Cisco H.323 VC-289 - Manual (Page 24)

Configuring H.323 Gatekeepers and Proxies
H.323 Gatekeeper Configuration Task List
VC-312
Cisco IOS Voice, Video, and Fax Configuration Guide
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-prefix command. 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-config command. 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
• 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.
Command Purpose