Cisco Systems VC-289 manual Verifying Technology Prefix Redundancy, Command, Purpose, VC-312

Configuring H.323 Gatekeepers and Proxies

H.323 Gatekeeper Configuration Task List

Command

Purpose

•seq blast—(Optional) If multiple hopoffs are listed, indicates that the location requests (LRQs) should be sent sequentially or simultaneously (blast) to the gatekeepers based on the order in which they were listed. The default is to send them sequentially.

•default-technology—(Optional) Specifies that gateways that register with this prefix option are used as the default for routing any addresses that are otherwise unresolved.

•gw ipaddr ipaddr [port]—(Optional) Indicates that the gateway is incapable of registering technology prefixes. When it registers, it adds the gateway to the group for this type-prefix, just as if it had sent the technology prefix in its registration. This parameter can be repeated to associate more than one gateway with a technology prefix.

You can enter the hopoff keyword and gkid argument multiple times in the same command to define a group of gatekeepers that will service a given technology prefix. After you have listed all of the gatekeepers that will service that technology zone, you can specify whether the LRQs should be sent in blast or sequential fashion.

Note Only one of the gatekeepers in the hopoff list can be local. We recommend that you limit the number of remote gatekeepers that service the same technology prefix to two.

Verifying Technology Prefix Redundancy

To verify that multiple gatekeepers are defined for a technology prefix, enter the show gatekeeper gw-type-prefixcommand. The following output displays the gateway technology prefix table.

router# show gatekeeper gw-type-prefix

(GATEWAYS-TYPE PREFIX		TABLE
================================
Prefix:3#*	(Hopoff	zone c2600-1-gk c2514-1-gk)

To verify whether the LRQs will be sent sequentially or simultaneously to the gatekeepers, enter the show running-configcommand. If the LRQs will be sent simultaneously, blast will appear at the end of the gw-type-prefix line (as shown below).

Router# show running-config

Building configuration...

Current configuration:

!

gatekeeper

zone remote c2600-1-gk cisco.com 172.18.194.70 1719 zone remote c2514-1-gk cisco.com 172.18.194.71 1719

gw-type-prefix 3#* hopoff c2600-1-gk hopoff c2514-1-gk blast

Cisco IOS Voice, Video, and Fax Configuration Guide

VC-312