Cisco Unified Communications Manager Administration Guide, Release 6.0(1) - Gatekeeper Configuration [Cisco Unified Communications Manager (CallManager)]

Table Of Contents

Gatekeeper Configuration

Finding a Gatekeeper

Configuring a Gatekeeper

Gatekeeper Configuration Settings

Deleting a Gatekeeper

Resetting a Gatekeeper

Related Topics

Gatekeeper Configuration

A gatekeeper device, also known as a Cisco Multimedia Conference Manager (MCM), supports the H.225 Registration, Admission, and Status Protocol (RAS) message set that is used for call admission control, bandwidth allocation, and dial pattern resolution (call routing). The gatekeeper provides these 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 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 83-1.

•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.

The following topics cover gatekeeper configuration in Cisco Unified Communications Manager Administration:

•Finding a Gatekeeper

•Configuring a Gatekeeper

•Gatekeeper Configuration Settings

•Deleting a Gatekeeper

•Resetting a Gatekeeper

Finding a Gatekeeper

Because you might have several gatekeepers in your network, Cisco Unified Communications Manager Administration lets you locate specific gatekeepers on the basis of specific criteria. Use the following procedure to locate gatekeepers.

Note During your work in a browser session, Cisco Unified Communications Manager Administration retains your gatekeeper search preferences. If you navigate to other menu items and return to this menu item, Cisco Unified Communications Manager Administration retains your gatekeeper search preferences until you modify your search or close the browser.

Procedure

Step 1 Choose Device > Gatekeeper.

The Find and List Gatekeeper window displays. Records from an active (prior) query may also display in the window.

Step 2 To find all records in the database, ensure the dialog box is empty; go to Step 3.

To filter or search records

•From the first drop-down list box, select a search parameter.

•From the second drop-down list box, select a search pattern.

•Specify the appropriate search text, if applicable.

Note To add additional search criteria, click the + button. When you add criteria, the system searches for a record that matches all criteria that you specify. To remove criteria, click the - button to remove the last added criterion or click the Clear Filter button to remove all added search criteria.

Step 3 Click Find.

All matching records display. You can change the number of items that display on each page by choosing a different value from the Rows per Page drop-down list box.

Note You can delete multiple records from the database by checking the check boxes next to the appropriate record and clicking Delete Selected. You can delete all configurable records for this selection by clicking Select All and then clicking Delete Selected.

Step 4 From the list of records that display, click the link for the record that you want to view.

Note To reverse the sort order, click the up or down arrow, if available, in the list header.

The window displays the item that you choose.

Additional Information

See the "Related Topics" section.

Configuring a Gatekeeper

Perform the following procedure to add or update a gatekeeper.

Note You can configure multiple gatekeeper devices per Cisco Unified Communications Manager cluster.

Procedure

Step 1 Choose Device > Gatekeeper.

The Find and List Gatekeepers window displays.

Step 2 Perform one of the followings tasks:

•To add a new gatekeeper, click the Add New button and continue with Step 3.

•To update an existing gatekeeper, locate the appropriate gatekeeper as described in "Finding a Gatekeeper" section and continue with Step 3.

Step 3 Enter the appropriate settings as described in Table 80-1.

Step 4 Click Save.

Additional Information

See the "Related Topics" section.

Gatekeeper Configuration Settings

Table 80-1 describes the gatekeeper configuration settings. For related procedures, see the "Related Topics" section.

Table 80-1 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.

Registration Retry Timeout

Do not change this value unless a Cisco TAC engineer instructs you to do so. Enter the time in seconds. The default value specifies 300 seconds.

The Registration Retry Timeout field indicates the time that Cisco Unified Communications Manager waits before retrying gatekeeper registration after a failed registration attempt.

Enable Device

This check box allows you to register this gatekeeper with Cisco Unified Communications Manager. By default, this check box remains checked. To unregister the gatekeeper from Cisco Unified Communications Manager gracefully, uncheck this check box. The gatekeeper unregisters within approximately 1 minute of updating this field.

Deleting a Gatekeeper

Perform the following steps to delete a gatekeeper.

Before You Begin

You cannot delete a gatekeeper that is assigned to one or more trunks. To find out which trunks are using the gatekeeper, choose Dependency Records from the Related Links drop-down list box that is on the Gatekeeper Configuration window. If the dependency records are not enabled for the system, the dependency records summary window displays a message. For more information about dependency records, see the "Accessing Dependency Records" section on page A-2. If you try to delete a gatekeeper that is in use, Cisco Unified Communications Manager displays an error message. Before deleting a gatekeeper that is currently in use, you must perform either or both of the following tasks:

•Assign a different gatekeeper to any trunks that are using the gatekeeper that you want to delete. See the "Configuring a Trunk" section on page 83-3.

•Delete the trunks that are using the gatekeeper that you want to delete. See the "Deleting a Trunk" section on page 83-29.

Procedure

Step 1 Locate the gatekeeper by using the procedure in the "Finding a Gatekeeper" section.

Step 2 From the list of matching records, choose the gatekeeper that you want to delete.

Step 3 Click Delete Selected.

A confirmation dialog box displays.

Step 4 To delete the gatekeeper, click OK.

Additional Information

See the "Related Topics" section.

Resetting a Gatekeeper

Resetting a gatekeeper does not mean that the physical device is reset; instead, resetting forces the Cisco Unified Communications Manager to reset the logical connection to the gatekeeper and to reregister with the gatekeeper. During this time of reregistering and until successful registration, new calls that are made by using this trunk, which uses this gatekeeper, fail. Perform the following procedure to reset a gatekeeper.

Note Resetting a gatekeeper does not cause all active calls that this gatekeeper controls to be dropped; however, new call attempts fail.

Procedure

Step 1 Locate the gatekeeper by using the procedure in the "Finding a Gatekeeper" section.

Step 2 From the list of matching records, choose the gatekeeper that you want to reset.

Step 3 If you changed any settings for the Gatekeeper Device, click Reset.

The Reset Device dialog displays.

Step 4 Click one of the following choices:

•Restart—Restarts the chosen devices without shutting them down (reregisters the phones and trunks with Cisco Unified Communications Manager).

•Reset—Shuts down, then restarts, the internal gatekeeper device. The Cisco Unified Communications Manager cluster unregisters (URQ) and then reregisters (RRQ) with the gatekeeper.

•Close—Closes the Reset Device dialog without performing any action.

Additional Information

See the "Related Topics" section.

Related Topics

•Gatekeeper Configuration

•Finding a Gatekeeper

•Configuring a Gatekeeper

•Gatekeeper Configuration Settings

•Deleting a Gatekeeper

•Resetting a Gatekeeper

•Trunk Configuration, page 83-1

•Gatekeepers and Trunks, Cisco Unified Communications Manager System Guide

Additional Cisco Documentation

•Cisco Unified Communications Solution Reference Network Design (SRND)

•Cisco IOS Multimedia Conference Manager (Command Reference) documentation