Cisco Unified Communications Manager Administration Guide, Release 6.0(1)
Region Configuration
Downloads: This chapterpdf (PDF - 415.0KB) The complete bookPDF (PDF - 17.96MB) | Feedback

Region Configuration

Table Of Contents

Region Configuration

Finding a Region

Configuring a Region

Region Configuration Settings

Deleting a Region

Related Topics


Region Configuration


Use regions to specify the bandwidth that is used for audio and video calls within a region and between existing regions.

The audio codec determines the type of compression and the maximum amount of bandwidth that is used per audio call.

The video call bandwidth comprises the sum of the audio bandwidth and video bandwidth but does not include overhead.


Note The default audio codec for all calls through Cisco Unified Communications Manager specifies G.711. If you do not plan to use any other audio codec, you do not need to use regions. See the "Related Topics" section for more information.



Note Cisco Unified Communications Manager allows addition of a maximum of 500 regions.


Use the following procedures to add, update, or delete regions:

Finding a Region

Configuring a Region

Related Topics

Deleting a Region

Refer to the "Regions" section in the Cisco Unified Communications Manager System Guide for more information about configuring regions and selecting audio codecs.

Finding a Region

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


Note During your work in a browser session, the cookies on the client machine store your find/list search preferences. If you navigate to other menu items and return to this menu item, or if you close the browser and then reopen a new browser window, the system retains your Cisco Unified Communications Manager search preferences until you modify your search.


Procedure


Step 1 Choose System > Region.

The Find and List Regions 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 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 Region

Use the following procedure to add or update a region.

Before You Begin

For every region, an association exists with that region in other regions; therefore, the addition of regions occurs in a matrixlike fashion. For example, if you add regions A, B, and C, a matrix with region A, region B, and region C as both columns and rows results, as shown in the following matrix:

 

Region A

Region B

Region C

Region A

     

Region B

     

Region C

     

If you assign 20 regions, the database adds 400 entries (20 x 20). Some performance limitations exist when large numbers of regions are assigned.


Note Cisco Unified Communications Manager allows addition of a maximum of 500 regions.


Configuring Default Values

Region entries contain the following values:

Audio Codec—You define audio codec values that are to be used within the same region, and you also define audio codec values that are to be used between regions.

Video Call Bandwidth—You define video call bandwidth values that are to be used within the same region, and you also define video call bandwidth values that are to be used between regions.

Link Loss Type—You define the link loss types that are to be used within the same region, and you also define link loss types that are to be used between regions.


Tip If you set both the audio codec values and the video call bandwidth values to use the default, the system optimizes its performance by making more efficient use of resources.



Note Regions have default values for use within a region (the recommended default value specifies G.711), and regions have default values for use between regions (the recommended default value specifies G.729).


You configure the default values for regions in the Cisco Unified Communications Manager Administration Service Parameters Configuration window. Use the following procedure:

1. Choose System > Service Parameters.

2. From the drop-down Server list box, choose the Cisco Unified Communications Manager server that you want to configure.

3. From the drop-down Service list box, choose Cisco CallManager (Active) as the service.

4. The Cisco Unified Communications Manager Administration Service Parameter Configuration window displays.

5. Scroll down to Clusterwide Parameters (System - Location and Region) and configure the parameters in this section.

6. Click the Save icon that displays in the tool bar in the upper, left corner of the window (or click the Save button that displays at the bottom of the window).

Use the following procedure to add or update a region.

Procedure


Step 1 Choose System > Region.

The Region Configuration window displays.

Step 2 Perform one of the following tasks:

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

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


Note Cisco recommends that you reset devices after changing a region name.


Step 3 In the Name field, enter the name that you want to assign to the region.

Step 4 To save the new region in the database, click the Save icon that displays in the tool bar in the upper, left corner of the window (or click the Save button that displays at the bottom of the window).

Step 5 To configure the default codecs to use within this region, click the name of this region to highlight it in the Regions window pane.

a. From the Audio Codec drop-down list box, choose a default audio codec value to use within this region.

The audio codec determines the type of compression and the maximum amount of bandwidth that is allocated for these calls. See Table 8-2 for a summary of the available codec types and bandwidth usage.

b. In the Video Call Bandwidth column, click the appropriate radio button to configure the default value to specify the video bandwidth to use for video calls within this region.

