
  
.. _envoy_api_field_Http2ProtocolOptions.initial_stream_window_size:

initial_stream_window_size
  (`UInt32Value <https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#uint32value>`_) This field also acts as a soft limit on the number of bytes Envoy will buffer per-stream in the
  HTTP/2 codec buffers. Once the buffer reaches this pointer, watermark callbacks will fire to
  stop the flow of data to the codec buffers.
  
  
.. _envoy_api_field_Http2ProtocolOptions.initial_connection_window_size:

initial_connection_window_size
  (`UInt32Value <https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#uint32value>`_) Similar to *initial_stream_window_size*, but for connection-level flow-control
  window. Currently, this has the same minimum/maximum/default as *initial_stream_window_size*.