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This chapter describes how to set up IP/TV Content Manager. Topics include:
The Java Web Server is configured using the JavaServer Administration Tool. Any change you make in the Administration Tool is saved in properties files.
Follow these steps to access the Administration Tool:
Step 1 Go to the URL http://<web-server>:9090.
You can substitute localhost for <web-server> if you are running the browser on the same machine as the IP/TV Content Manager.
Step 2 Enter the suggested default user name and password.
The following properties files are automatically modified during installation:
The Java Web Server uses port 80. If you have another Web server installed on the same machine, and did not change the default port during installation, you can configure Java Web Server to use a different port.
Follow these steps to configure the Java Web Server port:
Step 1 Go to the URL http://<web-server>:9090.
You can substitute localhost for <web-server> if you are running the browser on the same machine as the IP/TV Content Manager.
Step 2 Enter the user name and password.
Step 3 Click Web Service and click Manage.
Step 4 In the Web Service window, click Setup.
Step 5 Click Network.
Step 6 Enter the new port number in the Port field.
Step 7 Click Save.
Step 8 Click Restart so that your changes take effect immediately.
If you change the Java Web Server port number, you must reconfigure the IP/TV Content Manager port number in several places:
If you change the port number of the Java Web Server after installation, you need to modify the shortcut to the IP/TV Content Manager.
Follow these steps to change the default Web server port number:
Step 1 Open the following file with a text editing tool such as NotePad:
<web-server-root>\public_html\iptvfiles\launch.htm
Step 2 Locate the two references to port 80.
Step 3 Change both occurrences of 80 to the new port number.
Step 4 Save the changes and close the file.
You may now use the shortcut to access the IP/TV Content Manager.
You rarely need to change the RTSP port number of the OnDemand Manager servlet. If it becomes necessary to change the port number, you can edit the following file:
<web-server-root>\classes\iptvodmgr.properties
and change the field iptvodmgr.server.port.
For your change to take effect, you must stop and restart the OnDemand Manager servlet.
The simplest way to stop and start a servlet is to stop and restart the Java Web Server using the following steps:
Step 1 Click Start>Settings>Control Panel.
Step 2 In the Control Panel window, click Services.
Step 3 In the Services list, select JavaWebServer and click Stop.
Step 4 After the service is stopped, click Start.
Alternatively, you can follow these steps to stop and restart only the OnDemand Manager servlet:
Step 1 Go to the URL http://<web-server>:9090.
You can substitute localhost for <web-server> if you are running the browser on the same machine as the IP/TV Content Manager.
Step 2 Enter the user name and password.
Step 3 Click Web Service and click Manage.
Step 4 In the Web Service window, click Servlets.
Step 5 Click IptvOdMgr.
Step 6 Click Unload.
Step 7 When the servlet has stopped, click Load to restart it.
A computer used to access IP/TV Content Manager Version 3.0 must run Netscape Navigator 4.05 or 4.5x, or Microsoft Internet Explorer 4.x or 5.0. The browser must have Java and JavaScript enabled. Check the browser's Options or Preferences menu to be sure that these features are enabled.
These instructions assume that you are familiar with the Web, and have used a browser to access information sources on the Web. You should be familiar with the functions of your browser, and with concepts such as links. If not, we recommend that you read the documentation that was shipped with your browser, or explore the browser's help system.
To access the IP/TV Content Manager, go to the following URL:
where contentmanagerhost is the DNS name or IP address of the IP/TV Content Manager.
When you access the IP/TV Content Manager for the first time, store the URL in your Web browser's frequently visited sites list. The mechanism you use varies depending on which browser you use. Refer to your browser documentation or help system for more information.
When you access the IP/TV Content Manager, the first page that appears is the IP/TV Content Manager main page (see Figure 5-1).
The IP/TV Content Manager main page contains the following links:
The IP/TV Content Manager allows you to specify certain default parameter values, and to govern the level of information that is displayed on IP/TV Content Manager pages.
Follow these steps to set IP/TV Content Manager defaults and preferences:
Step 1 Click the Preferences link on the main page to go to the Preferences page.
Step 2 In the Multicast Addresses section at the top of the page (see Figure 5-2), select address options. Table 5-1 lists the available options, and briefly describes each option. Multicast addresses determine how far across the network your IP/TV sessions reach.
See the "Multicast Addresses" section later in this chapter for more information about globally scoped and administratively scoped addresses and multicast range or Time-to-Live (TTL) values.
