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Cisco Unified Communications Manager Administration Guide
OL-18611-01
Chapter 89 Gatekeeper Configuration
Gatekeeper Configuration Settings
services for communications between Cisco Unified Communications Manager clusters and H.323
networks. You can configure multiple gatekeeper devices per Cisco Unified Communications Manager
cluster. You can configure alternate gatekeepers for redundancy. Refer to Cisco Multimedia Conference
Manager (MCM) documentation and the Cisco Unified Communications Solution Reference Network
Design (SRND) for alternate gatekeeper configuration details.
Gatekeeper configuration comprises two components:
• Cisco Unified Communications Manager configuration. Each Cisco Unified Communications
Manager cluster can register with one or more gatekeepers. This chapter describes how to configure
the gatekeeper in Cisco Unified Communications Manager. You also need to configure trunk devices
on the Trunk Configuration window. See the
“Trunk Configuration” section on page 92-1.
• Gatekeeper configuration on the router. This type of configuration applies to a Cisco IOS
Multimedia Conference Manager (MCM) that acts as the gatekeeper. Recommended platforms for
the gatekeeper include Cisco 2600, 3600, or 7200 routers with Cisco IOS Release 12.1(3)T or
higher. Refer to the MCM documentation for information on configuring the gatekeeper. Alternate
gatekeeper configuration occurs in the MCM only, so no configuration is necessary in Cisco Unified
Communications Manager.
Note You can configure multiple gatekeeper devices per Cisco Unified Communications Manager cluster.
Table 89-1 describes the gatekeeper configuration settings. For related procedures, see the “Related
Topics” section on page 89-6.
Table 89-1 Gatekeeper Configuration Settings
Field Description
Gatekeeper Information
Host Name/IP Address Enter the IP address or host name of the gatekeeper in this required
field.
You can register multiple gatekeepers per Cisco Unified
Communications Manager cluster.
Description Enter a descriptive name for the gatekeeper.
Registration Request Time to
Live
Do not change this value unless a Cisco TAC engineer instructs you
to do so. Enter the time in seconds. The default value specifies 60
seconds.
The Registration Request Time to Live field indicates the time that
the gatekeeper considers a registration request (RRQ) valid. The
system must send a keepalive RRQ to the gatekeeper before the
RRQ Time to Live expires.
Cisco Unified Communications Manager sends an RRQ to the
gatekeeper to register and subsequently to maintain a connection
with the gatekeeper. The gatekeeper may confirm (RCF) or deny
(RRJ) the request.