Table Of Contents
Using Cisco QAM Gateway Manager
Launching Cisco QAM Gateway Manager
Main Window Components
Menu Bar
Toolbar
Status Bar
Navigation Tree
Work Area
Resizing the Navigation Tree and Work Area
Using Help
Screen-Specific Help
Full Help Set
Exiting Cisco QAM Gateway Manager
Establishing Communication with Cisco QAM Gateway Devices
Adding a Device
Removing a Device
Using the Telnet Window
Configuration Tasks
Loading a Configuration
Configuring SNMP Parameters
Saving a Configuration to a TFTP Server
Configuring Gigabit Ethernet Input Ports into a VLAN
Configuring Video Routing
Setting Emulation Mode
Setting the Output Frequency and Output Power of the QAM Channels
Setting Up, Editing, and Routing a Video Stream to QAM Channels
Setting Up PSI Parameters
Configuring Program Data Delivery
Using Cisco QAM Gateway Manager
This chapter describes the steps required to launch Cisco QAM Gateway Manager and configure Cisco uMG9850 QAM modules installed in Cisco Catalyst switches.
•
Launching Cisco QAM Gateway Manager
• Main Window Components
• Using Help
• Exiting Cisco QAM Gateway Manager
• Establishing Communication with Cisco QAM Gateway Devices
• Configuration Tasks
Launching Cisco QAM Gateway Manager
To launch Cisco QAM Gateway Manager, click on the CQGM shortcut icon on the desktop or click Start > Programs > Cisco Systems > Cisco QAM Gateway Manager. After displaying a splash screen, the Main Window appears (see Figure 3-1).
Figure 3-1 Main Window
Main Window Components
The main window (see Figure 3-1) consists of five areas:
1. Menu bar
2. Toolbar
3. Status bar
4. Navigation tree
5. Work area
Each of these areas is discussed in the following sections.
Menu Bar
The menu bar (see Figure 3-2) provides access to common application functions and tasks (see Table 3-1).
Figure 3-2 Menu Bar
Table 3-1 Menu Bar Functions
Menu
|
Function
|
Description
|
File
|
Add Device
|
Adds Cisco Catalyst switches to the device list.
|
Load configuration
|
Provides options to:
•Load a configuration file from a TFTP server to the startup configuration.
•Load a configuration file from a TFTP server to the running configuration.
•Copy startup configuration to running configuration.
•Copy running configuration to startup configuration.
|
Save configuration to TFTP server
|
Provides options to:
•Save the startup configuration to a TFTP server.
•Save the running configuration to a TFTP server.
|
Configure SNMP Parameters
|
When "Cisco QAM Gateway Manager" (root) is selected in the navigation tree, configures SNMP polling parameters.
When a Cisco Catalyst switch is selected in the navigation tree, configures the SNMP community string for that device.
|
Close All
|
Closes all open views and configuration dialog boxes.
|
Exit
|
Exits Cisco QAM Gateway Manager application.
|
View
|
Chassis
|
Displays chassis statistics.
|
Slot
|
Displays contents and status of the Cisco uMG9850 modules in Cisco Catalyst switch chassis, and provides multiple configuration options.
|
All Sessions
|
Lists both active and idle sessions.
|
Sessions
|
Lists only active sessions.
|
Multicast Sessions
|
Lists all multicast sessions.
|
Interface
|
Displays QAM, ASI, or Ethernet interface configurations.
|
Configure
|
Configure VLAN
|
Assigns an IP address and optional subnet mask to a selected VLAN. Activates or suspends a VLAN.
|
Telnet
|
Device 1
|
Allows selection of connected devices for Telnet sessions.
|
Device n
|
Window
|
various
|
Lists all open/active views and configuration dialog boxes.
|
Help
|
Contents
|
Provides access to all help files by Table of Content heading and text search.
|
About
|
Displays software version of Cisco QAM Gateway Manager.
|
Toolbar
The toolbar ( Figure 3-3) provides quick access to some commonly performed tasks (see Table 3-2).
Figure 3-3 Toolbar
Table 3-2 Toolbar Functions
Tool
|
Description
|
Add Device
|
Adds Cisco Catalyst switches to the navigation tree.
|
Configure
|
When "Cisco QAM Gateway Manager" (root) in the navigation tree (see Figure 3-1) is selected, allows configuration of SNMP polling parameters.