See the "Limiting How Far Your Programs Reach" section later in this chapter for recommendations on using administratively scoped addresses to limit how far your IP/TV programs reach across the network.
| Parameter | Description | |
Globally Scoped Addresses | Determines whether globally scoped addresses may be specified for a program, and sets the default multicast ranges as well as the TTL values of each possible range. By default, this option is enabled, and the default multicast range is set to site. The TTL values of the available ranges are set as follows: | |
| Local | 1 |
Administratively Scoped Addresses | Determines whether administratively scoped addresses may be specified for a program, sets the start and end of the range of administratively scoped addresses the IP/TV Content Manager will assign, and sets the multicast range. By default, this option is disabled. The default address range is 239.255.0.0 through 239.255.255.255. The default multicast range is 15. | |
Default Multicast addresses | Determines whether programs scheduled by the IP/TV Content Manager default to globally scoped addresses or administratively scoped addresses. The default is globally scoped addresses. | |
Allow modification of IP addresses | Determines whether administrators may override the default IP addresses, UDP ports, and multicast ranges assigned to a program. The default is off (no modification is allowed). | |
Allow SmallCasting | Determines whether IP/TV Content Manager administrators may specify that a program be forwarded to unicast addresses. The default is off (no SmallCasting is allowed). | |
Step 3 In the Multimedia Sources section of the Preferences page (see Figure 5-3), set video and audio options. Table 5-2 briefly describes the options.
See the "Live Capture and File Format Reference" appendix for more information on the default video and audio formats and settings for various types of live-capture equipment.
| Parameter | Description |
Preferred Video Format | Sets the preferred format for live-capture video. The default is H.261. |
Compression Quality | Sets the compression quality for the preferred video format. The default is 8. This option applies only to H.261 video. |
Preferred Audio Format | Sets the preferred format for live-capture audio. The default is PCM (µ-law). |
Alternate Audio Formats | Determines if alternate audio formats are allowed, and specifies the alternate formats allowed. |
Audio/Video Bandwidth | Sets the bandwidth in kilobits per second (kbps). The default is 1150. |
Maximum Video Frame Rate | Sets the maximum video frame rate (in frames per second. The default is 30. |
Web Presentation Bandwidth | Sets the Web Presentation bandwidth in kbps. The default is 256. |
Step 4 In the Scheduled Program Management section of the Preferences Page (see Figure 5-4), set program management options for scheduled programs. Table 5-3 briefly describes the options.
| Parameter | Description |
|---|---|
Delete Local Programs | Determines how long locally created program information will be saved by the IP/TV Content Manager. The default is 24 hours after the last run completes (minimum 0, maximum 720 hours). |
Delete Announced Programs | Determines how long program announcements will be saved by the IP/TV Content Manager. By default, an announcement is deleted 24 hours after the last time it is received (minimum 0, maximum 720 hours). |
Announce Local Programs | Determines whether this IP/TV Content Manager sends out announcements about its IP/TV programs to other IP/TV Content Managers on the network. The default is off. See the "Customer Sites Using Multiple IP/TV Content Managers" section later in this chapter for details. |
Listen for Program Announcements | Determines whether this IP/TV Content Manager receives announcements from other IP/TV Content Managers. Do Not Listen: If selected, the IP/TV Content Manager will not listen for other announcements. Listen to Neighbors: If selected, the IP/TV Content Manager listens for announcements of programs that use the same administratively scoped addresses, or for programs that use global addresses if the server is defined on this IP/TV Content Manager. List for Remote Announcements: If selected, the IP/TV Content Manager listens for announcements of programs that use globally scoped addresses. Listen for All Announcements: If selected, the IP/TV Content Manager listens for all announcements. Listen to these IP/TV Content Managers: Enter the DNS name or IP address of up to three other IP/TV Content Managers for whose announcements this IP/TV Content Manager will listen. |
Step 5 In the Question Management section of the Preferences Page (see Figure 5-5), set the Question Manager preferences. Table 5-4 briefly describes the options.
| Parameter | Description |
Maximum questions per program | Limits the number of questions that may be submitted to the moderator for any one program. The default is 100 (minimum 1, maximum 1000). |
Question Manager Port | Sets the UDP port on the source server to which questions will be directed. The default is "Select any available port." The possible range is 1 to 65,535. You should specify a well-known port only if the moderator of a program will be on the other side of a firewall from the IP/TV Content Manager on which the program is defined. If that is the case, obtain a port number from the firewall administrator, who must configure the firewall to allow traffic using that UDP port number to cross the firewall. |
Step 6 In the Recording Management section of the Preferences page (see Figure 5-5), specify recording preferences. Table 5-5 describes the options.
| Parameter | Description |
Concurrent Per Server1 | Determines the maximum number of concurrent recording sessions. The default is 4 (minimum 1, maximum 128). |
Maximum Record Time2 | Determines the maximum length (in hours) of a given recording. The default is 4 (minimum 1, maximum 24). |
Step 7 In the File Transfer Management section of the Preferences page (see Figure 5-5), set the parameters for FTP file transfers to and from IP/TV servers. Table 5-6 describes the options.