If you specify None, the system does not allow video calls.

c. From the Link Loss Type drop-down list box, choose a default link loss type to use within this region.


Note For enhanced scalability, Cisco recommends that you properly set the default values in the Clusterwide Parameters (System - Location and Region) section of the Cisco Unified Communications Manager Administration Service Parameters Configuration window for the audio codec, video call bandwidth, and link loss type values and then choose Use System Default in the Cisco Unified Communications Manager Administration Region Configuration window.


Step 6 To configure the default codecs to use between this region and other regions, click another region name (other than this region) to highlight it in the Regions window pane.

a. From the Audio Codec drop-down list box, choose a default audio codec value to use between this region and the region that you highlighted.

The audio codec determines the type of compression and the maximum amount of bandwidth that is allocated for these calls. See Table 8-2 for a summary of the available codec types and bandwidth usage.

b. In the Video Call Bandwidth column, click the appropriate radio button to configure the default value to specify the video bandwidth to use for video calls between this region and the region that you highlighted.

If you specify None, the system does not allow video calls between this region and the specified region.

c. From the Link Loss Type drop-down list box, choose a default link loss type to use between this region and the region that you highlighted.


Note For enhanced scalability, Cisco recommends that you properly set the default values in the Clusterwide Parameters (System - Location and Region) section of the Cisco Unified Communications Manager Administration Service Parameters Configuration window for the audio codec, video call bandwidth, and link loss type values and then choose the Use System Default entries in the Cisco Unified Communications Manager Administration Region Configuration window for these fields.


Step 7 To save the new region in the database, click the Save icon that displays in the tool bar in the upper, left corner of the window (or click the Save button that displays at the bottom of the window).



Tip The Region Configuration window displays an Items per page drop-down list box that allows you to list 25, 50, 100, 150, 200, or 250 configured regions. If you choose to display 100 or more regions, Cisco Unified Communications Manager may experience performance degradation.


Next Step

After adding a new region to the database, you can use it to configure device pools. Devices acquire a region setting from the device pool to which they are assigned. See the "Configuring a Device Pool" section on page 9-2 for information on configuring device pools.

Additional Information

See the "Related Topics" section.

Region Configuration Settings

Table 8-1 summarizes the audio codec and video call bandwidth settings that can be specified for regions. For related procedures, see the "Related Topics" section.

Table 8-1 Region Configuration Settings 

Field
Description
Region Information

Name

Enter a unique name for this region. This name can comprise up to 30 characters. Valid characters include letters, numbers, dashes, dots (periods), blanks, and underscores.


Note Cisco recommends that you reset devices after changing a region name.


Region Relationships

Region

The entries in this column display all regions for which non-default relationships have been configured.

Note If the relationships between the region that you are configuring and this region specify only default values, this region does not display in this column.

Audio Codec

The entries in this column specify the audio codec relationship between the region that you are configuring and the region that displays in the corresponding row.

Video Call Bandwidth

The entries in this column specify the video call bandwidth relationship between the region that you are configuring and the region that displays in the corresponding row.

Link Loss Type

The entries in this column specify the link loss type relationship between the region that you are configuring and the region that displays in the corresponding row.

Modify Relationship to Other Regions

Regions

The entries in this window pane specify all existing regions, including the Default region, the region that you are configuring, and all other regions.

Choose a region in this pane prior to configuring the relationships between the region that you are configuring and the chosen region.

Audio Codec

For each region that is specified in the Regions window pane, choose the corresponding value from the drop-down list box in this column to set the audio codec to use for calls between this region and the specified region. To choose the default setting, choose the Use System Default value.

Cisco recommends that you choose the default settings that you configured in the Cisco Unified Communications Manager Administration Service Parameters Configuration window. See the "Configuring Default Values" section.

Because of bandwidth constraints at most remote-site deployments, use G.729 as the recommended default audio codec setting between a new region and existing regions.

Video Call Bandwidth

For each region that is specified in the Regions window pane, click one radio button in this column as specified:

Keep Current Setting—Click this button to use the current setting for the video call bandwidth.

Use System Default—Click this button to use the default value. The default value normally specifies 384 kbps, unless the default value has been set to a different value in the Service Parameters Configuration window.

None—Click this radio button if no video call bandwidth is allotted between this region and the specified region.

kbps—Click this button to allot video call bandwidth between the region that you are configuring and the specified region. Enter the bandwidth that is available for each video call between these two regions. Valid values range from 1 to 32256.