When device is selected in the navigation tree, configures the SNMP community string for that device.
|
Refresh
|
Refreshes current view.
|
Stop
|
Stops refresh process for current view.
|
Status Bar
The Status Bar (see Figure 3-4) indicates status of configuration load and refresh operations (see Table 3-3).
Figure 3-4 Status Bar
Table 3-3 Status Bar Messages
Function
|
Description
|
Done
|
Function is complete.
|
Refreshing tree. Please wait.
|
Navigation tree refresh in process.
|
Loading slot configuration. Please wait.
|
Slot View information being loaded.
|
Loading Ethernet configurations. Please wait.
|
Ethernet Port View information being loaded.
|
Loading QAM channel configurations. Please wait.
|
QAM Channel View information being loaded.
|
Loading chassis configurations. Please wait.
|
Chassis View information being loaded.
|
Loading session configuration. Please wait.
|
Session View or session status information is being loaded.
|
Loading notification history. Please wait.
|
Refreshing Notification History table.
|
Loading VLAN configurations. Please wait
|
Refreshing VLAN configuration information.
|
Navigation Tree
The Navigation Tree (see Figure 3-5) lists all added devices. Each entry expands to display its components. Use the scroll bar to see the full expansion.
Figure 3-5 Navigation Tree
To refresh the navigation tree, select and right-click on "Cisco QAM Gateway Manager" at the top of the tree and choose Refresh tree. (See Figure 3-6.)
Figure 3-6 Refresh Navigation Tree
Note Refreshing the navigation tree also collapses the navigation tree to the device level.
Work Area
The Work area (see Figure 3-7) can contain a variety of view windows and configuration dialog boxes. This area changes depending on the function being performed (see Table 3-4). Up to 30 of these windows can be open simultaneously.
Figure 3-7 Work Area
Table 3-4 lists configuration, monitoring, and troubleshooting tasks that are commonly performed, and provides a cross-reference to the appropriate view or configuration window.
Tip Print out Table 3-4 and keep it as a quick reference tool.
Table 3-4 Quick Reference—Work Area Navigation Map
Go To . . .
|
For This Task. . .
|
Or Subtask . . .
|
Notes
|
Chassis View
•Contents and operating status of each slot in the Cisco Catalyst switch.
|
Setting Up PSI Parameters.
|
Setting PMT and PAT Intervals for the Switch.
|
|
Setting PMT and PAT Intervals for a QAM Channel.
|
|
Setting TSID and NIT-PID Values.
|
|
Setting Up, Editing, and Routing a Video Stream to QAM Channels.
|
Statically Setting Session Timeouts.
|
|
Slot View
•For a specific QAM device, a summary of the QAM channels' administrative and link status, and the administrative and link status of ASI and Ethernet ports.
•Information on number of incoming sessions and outgoing programs.
|
Configuring Gigabit Ethernet Input Ports into a VLAN (see Notes).
|
Configuring Video Routing.
|
See also Ethernet Port View and Modifying a VLAN's Address or Administrative Status.
|
Setting Up, Editing, and Routing a Video Stream to QAM Channels.
|
Configuring Maximum Jitter for a Session.
Statically Setting Session Timeouts.
|
See also QAM Channel View and Chassis View.
|
Setting Emulation Mode.
|
|
|
Configuring Program Data Delivery.
|
|
|
Session View
•Statistics for active sessions.
|
View table of all active sessions.
|
|
|
All Session View
•Statistics for both idle and active sessions.
|
View table of both idle and active sessions.
|
View individual session statistics.
|
|
Multicast Session View
•Statistics for multicast sessions.
|
View table for multicast sessions.
|
View individual session statistics.
|
|
ASI Port View
•For a specific ASI port, lists the current configuration parameters for the ASI port.
|
Setting administrative status for the port
Setting Byte Gap
Select QAM Routed
|
|
|
Ethernet Port View
•For a specific Ethernet port, lists current status and configuration and allows configuration of the administrative status, switchport status, VLAN number, IP address and subnet mask.
|
Setting administrative status for the port
Setting switchport status
|
|
|
Configuring Gigabit Ethernet Input Ports into a VLAN.
|
Assigning the Input GE Port to a VLAN.
