Cisco Systems VC-289 manual Verifying Zone Prefix Redundancy, Command, Purpose, VC-310

Configuring H.323 Gatekeepers and Proxies

H.323 Gatekeeper Configuration Task List

	Command	Purpose
Step 3 Router(config-gk)# zone remote		Configures the remote gatekeeper.
	other-gatekeeper-name other-domain-name	The arguments are as follows:
	other-gatekeeper-ip-address
	[port-number]	• other-gatekeeper-name—Name of the remote
		gatekeeper.
		• other-domain-name—Domain name of the remote
		gatekeeper.
		• other-gatekeeper-ip-address—IP address of the
		remote gatekeeper.
		• port-number—(Optional) RAS signaling port
		number for the remote zone. Value ranges from 1 to
		65,535. If this option is not set, the default is the
		well-known RAS port number 1719.

Configuring Redundant Gatekeepers for a Zone Prefix

To configure redundant gatekeepers for a zone prefix, use the following commands beginning in global configuration mode:

	Command	Purpose
Step 1
	Router(config)# gatekeeper	Enters gatekeeper configuration mode.
Step 2
	Router(config-gk)# zone prefix gatekeeper-name	Adds a prefix to the gatekeeper zone list.
	e164-prefix[blast seq] [gw-priority priority	For an explanation of the keywords and arguments,
	gw-alias [gw-alias, ...]]
		see Step 3 of the configuration task table in the
		“Starting a Gatekeeper” section on page 304.

You can configure multiple remote gatekeepers for the same prefix, but only one of the gatekeepers defined for any given zone prefix can be local. It is recommended that you limit the number of remote gatekeepers that service the same zone prefix to two.

By default, LRQs are sent sequentially to the remote gatekeepers. If you would like the LRQs to be sent simultaneously (blast), you need only specify the blast keyword on one zone prefix command per E.164 prefix.

Verifying Zone Prefix Redundancy

To verify the order in which LRQs will be sent to the gatekeepers defined for a zone prefix, enter the show gatekeeper zone prefix command. The following output lists all the gatekeepers, in order, and the zone prefixes serviced by each.

router# show gatekeeper zone prefix
ZONE PREFIX TABLE
=================
GK-NAME	E164-PREFIX
-------	-----------
c3620-1-gk	917300....
c2514-2-gk	917300....
c2600-1-gk	919
c2514-1-gk	919

Cisco IOS Voice, Video, and Fax Configuration Guide

VC-310