See the "File Transfers" chapter for additional information on the File Transfer function.
| Parameter | Description |
Maximum Concurrent FTPs1 | The maximum number of concurrent FTP connections for each file transfer job. The default value is six concurrent connections per job. If the job has multiple sources specified, the connections are load-balanced across those source FTP servers that are responding. |
Maximum Duration per FTP | The maximum amount of time that a file transfer job is allowed to run. When this amount of time has expired since the start of the file transfer job, the job is aborted and all open FTP connections are closed. The units are hours and the default value is 8. |
Delete Completed FTP Jobs in | Determines how long the information about completed FTP jobs is saved in a Results page by the IP/TV Content Manager. The default is 24 hours (minimum 0 hours, maximum 720 hours). |
Step 8 In the Server Management section of the Preferences page (see Figure 5-6), set server management options. Table 5-7 briefly describes the options.
| Parameter | Description |
RTSP Server Port | Sets the default RTSP server port.The RTSP Port is the port number at which the IP/TV Server receives on-demand information from the IP/TV Content Manager, and must match the RTSP port configured at the server. |
Capacity Per Server | Sets the capacity per server in kbps. Server capacity is the maximum amount of multimedia data that the server can output onto the network. |
Capacity Per Cluster | Sets the capacity per server cluster in kbps. Note There is a predefined cluster called "default." Changing the Capacity per Cluster parameter in Preferences does not change the capacity for the default cluster. If you plan to use the default cluster, you must change the capacity for the default cluster to the value you want. See the "Editing a Cluster" section later in this chapter for the procedure for modifying the parameter values for a cluster. |
Total Content Manager Capacity | Sets the total capacity in kbps for all server clusters managed by this IP/TV Content Manager. |
Idle IP/TV Viewer Timeout | Sets the number of minutes IP/TV Viewer can be paused or stopped before the connection with IP/TV Server is terminated. (Default is 30 minutes. Zero disables timeouts.) |
Scheduled Reservation and OnDemand Non-preemption | Sets the number of minutes ahead of time that bandwidth is allocated for scheduled programs. An on-demand program will not be assigned to the server during the allocated time if the assignment would cause the capacity of the server to be exceeded when the scheduled program starts. On-demand programs that are active longer than the specified number of minutes may be preempted when the scheduled program starts if the server capacity would be exceeded. Setting this option to zero disables preemption but may cause the server capacity to be exceeded. |
Step 9 In the Other Options section of the Preferences Page (see Figure 5-7), set the remaining IP/TV Content Manager preferences. Table 5-8 briefly describes the options.
| Parameter | Description |
|---|---|
Proximity Group Priorities | Sets the number of server clusters available to Proximity Groups. The default is 5. See the "About Proximity Management" section later in this chapter for information about proximity groups. |
Save Journaling Records for | Sets the number of days that journaling records are kept. The default is 0, which disables journaling. See the "Journaling" section in the "Administering the IP/TV Content Manager" chapter for information about journaling |
Step 10 When you have set all the preferences appropriate to your site, click Revise Preferences at the bottom of the page to submit the completed form to the IP/TV Content Manager.
If the IP/TV Content Manager finds errors or omissions in the form, the Data Entry Errors page prompts you to return to the Preferences page to modify the information.
When you have finished correcting the errors, click Revise Preferences again to submit the corrections to the IP/TV Content Manager.
If the form is properly completed, you return automatically to the IP/TV Content Manager main page.
When you set up a new channel, or a new program that is not assigned to a channel, the new channel or program is assigned the default multicast address type specified in the Preferences page.
All Class D IP addresses (224.0.0.0 through 239.255.255.255) are IP multicast addresses. Within Class D, three types of multicast address are available:
Packets with link-level scoped multicast addresses are configured in all routers as unforwardable. A program defined with a link-level scoped IP multicast address is not forwarded by any router, regardless of the multicast range defined for the program (see the "Globally Scoped IP Multicast Addresses" section later in this chapter for information about multicast ranges). We recommend that you do not use addresses in the link-level scoped address range when you set up programs.