Link Loss Type

For each region that is specified in the Regions window pane, choose the corresponding value from the drop-down list box in this column to set the link loss type to use for calls between this region and the specified region.

Choose from the following values:

Keep Current Setting—Choose this value to keep the link loss type between the region that you are configuring and the region that you specified in the Regions window pane.

Use System Default—Choose this value to use the system default value for link loss type between the region that you are configuring and the region that you specified in the Regions window pane.

Low Loss—Choose this value to specify a low-loss link loss type between the region that you are configuring and the region that you specified in the Regions window pane.

Lossy—Choose this value to specify a lossy link loss type between the region that you are configuring and the region that you specified in the Regions window pane.


The total bandwidth that is used per call stream depends on the audio codec type as well as factors such as data packet size and overhead (packet header size). The bandwidth figures shown in Table 8-2 apply for 30-ms data packets and include IP headers. Each call comprises two call streams.


Note The codecs that Table 8-2 specifies correlate to an approximate bandwidth usage per call. For information on bandwidth usage for each codec, refer to Cisco Unified Communications Solution Reference Network Design (SRND) for the current release of Cisco Unified Communications Manager.


Table 8-2 Bandwidth That Audio Codecs Use 

Audio Codec
Bandwidth Used Per Call (Including IP Headers) With 30-ms Data Packets
Description

G.711

80 kbps

This codec represents the default codec for all Cisco Unified Communications Manager calls.

G.722

80 kbps

Video endpoints typically prefer this codec.

G.723

24 kbps

The system supports this low-bit-rate codec for use with older Cisco IP Phone 12 SP Series and Cisco IP Phone 30 VIP.

G.728/iLBC

26.66 kbps for G.728

24 kbps for iLBC

Video endpoints support the G.728 low-bit-rate codec.

Internet Low Bit Rate Codec (iLBC) enables graceful speech quality degradation in the case of lost frames and is suitable for real-time communications.

G.729

24 kbps

The system supports this low bit-rate codec for Cisco Unified IP Phone 7900.

Wideband/AAC

272 kbps

The system supports this high-quality, high-bandwidth audio codec for IP-phone-to- IP-phone calls that the Cisco Unified IP Phone 7900 supports.

Use this audio codec if you want to configure the Advanced Audio Codec (AAC) for calls between SIP phones.

Advanced Audio Codec (AAC) specifies a wideband voice codec that provides improved voice fidelity and equal or better sound quality over older codecs.

GSM

29 kbps

The Global System for Mobile Communications (GSM) codec enables the MNET system for GSM wireless handsets to interoperate with Cisco Unified Communications Manager.


Deleting a Region

This section describes how to delete a region from the Cisco Unified Communications Manager database.

Before You Begin


Note You cannot delete a region that any device pools are using.


To find out which device pools use the region, choose Dependency Records from the Related Links drop-down list box on the Region Configuration window and click Go.

If the dependency records feature is not enabled for the system, the dependency records summary window displays a message that shows the action that you can take to enable the dependency records; the message also displays information about high CPU consumption that is related to the dependency records feature. For more information about dependency records, see the "Accessing Dependency Records" section on page A-2.

If you attempt to delete a region that is in use, Cisco Unified Communications Manager displays a message. Before deleting a region that is currently in use, you must perform either or both of the following tasks:

Update the device pools to use a different region. See the "Configuring a Device Pool" section on page 9-2.

Delete the device pools that use the region that you want to delete. See the "Deleting a Device Pool" section on page 9-6.

Procedure


Step 1 Find the region by using the procedure in the "Finding a Region" section.

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

Step 3 To delete the region, click the Delete Selected icon that displays in the tool bar in the upper, left corner of the window (or click the Delete Selected button that displays at the bottom of the window).



Tip The Region Configuration window displays an Items per page drop-down list box that allows you to list 25, 50, 100, 150, 200, or 250 configured regions. If you choose to display 100 or more regions, Cisco Unified Communications Manager may experience performance degradation.


Additional Information

See the "Related Topics" section.

Related Topics

Region Configuration

Finding a Region

Configuring a Region

Region Configuration Settings

Deleting a Region

Regions, Cisco Unified Communications Manager System Guide

Call Admission Control, Cisco Unified Communications Manager System Guide