|
See also Ethernet Port View and Slot View.
|
QAM Channel View
•Lists the current configuration parameters for the selected QAM channel.
|
Configuring Gigabit Ethernet Input Ports into a VLAN.
|
Set administrative status for the port
|
Also see QAM Summary View.
|
Setting Up, Editing, and Routing a Video Stream to QAM Channels.
|
Setting the Modulation Format.
|
|
Configuring the FEC Interleave Level and Mode.
|
|
Statically Routing a Range of Program Sessions to a QAM Channel (UDP Port Mapping).
|
|
Setting the Output Frequency and Output Power of the QAM Channels.
|
|
|
QAM Summary View
•Allows viewing and configuration of all QAM channels on a specific Cisco uMG9850 QAM module slot.
|
|
|
|
Notification History
•Lists statistics for a device. Each time a device threshold is passed or an error condition is detected, an entry is recorded in the table.
|
|
|
See also Setting and Monitoring Utilization Thresholds.
|
Telnet Window
•Allows entry of CLI commands to configure Cisco Catalyst switches.
|
Using the Telnet Window
Telnet—CLI show commands.
|
|
|
Choose an already opened view from the Window menu or open a new one using the View menu. To close all views simultaneously, choose File > Close All.
Resizing the Navigation Tree and Work Area
To hide the navigation tree and expand the work area, click on the left arrow. To hide the work area and expand the navigation tree, click on the right arrow. (See Figure 3-8.)
Figure 3-8 Hide Buttons
To readjust the navigation tree and work area to specific widths, place the cursor on the margin as shown in Figure 3-9. When it becomes a double-ended arrow, drag the margin to the left or right.
Figure 3-9 Sizing the Navigation Tree and Work Area
Using Help
The help files for the Cisco QAM Gateway Manager application are provided to simplify the use of the application. These files can be accessed in two ways:
•Help for a specific screen can be accessed by clicking Help on that screen.
•The full help set can be accessed by choosing Help > Contents or by pressing F1.
Screen-Specific Help
Clicking Help in a window opens the help set and displays help files for that particular window. These files include discussions of any configuration options or read-only values present. Further navigation cross-references are included where necessary for greater understanding.
Full Help Set
Choose Help > Contents or press F1 to open the entire help set.
The navigation pane on the left side of the window includes three tabs: the Contents tab, the Index tab, and the Search tab. Navigation and printing aids are present in the help files and in the help toolbar. See Figure 3-10.
Figure 3-10 Help Tools and Tabs
Contents Tab
Click the Contents tab to display a Table of Contents of all help files, which allows you to click on a specific subject or task for information. See Figure 3-11.
Figure 3-11 Help File Table of Contents
Index Tab
Click the Index tab and enter an index term. The index term list is searched and if found, the page is displayed. See Figure 3-12.
Figure 3-12 Help File Index Tab
Search Tab
Click the Search tab and enter a text search term. All help files are searched for the term, and the results (number of occurrences) are displayed in the left side of the window in order of significance. The page containing the first occurrence appears on the right. See Figure 3-13.
Figure 3-13 Help Files Search Tab
Navigation
Table 3-5 shows the navigation buttons and describes their use.
Table 3-5 Navigation Buttons
Icon
|
Name
|
Use
|
|
Navigation Arrows
|
Click the arrows at the top and bottom of all help file text windows to step backward and forward sequentially through the files.
|
|
Return to Previous
|
Use the arrows in the toolbar to return directly to the most recently viewed text.
|
|
Printer Functions
|
Click the printer icons in the toolbar for direct printing (left icon) or page setup (right icon).
|
Exiting Cisco QAM Gateway Manager
To exit the application, follow these steps:
Step 1 Do the following:
•Choose File > Exit (see Figure 3-14).
Figure 3-14 File Exit
The Save Running Configuration dialog box appears (see Figure 3-15).
Figure 3-15 Save Running Configuration
Step 2 Click Cancel to keep the application active and return to configuration tasks, click Save All and Quit to save all configurations applied during this session to the startup configuration, or click Save None and Quit to exit without saving any configurations applied during this session. All active windows are closed and the Cisco QAM Gateway Manager session ends.