Globally scoped multicast addresses use a mechanism called "multicast ranges" to limit how far across the intranet or Internet your program reaches.
The IP/TV Content Manager allows you to set the default multicast range, and to set the explicit values for each available range. The value for a range determines the TTL parameter for all channels or programs assigned that range.
The TTL parameter refers to the number of hops a packet can travel before the next router in the path declines to forward the packet. Table 5-9 lists the available multicast ranges and their default values.
| Range | Number of Hops |
|---|---|
Local (default) | 1 |
Site | 15 |
Regional | 63 |
Worldwide | 127 |
The primary purposes of the administratively scoped IP multicast address range are:
Administratively scoped addressing relies on the routers in the network to limit how far across the intranet or Internet your programs are forwarded.
Administrative scope zones may topologically overlap, but when they do, the address ranges must not intersect. (Topologically disjointed zones may reuse the same address range.) A separate IP/TV Content Manager must be used for each distinct address range because each IP/TV Content Manager only supports one range.
Follow these steps to configure administratively scoped multicast addresses:
Step 1 In the Preferences page, select Allow Use of Admin. Scoped Addresses and clear Allow Use of Globally Scoped Addresses.
Step 2 Set the start and end of the address range you want to use. The IP/TV Content Manager will always assign a program's multicast address within the range specified here.
Step 3 Configure each router that constitutes a boundary point for this range to refuse to forward packets with addresses in that range (see your router documentation for this procedure).
Administratively scoped IP multicast addresses are an important tool in limiting the impact of multimedia programs on your network.
If you do not want your programs to be seen outside your site, use the following strategy:
IP/TV supports two levels of security:
The IP/TV Content Manager allows you to set passwords in two ways:
If a password is set (either for the channel or for the program), the user who wants to view a program must supply a matching password in order to view or subscribe to the program.
The password is always saved in encrypted form to preserve security.
IP/TV Content Manager allows you to limit write access to the IP/TV Content Manager to a browser running on a particular host name, address, or set of addresses.
The file <web-server-root>\cgi-bin\iptv\prefs\admin.prf sets the addresses that are allowed to access the IP/TV Content Manager. As shipped (see Figure 5-8), admin.prf gives full access to all users.
The file may be edited using a text-editing tool such as Notepad.
The pound sign (#) at the beginning of a line indicates that the line is a comment, not active code. To activate any of the lines, simply remove the pound sign and any adjacent spaces. The line of code you want to activate must begin at the left margin of the file.
If you modify admin.prf to limit access to the IP/TV Content Manager, and an unauthorized user attempts to change preferences or to modify or delete a program, channel, recording, or file transfer, the following message appears when the user submits the change to the IP/TV Content Manager:
You have read-only access to the IP/TV Content Manager. You are not authorized to make any modifications.
Modifications to admin.prf take effect as soon as the changes are saved to disk.
Together, the Server Clusters page and the Proximity Groups page of the IP/TV Content Manager allow you to define the proximity of IP/TV Viewers to IP/TV Servers. Proximity management allows you to restrict IP/TV Viewers to receiving on-demand video only from specified server clusters and also allow you to balance on-demand loads among servers.
Servers and server clusters are defined in the Server Clusters pages of the IP/TV Content Manager. Each server is a member of a single cluster.
The IP/TV Content Manager is shipped with a cluster called Default. If you do not want to use clusters, assign all your servers to the Default cluster.
A collection of subnets is defined as a proximity group. Any number of subnets can be defined within a single proximity group.
The assignment of proximity groups to server clusters is defined by the administrator, based on priority. Priority might be determined by physical distance, bandwidth capacity, network topology, or any other factor.
When a client requests an on-demand program, the OnDemand Manager verifies which proximity group the client belongs to, and obtains the list of server clusters that can be used to meet the client request. The OnDemand Manager then routes the IP/TV Viewer request to the cluster with the highest priority for that proximity group, and to the least busy server in that cluster.
If that cluster is unavailable, the OnDemand Manager then tries other clusters in order of their priority for that proximity group. The OnDemand Manager assigns the least busy server in the cluster to meet the client request, or, depending on how the system has been configured by the IP/TV administrator, may deny the request.
The IP/TV Content Manager requires that you define all the machines that act as IP/TV Servers, and all other file servers that will be used for the transfer of media files.
