1.11.1 (August 13, 2019)

• http: added inbound_window_update_frames_flood counter stat to the HTTP/2 codec stats, for tracking number of connections terminated for exceeding the limit on inbound WINDOW_UPDATE frames. The limit is configured by setting the . Runtime feature envoy.reloadable_features.http2_protocol_options.max_inbound_window_update_frames_per_data_frame_sent overrides max_inbound_window_update_frames_per_data_frame_sent setting. Large override value effectively disables flood mitigation of inbound WINDOW_UPDATE frames.

• http: added counter stat to the HTTP/2 codec stats, for tracking number of connections terminated for exceeding the outbound queue limit for PING, SETTINGS and RST_STREAM frames. The limit is configured by setting the max_outbound_control_frames config setting. Runtime feature envoy.reloadable_features.http2_protocol_options.max_outbound_control_frames overrides . Large override value effectively disables flood mitigation of outbound frames of types PING, SETTINGS and RST_STREAM.