Note If the Save all configurations to startup configuration? check box is selected in the Add Device or Configure SNMP Parameters dialog box (see "Adding a Device" section and "Configuring SNMP Parameters" section), configuration changes are automatically saved to the startup configuration each time Apply is clicked, independently of Save All and Quit or Save None and Quit selections.
Establishing Communication with Cisco QAM Gateway Devices
• Adding a Device
• Removing a Device
• Using the Telnet Window
Adding a Device
To configure and monitor Cisco QAM Gateway devices, you must first add Cisco Catalyst switches to the device list. Up to 20 devices can be managed by Cisco QAM Gateway Manager.
To add a device:
Step 1 Select Add Device using one of the following methods:
•Choose File > Add device (see Figure 3-16).
Figure 3-16 Add Device Using File Menu
•Click the Add Device tool (see Figure 3-17).
Figure 3-17 Add Device Using Add Device Button
•In the navigation tree, select, then right-click "Cisco QAM Gateway Manager" (see Figure 3-18).
Figure 3-18 Add Device Using Right Mouse Click
Step 2 In the Add Device dialog box, enter the IP Address and Community String of the device (see Figure 3-19).
Note Entering the SNMP community string does not change the value on the device. It authenticates access to the device. The community string must be defined before adding the device to the list. See Before Using Cisco QAM Gateway Manager.
If you want to automatically save all configurations to the startup configuration, click the check box. When the check box is selected, any change made to a device using Cisco QAM Gateway Manager is automatically saved to both the running and startup configuration files of that device. If the check box is not selected, configuration changes are saved only to the running configuration.
Figure 3-19 Add Device Dialog Box
Note When using the option to automatically save all changed configuration information to the startup configuration file, you can make a backup of the existing startup configuration to a TFTP server before changing configurations. Choose File > Save configuration to TFTP server. This backup can be used in case it is necessary to restore the original startup configuration after a device reload. (See Saving a Configuration to a TFTP Server.)
Step 3 Click OK. The device name and its IP address are displayed in the navigation tree (see Figure 3-20).
Figure 3-20 Navigation Tree with Device Added
Removing a Device
To remove a Cisco Catalyst switch from the list:
Step 1 In the navigation tree, select the switch to remove, then right-click. (see Figure 3-21).
Figure 3-21 Selecting Remove
Step 2 Choose Remove. A confirmation window appears.
Step 3 Click Yes.
Using the Telnet Window
Use the Telnet window to enter command-line interface (CLI) commands such as show commands, or perform other configuration tasks on Cisco Catalyst switches listed in the navigation tree.
Note For further information regarding CLI commands refer to Configuring the Cisco uMG9850 QAM Module, the Cisco Catalyst 4500 Series IOS Software Configuration Guide, and the Catalyst 4500 Series Switch Cisco IOS Command Reference.
Commonly used show commands are summarized in Chapter 4, "Monitoring".
To access a Cisco Catalyst switch using the Telnet window:
Step 1 Choose the switch using one of the following methods:
•Choose Telnet > device name from the menu bar (see Figure 3-22).
Figure 3-22 Telnet to Cisco Catalyst Switch
•Right-click on the Cisco Catalyst switch in the navigation tree and choose Telnet (see Figure 3-23).
Figure 3-23 Telnet to Device Using Right-Click
The Telnet window appears (see Figure 3-24).
Figure 3-24 Telnet Window
Step 2 Enter the Telnet password for the switch and press Enter (see Figure 3-25).
Figure 3-25 Logged on to the Switch
Step 3 Enter the required CLI commands.
Step 4 To terminate the Telnet session, type exit (see Figure 3-26), or choose File > Exit in the Telnet window menu bar.
Figure 3-26 Exiting Telnet Session
Step 5 To close the Telnet window, click the X in the upper right of the window.
Configuration Tasks
The following configuration tasks can be accomplished using Cisco QAM Gateway Manager. Instructions for each are provided in the subsections that follow.
• Loading a Configuration
• Configuring SNMP Parameters
• Saving a Configuration to a TFTP Server
• Configuring Gigabit Ethernet Input Ports into a VLAN
• Configuring Video Routing
• Setting Emulation Mode
• Setting the Output Frequency and Output Power of the QAM Channels
• Setting Up, Editing, and Routing a Video Stream to QAM Channels
• Setting Up PSI Parameters
• Configuring Program Data Delivery
Loading a Configuration
You can copy the Cisco Catalyst switch startup configuration to the running configuration, copy the running configuration to the startup configuration, or load a configuration file from a TFTP server to the running configuration or the startup configuration of the switch.