For scheduled program servers, you may define the servers in either of two ways:
Follow these steps to define an IP/TV server cluster:
Step 1 On the IP/TV Content Manager main page, click the Server Clusters link. The Server Clusters page appears (see Figure 5-9).
Step 2 In the Server Clusters page, click the New Cluster link on the task bar. The New Cluster page appears (see Figure 5-10).
Step 3 Enter the name of the new cluster.
Step 4 In the Cluster Information section of the page, enter an optional description of the cluster and the cluster capacity in kbps.
Step 5 Click Add Cluster at the bottom of the page to send the completed form to the IP/TV Content Manager.
Follow these steps to review a cluster definition:
Step 1 On the Server Clusters page, click the Review link for the cluster.
Step 2 Read the Review cluster page to find the information you want to see.
Step 3 Click Edit or Delete at the bottom of the page to edit cluster information or delete the cluster. Click Servers to display the servers assigned to this cluster.
Follow these steps to delete a cluster:
Step 1 On the Server Clusters page, click the Delete link for the cluster. Or, on the Review Cluster page, click Delete at the bottom of the page.
Step 2 The Delete Cluster page asks you to confirm that you want to delete the cluster.
Step 3 If you still want to delete the cluster, click Delete Cluster. You return automatically to the Server Clusters page.
Follow these steps to edit a cluster definition:
Step 1 On the Server Clusters page, click the Edit link for the cluster. Or, on the Review Cluster page, click Edit at the bottom of the page. The Edit Cluster page appears.
Step 2 In the Edit Cluster page, make any necessary changes.
Step 3 Click Revise Cluster at the bottom of the page to send the changes to the IP/TV Content Manager.
If the IP/TV Content Manager finds errors or omissions in the page, the Data Entry Errors page prompts you to return to the Edit Cluster page to modify the information.
When you have finished correcting the errors, click Revise Cluster again to submit the corrections to the IP/TV Content Manager.
If the page is properly completed, you return automatically to the Server Clusters page.
Follow these steps to define an IP/TV server:
Step 1 On the IP/TV Content Manager main page, click the Server Clusters link. The Server Clusters page appears (see Figure 5-9).
Step 2 To see all servers currently defined in a given cluster, click the Servers link for that cluster.
Step 3 Click the New Server link on the task bar. The New Server page appears (see Figure 5-11).
Step 4 Enter the name of the new server. We recommend that you define a server by its domain name, not its IP address. See the "Installing IP/TV Server" chapter for more information.
Step 5 In the Server Information section of the page, enter a description of the server.
The description is optional. However, it is useful to record information such as the location of the server and its capabilities (for example, a server that is used solely for live capture and has appropriate hardware such as a satellite feed or live-capture camera, a server in a specified department that is used to multicast all IP/TV programs for that department, or a server that is a multihomed host).
We recommend that you use the Description field to make it easier for IP/TV Content Manager administrators to select the appropriate server for a given program.
Step 6 Click the default cluster or another cluster name in the cluster list.
Step 7 Specify the server type. Click IP/TV Server if you are defining an IP/TV server. Click Other Server if you are defining a file transfer server.
Step 8 If you are defining an IP/TV Server, leave the RTSP port unchanged or enter a new port number. The default number in this field is the value set on the Preferences page.
Step 9 Enter the capacity of the new server. The capacity is the maximum amount of multimedia data (in kbps) that the server can output onto the network.
Step 10 If the server has Windows Media Services installed, and you want the server to be able to serve programs using either IP/TV Server or Windows Media Services, select Interoperate with Windows Media Services.
Step 11 If you plan to use the file transfer function to transfer files to/from the server, in the File Transfer Information portion of the page (see Figure 5-12), enter the user ID and password (in both boxes) that this server requires for FTP access.
Step 12 In the SmallCast Information section of the New Server page, enter the names or IP addresses of IP/TV Servers to which this server can be instructed to SmallCast programs. See the "SmallCasting Scheduled Programs" chapter for general information about the SmallCast capability. Refer to the "Examples" section in the IP/TV Content Manager User Guide for an example of a program that uses SmallCast.
Step 13 Click Add Server at the bottom of the page to send the completed form to the IP/TV Content Manager.
Step 14 Repeat this procedure for each server you want to define.
Follow these steps to review a server definition:
Step 1 On the Servers page, click the Review link for the server. The Review Server page appears.
Step 2 Scroll through the Review Server page to find the information you want to see.
