gtm monitor tcp-half-open

gtm monitor tcp-half-open(1)				BIG-IP TMSH Manual			      gtm monitor tcp-half-open(1)

NAME
       tcp-half-open - Configures a Transmission Control Protocol (TCP) Half Open monitor.

MODULE
       gtm monitor

SYNTAX
       Configure the tcp-half-open component within the gtm monitor module using the syntax in the following sections.

   CREATE/MODIFY
	create tcp-half-open [name]
	modify tcp-half-open [name]
	  options:
	    defaults-from [name]
	    description [string]
	    destination [ [ ipv4 address[:port] ] | [ ipv6 address[.port] ] ]
	    ignore-down-response [enabled | disabled]
	    interval [integer]
	    probe-attempts [integer])
	    probe-interval [integer])
	    probe-timeout [integer]
	    timeout [integer]
	    transparent [disabled | enabled]

	edit tcp-half-open [ [ [name] | [glob] | [regex] ] ... ]
	  options:
	    all-properties
	    non-default-properties

   DISPLAY
	list tcp-half-open
	list tcp-half-open [ [ [name] | [glob] | [regex] ] ... ]
	show running-config tcp-half-open
	show running-config tcp-half-open [ [ [name] | [glob] | [regex] ] ... ]
	  options:
	    all-properties
	    non-default-properties
	    one-line
	    partition

   DELETE
	delete tcp-half-open [name]

       Note: You cannot delete default monitors.

DESCRIPTION
       You can use the tcp-half-open component to configure a custom monitor, or you can use the default TCP Half Open monitor
       that the Global Traffic Manager provides.

       For more information about configuring monitors, refer to the Configuration Guide for BIG-IP(r) Global Traffic Management.

EXAMPLES
       create tcp-half-open my_tcp-half-open defaults-from tcp_half_open

       Creates a monitor named my_tcp-half-open that inherits properties from the default TCP Half Open monitor.

       list tcp-half-open

       Displays the properties of all of the TCP Half Open monitors.

OPTIONS
       defaults-from
	    Specifies the name of the monitor from which you want your custom monitor to inherit settings. The default value is
	    tcp_half_open.

       description
	    User defined description.

       destination
	    Specifies the IP address and service port of the resource that is the destination of this monitor. The default value
	    is *:*.

	    Possible values are:

	    *:*  Specifies to perform a health check on the IP address and port supplied by a pool member.

	    *:port
		 Specifies to perform a health check on the server with the IP address supplied by the pool member and the port
		 you specify.

	    IP address:port
		 Specifies to mark a pool member up or down based on the response of the server at the IP address and port you
		 specify.

	    IP address:port (with the transparent option enabled)
		 Specifies to perform a health check on the server at the IP address and port you specify, route the check through
		 the IP address and port supplied by the pool member, and mark the pool member (the gateway) up or down
		 accordingly.

       glob Displays the items that match the glob expression. See help glob for a description of glob expression syntax.

       ignore-down-response
	    Specifies whether the monitor ignores a down response from the system it is monitoring. The default value is disabled.

       interval
	    Specifies the frequency at which the system issues the monitor check. The default value is 30 seconds.

       name Specifies a unique name for the component. This option is required for the commands create, delete, and modify.

       partition
	    Displays the administrative partition within which the component resides.

       probe-attempts
	    Specifies the number of times the BIG-IP system attempts to probe the host server, after which the BIG-IP system
	    considers the host server down or unavailable. The default value is 3.

       probe-interval
	    Specifies the frequency at which the BIG-IP system probes the host server. The default value is 1.

       probe-timeout
	    Specifies the number of seconds after which the BIG-IP system times out the probe request to the BIG-IP system. The
	    default value is 5 seconds.

       regex
	    Displays the items that match the regular expression. The regular expression must be preceded by an at sign (@[regular
	    expression]) to indicate that the identifier is a regular expression. See help regex for a description of regular
	    expression syntax.

       timeout
	    Specifies the number of seconds the target has in which to respond to the monitor request. The default value is 120
	    seconds.

	    If the target responds within the set time period, it is considered up. If the target does not respond within the set
	    time period, it is considered down. Also, if the target responds with a RESET packet, the system immediately flags the
	    target as down without waiting for the timeout interval to expire.

       transparent
	    Specifies whether the monitor operates in transparent mode. Monitors in transparent mode can monitor pool members
	    through firewalls. The default value is disabled.

SEE ALSO
       create, delete, edit, glob, gtm pool, gtm server, list, modify, regex, show, tmsh

COPYRIGHT
       No part of this program may be reproduced or transmitted in any form or by any means, electronic or mechanical, including
       photocopying, recording, or information storage and retrieval systems, for any purpose other than the purchaser's personal
       use, without the express written permission of F5 Networks, Inc.

       F5 Networks and BIG-IP (c) Copyright 2008-2010. All rights reserved.

BIG-IP							    2017-08-15				      gtm monitor tcp-half-open(1)