Copying the Startup Configuration to Running Configuration
To copy the switch startup configuration to the running configuration:
Step 1 Select the Cisco Catalyst switch in the navigation tree, and choose File > Load configuration
(see Figure 3-27).
Figure 3-27 Load Configuration
Step 2 In the Load Configuration dialog box, click the Startup configuration button (see Figure 3-28).
Figure 3-28 Startup Configuration Button
Step 3 Click OK to start the copy. A confirmation message appears.
Step 4 Click Yes to confirm and start the copy, or click No or Cancel to cancel the copy.
Copying the Running Configuration to Startup Configuration
To copy the switch running configuration to the startup configuration:
Step 1 Select the Cisco Catalyst switch in the navigation tree, and choose File > Load configuration (see Figure 3-29).
Figure 3-29 Load Configuration
Step 2 In the Load Configuration dialog box, click the Running configuration button (see Figure 3-30).
Figure 3-30 Running Configuration Button
Step 3 Click OK to start the copy. A confirmation message appears.
Step 4 Click Yes to confirm and start the copy, or click No or Cancel to cancel the copy.
Loading a Configuration from a TFTP Server
To load a startup configuration or a running configuration from a TFTP server to the Cisco Catalyst switch:
Step 1 Select the device and choose File > Load configuration (see Figure 3-31).
Figure 3-31 Load Configuration
Step 2 Click the TFTP server button (see Figure 3-32).
Figure 3-32 TFTP Server Button
Step 3 Enter the IP address and filename of the TFTP server.
Step 4 Choose the destination file (either Startup configuration or Running configuration) from the Destination file name pull-down menu.
Step 5 Click OK to start the load. A confirmation message appears.
Step 6 Click Yes to confirm and start the load, or click No or Cancel to cancel the load.
Note The switch must be reloaded for the startup configuration to take effect. Changes to the running configuration take effect immediately.
Configuring SNMP Parameters
Cisco QAM Gateway Manager uses Simple Network Management Protocol (SNMP) and a special management information base (MIB) to manage Cisco QAM Gateway devices. Two SNMP parameters, Polling Interval and SNMP Community String, can be set using Cisco QAM Gateway Manager as described in the following sections.
Setting SNMP Polling Interval
The polling interval determines how frequently Cisco QAM Gateway Manager requests status information from each of the managed devices.
To set the SNMP polling parameters for all devices:
Step 1 Select "Cisco QAM Gateway Manager" in the navigation tree, then set the polling parameters using one of the following methods:
•Choose File > Configure SNMP Parameters (see Figure 3-33).
Figure 3-33 Using File Menu
•Right-click on "Cisco QAM Gateway Manager" and choose Configure SNMP (see Figure 3-34).
Figure 3-34 Using Right Click
•Click the Configure button in the tool bar (see Figure 3-35).
Figure 3-35 Using the Tool Bar
Step 2 The default is 180 seconds. To change this value, enter a new polling interval from 180 to 3600 seconds (see Figure 3-36).
Figure 3-36 Polling Interval Configuration Dialog Box
Step 3 Click OK to save the configuration, or click Cancel to close the dialog box and discard any changes.
Setting the SNMP Community String
If the system administrator changes the community string on the Cisco Catalyst switch, use this function to set the new SNMP community string for that switch in Cisco QAM Gateway Manager.
To set the community string:
Step 1 Select a Cisco Catalyst switch in the navigation tree, then set the SNMP community string using one of the following methods:
•Choose File > Configure SNMP Parameters (see Figure 3-37).
Figure 3-37 Using File Menu
•In the navigation tree, right-click on the Cisco Catalyst switch and choose Configure SNMP (see Figure 3-38).
Figure 3-38 Using Right Click
•Select the Cisco Catalyst switch in the navigation tree and click Configure in the toolbar (see Figure 3-39).
Figure 3-39 Using Configure Button
Step 2 Enter the new SNMP community string and, if there has been a requirement change since first adding the device, select or deselect the Save all configurations to startup configuration? box (see Figure 3-40).