Step 3 Click Edit or Delete at the bottom of the page to edit server information or delete the server.
Follow these steps to delete a server:
Step 1 On the Servers page, click the Delete link for the server. Or, on the Review Server page, click Delete at the bottom of the page. The Delete Server page appears.
Step 2 If you still want to delete the server, click Delete Server. You return automatically to the Servers page.
The Delete Server page asks you to confirm that you want to delete the server.
 | Caution If you delete the server, all scheduled and on-demand programs assigned to the server will become inoperable, and all scheduled file transfers will be deleted. |
Follow these steps to edit a server definition:
Step 1 On the Servers page, click the Edit link for the server. Or, on the Review Program page, click Edit at the bottom of the page. The Edit Server page appears.
Step 2 In the Edit Server page, make any necessary changes.
Step 3 Click Revise Server at the bottom of the page to send the changes to the IP/TV Content Manager.
If the IP/TV Content Manager finds errors or omissions in the page, the Data Entry Errors page prompts you to return to the Edit Server page to modify the information.
When you have finished correcting the errors, click Revise Server again to submit the corrections to the IP/TV Content Manager.
If the page is properly completed, you return automatically to the Servers page.
The Search page allows you to find the cluster for a given server. Figure 5-13 shows an example of the Search page.
Follow these steps to find the cluster for a given server:
Step 1 On the Server Clusters page, click the Search link on the task bar.
Step 2 On the Search page, click a server from the list.
Step 3 Click the corresponding Go button. A new Search page lists the results of your search.
A proximity group is a collection of subnets. Any number of subnets can be defined within a single proximity group.
As shipped, the IP/TV Content Manager is configured with a default proximity group. The default proximity group contains a single subnet (0.0.0.0/0) named The World. The default proximity group gets its IP/TV programs from the default server cluster. With this initial configuration, all viewers in your network can view any program defined on any server in the default cluster.
If you prefer not to use proximity groups, you need not change this default configuration.
However, if you define new clusters, proximity groups, and subnets, your new definitions take precedence over the default configuration. Any viewers not in a proximity group you define remain in the default proximity group, and can view only those programs on the default server cluster.
If you want to tighten security, after setting up your own clusters, proximity groups, and subnets, delete the default proximity group and the default cluster. In this way, you can prevent any viewer not in a defined proximity group from viewing any IP/TV programs.
Follow these steps to define a proximity group:
Step 1 On the IP/TV Content Manager main page, click the Proximity Groups link. The Proximity Groups page appears (see Figure 5-14).
If no proximity groups have been defined, the page displays only the default proximity group, which includes all clients that belong to an unspecified network.
Step 2 Click the Subnets link for a given proximity group to display a list of all subnets currently defined for that proximity group.
Step 3 To create a new proximity group, click the New Proximity Group link on the task bar. The New Proximity Group page appears (see Figure 5-15).
Step 4 Enter the name of the proximity group.
Step 5 Enter a description of the proximity group.
Step 6 In the Cluster Priority List section of the New Proximity Group page, select clusters in order of priority.
The cluster list determines the order in which the OnDemand Manager tries each server cluster when a request for an on-demand program is received from IP/TV Viewer. The maximum number of clusters in the hierarchy is set in the Preferences page of the IP/TV Content Manager. The default is five.
Step 7 Click Add Proximity Group at the bottom of the page to send the completed form to the IP/TV Content Manager.
Follow these steps to review a proximity group:
Step 1 On the Proximity Groups page, click the Review link for the proximity group. The Review Proximity Group page appears.
Step 2 Scroll through the Review Proximity Group page to find the information you want to see.
Step 3 Click Edit or Delete at the bottom of the page to edit proximity group information or delete the proximity group, or click Back to return to the Proximity Groups page.
Follow these steps to delete a proximity group:
Step 1 On the Proximity Groups page, click the Delete link for the proximity group. Or, on the Review Proximity Group page, click Delete at the bottom of the page. The Delete Proximity Group page appears.
Step 2 The Delete Proximity Group page asks you to confirm that you want to delete the proximity group.
Step 3 If you still want to delete the proximity group, click Delete Proximity Group. You return automatically to the Proximity Groups page.
Follow these steps to edit a proximity group:
Step 1 On the Proximity Groups page, click the Edit link for the proximity group. Or, on the Review Proximity Group page, click Edit at the bottom of the page. The Edit Proximity Group page appears.
Step 2 In the Edit Proximity Group page, make any necessary changes.
