Modify AI Gateway parameters

Procedure

1. Log on to the AI Gateway console.

2. In the navigation pane on the left, choose Instance. In the top menu bar, select a region.

3. On the Instance page, click the target instance ID.

4. In the left navigation pane, choose Parameters. In the Gateway Engine Parameters area, find the target parameter, click Edit in the Actions column, set the value, and then click Confirm.

   Parameter	Type	Value	Default	Description
   DownstreamConnectionBufferLimits	int64	[0, 2147483647]	32768	Buffer size in bytes per gateway connection. Affects throughput and memory usage.
   PathWithEscapedSlashes	string	KEEP_UNCHANGED REJECT_REQUEST UNESCAPE_AND_REDIRECT UNESCAPE_AND_FORWARD	KEEP_UNCHANGED	Action for requests with escaped slashes (%2F, %2f, %5C, %5c) in the URI path.
   DownstreamIdleTime	int32	[0, 600]	180	Idle timeout in seconds for client-to-gateway connections. Closes the connection if no requests arrive within this period. Requires a restart to take effect.
   EnableHardwareAccelerate	bool	[true, false]	true	Offloads TLS validation and termination to hardware, improving HTTPS performance.
   InitialStreamWindowSize	int64	[65535, 2147483647]	65535	Initial HTTP/2 stream-level flow-control window size.
   UpstreamIdleTimeout	int32	[0, 600]	30	Idle timeout in seconds for gateway-to-upstream connections.
   ZipAlgorithm	array	[gzip, brotli]	gzip	Compression algorithm (brotli or gzip). Selecting an algorithm also enables EnableGzip if it is disabled.
   EnableCustomAuthConfigPush	bool	[true, false]	false	Prevents connection drops when custom authentication rules change. Useful for WebSocket and other real-time services.
   EnableProxyProtocol	bool	[true, false]	true	Enables the PROXY protocol. Required to obtain the client IP when inbound traffic passes through an NLB. Does not affect non-PROXY-protocol requests.
   PreserveHeaderFormat	bool	[true, false]	false	Preserves the original case of HTTP/1.1 header names. By default, headers are lowercased for HTTP/2 compatibility.
   KeepAliveHeaderTimeout	int32	[0, 600]	0	Adds a Keep-Alive response header (for example, keep-alive: timeout=10). Set to 0 to omit the header.
   EnableHttp3	bool	[true, false]	false	Enables HTTP/3.
   AlwaysSetRequestIdInResponse	bool	[true, false]	true	Always includes the requestId in responses.
   EnableGzip	bool	[true, false]	false	Enables gzip compression for requests and responses. Reduces traffic but increases CPU usage.
   InitialConnectionWindowSize	int64	[65535, 2147483647]	1048576	Initial HTTP/2 connection-level flow-control window size.
   DownstreamHttp2MaxConcurrentStream	int64	[0, 2147483647]	100	Maximum concurrent streams per HTTP/2 connection.
   EnableSlashMerge	bool	[true, false]	false	Merges consecutive slashes in request paths. For example, www.a.com//b becomes www.a.com/b.
   EnableGenerateRequestId	bool	[true, false]	true	Generates a requestId request header for tracing.
   WebsocketTermGracePeriod	int32	[20, 900]	20	Grace period in seconds for WebSocket connections during instance upgrades or restarts.
   XffTrustedNum	int32	[0, 10]	0	Number of trusted proxies in front of the gateway. Determines whether client-supplied x-forwarded-for and x-request-id headers are used.