Figure 3-40 Configure SNMP Parameters Dialog Box
Step 3 Click OK to save the configuration, or click Cancel to close the dialog box and discard any changes.
Saving a Configuration to a TFTP Server
The startup configuration or the running configuration of a Cisco Catalyst switch can be saved to a TFTP server.
Saving the Startup Configuration to a TFTP Server
To save the startup configuration to a TFTP server:
Step 1 Do one of the following:
•Select the Cisco Catalyst switch on the navigation tree and choose File > Save configuration to TFTP server (see Figure 3-41).
Figure 3-41 Save Configuration to TFTP Server
•In the navigation tree, right click on the desired Cisco Catalyst switch in the navigation tree and choose Save configuration to TFTP server (see Figure 3-42).
Figure 3-42 Save Configuration to TFTP Server Using Right-Click
Step 2 Choose Startup configuration from the Source file type pull-down menu (see Figure 3-43).
Figure 3-43 Startup Configuration
Step 3 Enter the IP address and filename of the TFTP server.
Step 4 Click OK. A confirmation box appears.
Step 5 Click Yes to start the save process, or click No or Cancel to cancel the operation.
Saving the Running Configuration to a TFTP Server
To save the running configuration to a TFTP server:
Step 1 Do one of the following:
•Select the Cisco Catalyst switch on the navigation tree and choose File > Save configuration to TFTP server (see Figure 3-44).
Figure 3-44 Save Configuration to TFTP Server
•Right click on the Cisco Catalyst switch in the navigation tree and choose Save configuration to TFTP server (see Figure 3-45).
Figure 3-45 Save Configuration to TFTP Server Using Right-Click
Step 2 Choose Running configuration from the Source file type pull-down menu (see Figure 3-46).
Figure 3-46 Running Configuration
Step 3 Enter the TFTP server's IP address and filename.
Step 4 Click OK. A confirmation box appears.
Step 5 Click Yes to start the save process, or click No or Cancel to cancel the operation.
Configuring Gigabit Ethernet Input Ports into a VLAN
Video streams on inbound GE interfaces are included in single VLANs to use network addresses more efficiently. The IP addresses and subnet masks configured for each VLAN interface populate the IP switching table on the switch with the forwarding information needed to forward the video packets to their destination. The number and use of VLANs varies according to the programming and management needs of the system operator.
Note Though optional, the use of VLANs for dedicated video traffic is recommended. For a detailed discussion, refer to Configuring the Cisco uMG9850 QAM Module.
Do the following to create a VLAN interface, assign an IP address to the incoming (video source) interface, and assign input Gigabit Ethernet (GE) ports to the VLAN.
Note When it is necessary to create a new VLAN, use the Telnet window to create and enable the VLAN using commands found in Cisco Catalyst 4500 Series IOS Software Configuration Guide.
Modifying a VLAN's Address or Administrative Status
Step 1 Select a Cisco Catalyst switch in the navigation tree and choose Configure > Configure VLAN
(see Figure 3-47).
Figure 3-47 Configure VLAN Menu
The Configure VLAN dialog box appears (see Figure 3-48).
Figure 3-48 Configure VLAN Dialog Box
Step 2 Choose an existing VLAN from the pull-down menu. If necessary, enter a different IP address and subnet mask, or change the Administrative Status using the pull-down menu and choosing up to enable the VLAN or down to disable it.
Assigning the Input GE Port to a VLAN
To assign the input gigabit Ethernet (GE) port to a VLAN:
Step 1 Go to Ethernet Port View for a specific GE interface and assign the GE interface of the incoming video stream to be included in the VLAN.
Step 2 Set switchport status to switchport by clicking on the check box (see Figure 3-49). Choose no switchport by deselecting the switchport check box.
Note Switchport status must be set to switchport mode when LANs are used.
Figure 3-49 Selecting Switchport
Step 3 Select the VLAN from the VLAN pull-down menu (see Figure 3-50).
Figure 3-50 Selecting the VLAN
Step 4 Click Apply to save all changes and keep the window open, click OK to save the changes and close the window, or click Cancel to close the window and discard any changes.