Step 3 Click Revise Proximity Group at the bottom of the page to send the changes to the IP/TV Content Manager.
If the IP/TV Content Manager finds errors or omissions in the page, the Data Entry Errors page prompts you to return to the Edit Proximity Group page to modify the information.
When you have finished correcting the errors, click Revise Proximity Group again to submit the corrections to the IP/TV Content Manager.
If the page is properly completed, you return automatically to the Proximity Groups page.
A new Search page lists the results of your search.
Follow these steps to search for the proximity group for a given host:
Step 1 On the Proximity Groups page, click the Search link on the task bar. The Search page appears (see Figure 5-13).
Step 2 To find the proximity group for a host, enter the host name and click the corresponding Go button.
Follow these steps to define a new subnet:
Step 1 To create a new subnet, click the New Subnet link on the task bar on the Proximity Groups page. The New Subnet page appears (see Figure 5-16).
Step 2 Enter the name of the new subnet.
Step 3 Enter an optional description of the new subnet.
Step 4 Click a proximity group for the new subnet from the list.
Step 5 Enter the IP address of the new subnet, and an optional subnet mask.
Step 6 Click Add Subnet at the bottom of the page to send the completed form to the IP/TV Content Manager.
If the IP/TV Content Manager finds errors or omissions in the page, the Data Entry Errors page prompts you to return to the New Subnet page to modify the information.
When you have finished correcting the errors, click Add Subnet again to submit the corrections to the IP/TV Content Manager.
If the page is properly completed, you return automatically to the Subnets page.
Follow these steps to review a subnet definition:
Step 1 On the Proximity Groups page, click the Subnets link for the Proximity Group with which the subnet is associated, then click the Review link for the subnet. The Review Subnet page appears.
Step 2 Scroll through the Review Subnet page to find the information you want to see.
Step 3 Click Delete or Edit at the bottom of the page to delete or edit the subnet, or click Back to return to the Subnets page.
Follow these steps to delete a subnet:
Step 1 On the Subnets page, click the Delete link for the subnet. Or, on the Review Subnets page, click Delete at the bottom of the page. The Delete Subnet page appears.
Step 2 The Delete Subnet page asks you to confirm that you want to delete the subnet.
Step 3 If you still want to delete the subnet, click Delete Subnet. You return automatically to the Subnets page.
Follow these steps to edit a subnet:
Step 1 On the Subnets page, click the Edit link for the subnet. Or, on the Review Subnet page, click Edit at the bottom of the page. The Edit Subnet page appears.
Step 2 In the Edit Subnet page, make any necessary changes.
Step 3 Click Revise Subnet at the bottom of the page to send the changes to the IP/TV Content Manager.
If the IP/TV Content Manager finds errors or omissions in the page, the Data Entry Errors page prompts you to return to the Edit Subnet page to modify the information.
When you have finished correcting the errors, click Revise Subnet again to submit the corrections to the IP/TV Content Manager.
If the page is properly completed, you return automatically to the Subnets page.
Follow these steps to search for the proximity group for a subnet:
Step 1 On the Proximity Groups page, click the Search link on the task bar. The Search page appears (see Figure 5-13).
Step 2 To find a proximity group for a subnet, enter the IP address and (optional) subnet mask, and click the corresponding Go button. The IP address and subnet mask must exactly match the information you entered when you defined the subnet in the New Subnets page.
Channels are used only for scheduled programs and not for on-demand programs. The use of channels is optional. The IP/TV Content Manager allows you to set up programs that are not assigned to any channel.
If you decide to use channels as a way to organize IP/TV programs, you can define IP/TV channels in any of several ways. For example, you might choose one of the following schemes:
To display the Channels page, click the Channels link on the task bar on the Scheduled Programs page. Figure 5-17 shows an example of the Channels page.
The following links are available for each channel:
Follow these steps to create a new channel:
Step 1 In the Channels page, click the New Channel link on the task bar. The New Channel page appears (see Figure 5-18).
Step 2 Enter the channel name. Use a fairly short name, such as Sales Channel or News Channel.
Step 3 Enter the description of the channel. The description field allows you to enter a longer description of the channel than the name field permits.
Step 4 If there is a Web site that provides additional information about the channel, you may enter the URL of that Web site.
Step 5 If you want the channel to have a password, enter the password in both password boxes. The password applies to every program assigned to this channel.
