HP Enterprise File Services WAN Accelerator Enabling Connection Pooling, Control Description

2. Use the controls to set HSTCP options, as described in the following table.

Control	Description
High-Speed TCP	Enable High Speed TCP. Select this option to enable HSTCP:
	• LAN Send Buffer Size. Specify the send buffer size to set the buffer size used to send
		data out of the LAN. The default value is 81920.
	•	LAN Receive Buffer Size. Specify the receive buffer size to set the buffer size used to
		receive data from the LAN. The default value is 32768.
	•	WAN Default Send Buffer Size. Specify the send buffer size to set the buffer size
		used to send data out the WAN. The default value is 262140.
	•	WAN Default Receive Buffer Size. Specify the receive buffer size to set the buffer
		size used to receive data from the WAN. The default value is 262140.

Enabling

Connection

Pooling

3.Click Apply to apply your settings to the running configuration. (Apply your settings to test a new configuration before saving them permanently.)

4.Click Save to save your settings permanently or click Reset to return the settings to their previous values.

You configure connection pooling in the Optimization Service - Connection Pooling page.

Connection pooling enhances network performance by reusing active connections instead of creating a new connection for every request. A connection pool manager maintains a pool of open connections. When a new connection request comes in, the pool manager checks if the pool contains unused connections and returns one if available. If all connections currently in the pool are busy and the maximum pool size has not been reached, the new connection is created and added to the pool. When the pool reaches its maximum size all new connection requests are queued up until a connection in the pool becomes available or the connection attempt times out.

Connection pooling is useful for protocols which open a large number of short lived connections, such as HTTP.

Enabling this feature is optional.

44 CONFIGURING THE HP EFS WAN ACCELERATOR