Configuring Video Routing
This configuration task sets up the routing of UDP/IP (video) packets to the Cisco uMG9850. Acting as the IP host, the supervisor engine in the switch generally receives video traffic on the IP address configured on a VLAN. When the IP address of the selected VLAN is configured as the destination IP address of the video packets, any video packet destined for this IP address—and whose destination port number matches the UDP range specified for video—is routed to the selected Cisco uMG9850. For further discussion of this process, refer to Configuring the Cisco uMG9850 QAM Module.
Step 1 Go to the Video Routing section of Slot View (see Figure 3-51).
Figure 3-51 Configure Video Routing
Step 2 Select a VLAN and assign an IP address in the same subnet as that assigned to the VLAN in Step 1 in the Assigning the Input GE Port to a VLAN section.
Step 3 Specify a minimum and maximum UDP port range or accept the default range.
Note To remove the routing configuration for the module, click the Clear Video Route? selection box.
Step 4 Click Apply to save all changes and keep the window open, click OK to save the changes and close the window, or click Cancel to close the window and discard any changes.
Step 5 Repeat these steps for additional VLAN and GE interfaces, as required.
Setting Emulation Mode
You can configure the Cisco uMG9850 to emulate the UDP port mapping of third-party QAM gateways that accommodate fixed QAM-channel groups of 8 or 24 channels each. Up to three 8-channel gateways or one 24-channel gateway can be emulated. The user's mappings are converted to the scheme used by the Cisco uMG9850, and then are reconverted to the user's mapping scheme.
To set emulation mode:
Step 1 Go to Slot View, Emulation Mode Section (see Figure 3-52).
Figure 3-52 Emulation Mode Section
Step 2 Select the emulation mode from the pull-down menu (see Figure 3-53).
Figure 3-53 Selecting Emulation Mode
Values are:
•none—no emulation
•bitwise—for a third-party eight-channel QAM gateway that uses bitwise mapping
•8-qam-number—for a third-party 8-channel QAM gateway that uses bytewise mapping
•24-qam-number—for a third-party 24-channel QAM gateway that uses bytewise mapping
Step 3 Enter the number of IP addresses:
•Bitwise emulation mode supports up to three IP addresses.
•8-qam-number supports up to three IP addresses.
•24-qam-number supports only one IP address.
Step 4 Click Apply to save all changes and keep the window open, click OK to save the changes and close the window, or click Cancel to close the window and discard any changes.
Setting the Output Frequency and Output Power of the QAM Channels
Each F-connector (QAM port) provides two QAM channels, and the frequency and output power are configured for both channels simultaneously. Setting frequency and power for one QAM channel automatically sets the appropriate values for the other channel in the same interface.
The Frequency value configures the frequency for the upconverter connected to a QAM port. Configuring the frequency for one QAM channel automatically configures the correct frequency for the other QAM channel in its upconverter group. The frequency bandwidth of each QAM upconverter block is 12 MHz. Consequently, if slot/port.1 is set to frequency f1, then slot/port.2 is automatically set to frequency f1 + 6 MHz. Similarly, if slot/port.2 is set to frequency f2, then slot/port.1 is automatically set to frequency f2 - 6 MHz.
The power value configures the power level for the upconverter connected to a QAM channel. Configuring the output power for one QAM channel automatically configures the same power level for the other QAM channel in its upconverter group. If both QAM channels are up, RF power is configured to dBmV + 3 dBmV. If only one channel is up, RF power is configured to dBmV. If no channel is up, RF power is not configured.
Setting the Output Frequency
To set the output frequency of the QAM channel:
Step 1 Go to QAM Channel View, Channel Information section (see Figure 3-54).
Figure 3-54 Setting the QAM Channel Frequency and Output Power in QAM Channel View
Step 2 Enter the frequency for the selected channel. The frequency range for QAM channel 1 is 50000000 to 854000000 Hz, and for QAM channel 2 is 56000000 to 860000000.
Step 3 Click Apply to save all changes and keep the window open, click OK to save the changes and close the window, or click Cancel to close the window and discard any changes.
Note For further information regarding the setting of QAM channel frequency and power, refer to Configuring the Cisco uMG9850 QAM Module.
Setting the Output Power
To set the QAM channel output power:
Step 1 Go to QAM Channel View, Channel Information section (see Figure 3-54).