Step 6 In the Multimedia Source Information section of the New Channel page (see Figure 5-19), enter the preferred video and audio formats to be used by programs assigned to this channel, or accept the defaults specified in Preferences. Table 5-10 describes the options.
| Parameter | Description |
Preferred Video Format | Defines the default video format. |
Preferred and alternate audio formats | Defines the default audio format, and any alternates that can be used to override the default. You can choose to allow all alternates, or only selected alternates. |
Play Video | Defines whether the video portion of programs assigned to this channel is shown. |
Play Audio | Defines whether the audio portion of programs assigned to this channel is shown. |
Play SlideCast | Defines whether programs assigned to this channel include a SlideCast portion in addition to video and audio portions. You may select either SlideCast or Web Presentation, but not both. |
Play Web Presentation | Defines whether programs assigned to this channel include a Web Presentation portion in addition to video and audio portions. You may select either SlideCast or Web Presentation, but not both. |
Step 7 In the Multimedia Address Information section of the New Channel page (see Figure 5-20), enter information about the addresses to be used for programs assigned to this channel, or accept the defaults specified in Preferences. Table 5-11 describes the options.
| Parameter | Description |
Select Admin. Scoped Addresses1 | Assigns administratively scoped addresses to be used for all programs assigned to this channel. |
Select Global Scoped Addresses1 | Assigns global scoped addresses for all programs assigned to this channel. |
Use these Addresses1 | Overrides the default addresses for this channel, and requires that you enter the IP addresses and UDP port numbers to be used for the video, audio, and SlideCast or Web Presentation portions of all programs assigned to this channel. |
Multicast Range1 | Sets the multicast range for all programs assigned to this channel. |
Video Address and UDP Port1 | These two parameters define the video IP address and UDP port for programs assigned to this channel. See Table 5-12 for UDP port ranges. |
Audio Address and UDP Port1 | These two parameters define the audio IP address and UDP port for programs assigned to this channel. See Table 5-12 for UDP port ranges. |
SlideCast/Web Presentation Address and Port1 | These two parameters define the IP address and UDP port for the SlideCast or Web Presentation portion of programs assigned to this channel. See Table 5-12 for UDP port ranges. |
| 1If the ability to override the default is disabled in Preferences, this parameter does not appear. |
Table 5-12 lists the UDP port ranges used by the IP/TV Content Manager for various types of data streams. If you decide to specify port numbers explicitly rather than letting the IP/TV Content Manager assign them, you should choose even numbered ports within these ranges.
| Type of Stream | Port Number Range |
|---|---|
Audio | 16,384 through 32,766 |
Web Presentation | 32,768 through 49,150 |
Video or SlideCast | 49,152 through 65,534 |
Step 8 In the Contact Information section of the New Channel page (see Figure 5-21), enter the name, telephone number, and e-mail address of the person users can contact with questions about the channel.
Step 9 Click Create Channel at the bottom of the New Channel page to send the form to the IP/TV Content Manager.
If the IP/TV Content Manager finds errors or omissions in the page, the Data Entry Errors page prompts you to return to the New Channel page to modify the information.
When you have finished correcting the errors, click Create Channel again to submit the corrections to the IP/TV Content Manager.
If the form is properly completed, you return automatically to the Channels page.
Follow these steps to review a channel:
Step 1 On the Channels page, click the Review link for the channel you want to review. the Review Channel page appears.
Step 2 Scroll through the Review Channel page to find the information you want to see.
Step 3 After you have reviewed the information, click Back to return to the Channels page, or click Edit or Delete at the bottom of the page to modify or delete the channel.
Follow these steps to delete a channel:
Step 1 On the Channels page, click the Delete link for the channel. Or, on the Review Channel page, click Delete Channel at the bottom of the page. The Delete Channel page appears.
Click Delete Channel to delete the channel.
Click Back to return to the channels page without deleting the channel and its programs.
Follow these steps to edit a channel:
Step 1 On the Channels page, click the Edit link for the channel. Or, on the Review Channel page, click Edit Channel at the bottom of the page. The Edit Channel page appears.
Step 2 Scroll through the Edit Channel page to find the information you want to change. The page allows you to change any field that was entered when the channel was created.
Step 3 Click Revise Channel at the bottom of the page to send the changes to the IP/TV Content Manager.
If the IP/TV Content Manager finds errors or omissions in the page, the Data Entry Errors page prompts you to return to the Edit Channel page to modify the information.
When you have finished correcting the errors, click Revise Channel again to submit the corrections to the IP/TV Content Manager.
If the page is properly completed, you return automatically to the Channels page.
Posted: Thu Oct 28 16:08:49 PDT 1999
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