ltm rule command TCP snd cwnd

iRule(1)		      BIG-IP TMSH Manual		      iRule(1)



TCP::snd_cwnd
       Returns the TCP congestion window (cwnd).

SYNOPSIS
       TCP::snd_cwnd

DESCRIPTION
       Returns the TCP congestion window (cwnd), the maximum unacknowledged
       data the connection can send due to the congestion control algorithm.

       The actual amount of outstanding data may be lower, due to lack of
       application data to send, the remote host's advertised receive window,
       or the size of the BIG-IP send buffer.

RETURN VALUE
       The cwnd in bytes.

VALID DURING
       ANY_EVENT

EXAMPLES
	when CLIENT_ACCEPTED {
	    # Get BIGIP's initial congestion window.
	    log local0. "BIGIP's cwnd: [TCP::snd_cwnd]"
	}
	when CLIENT_CLOSED {
	    # Get BIGIP's last congestion window.
	    log local0. "BIGIP's cwnd: [TCP::snd_cwnd]"
	}

HINTS
SEE ALSO
CHANGE LOG
       @BIGIP-12.0.0 --First introduced the command.



BIG-IP				  2017-01-31			      iRule(1)