Step 2 Enter the QAM channel power. If both QAM channels in an RF port are enabled, the power range is 42 to 55 dBmV. If only one QAM channel is enabled, the allowed range is 45 to 58 dBmV. The default is 50 dBmV.
Step 3 Click Apply to save all changes and keep the window open, click OK to save the changes and close the window, or click Cancel to close the window and discard any changes.
Setting Up, Editing, and Routing a Video Stream to QAM Channels
Setting the Modulation Format
Each Cisco uMG9850 has six modulator groups, yielding a total of 24 channels per module. Setting the modulation format on one QAM channel applies the same format to all four QAM channels in a modulator group. For example, QAM channels 5/1.1, 5/1.2, 5/2.1, and 5/2.2.
To set the modulation format for the QAM channel:
Step 1 Go to QAM Channel View, Channel Information section (see Figure 3-54).
Step 2 Set the modulation format to either qam64 or qam256. The default is qam256.
Note If the FEC interleave level is set to 1, the value 256 is not valid. See the "Configuring the FEC Interleave Level and Mode" section that follows.
Step 3 Click Apply to save all changes and keep the window open, click OK to save the changes and close the window, or click Cancel to close the window and discard any changes.
Note If level 1 is already selected and it is necessary to change to qam256, first change the FEC Interleave level to 2, then click Apply and wait for the configuration change to take effect. Select qam256.
Configuring the FEC Interleave Level and Mode
The FEC interleave settings set the Reed-Solomon forward error correction (FEC) interleave level and mode on a QAM port. Forward error correction reduces bit error rate (BER) in data transmission by correcting recovered bit errors in the demodulator. Interleaving is a technique that reorders (in time) individual code-word bits with other code-word bits to spread error bursts over many different code words. The technique used is compliant with ITU J.83, Annex B.
Setting the interleave level and mode on any of the 12 QAM interfaces (ports) sets the QAM symbol rate on that port only. If the interleave level and mode is set on one QAM channel, the same value is applied to all four QAM channels in a modulator group.
Caution The default settings should be satisfactory. Varying the settings can result in an increase in packet latency. Always monitor new settings to ensure that resulting BERs are acceptable.
To configure the FEC interleave level and mode:
Step 1 Go to QAM Channel View, Interleave parameters section (see Figure 3-55).
Figure 3-55 Setting the FEC Interleave Level and Mode
Step 2 Choose the interleave level. FEC interleave level can be level1 or level2. The default is level2.
Note If the FEC interleave level is set to level1, the modulation format option of qam256 (256 QAM) is not valid. (See the "Setting the Modulation Format" section.)
Step 3 Select the value for FEC interleave mode. The default is 6-FEC-I-128-J-4.
Note The interleave mode can be set only when the interleave level is set to level2 (default).
Step 4 Click Apply to save all changes and keep the window open, click OK to save the changes and close the window, or click Cancel to close the window and discard any changes.
Statically Setting Session Timeouts
You can statically set a session timeout for a single Cisco uMG9850 QAM module or for the entire Cisco Catalyst switch to determine when the session is closed once packets no longer come into the session. You can also set the time following the absence of packets, at which a loss of signal is reported. Use global timeouts to address the entire switch or QAM gateway, and slot-level timeouts to address an entire module in a given slot. The options and parameters are the same in both cases.
Note When a session is closed, this means that the Cisco uMG9850 has not received any video packets for the given session's UDP port for the period determined by the module-level or switch-level session close timeout. The session no longer exists.
When a session is inactive, this means that the Cisco uMG9850 or has not received any video packets for the given session's User Datagram Protocol (UDP) port for the period determined by the global or slot-level timeout signal-loss. The session still exists, and is listed following a show command. If packets start arriving before the timer set by slot-level session-close timeout or global session-close timeout counts down, the session becomes active.
The value for slot-level timeout signal-loss or global timeout signal-loss should always be larger than the value configured for jitter. See Configuring Maximum Jitter for a Session.
To configure global timeouts:
Step 1 Go to Chassis View, Global Timers section. (See Figure 3-56.)
Figure 3-56 Setting Global Timers
Step 2 The default value for the Session Close Timeout timer is 10 minutes. To change the setting, enter a new value from 1 to 1440 minutes.
Step 3 The default value for the Signal Loss Timeout timer is 5000 milliseconds. To change the setting, enter a new value from 200 to 10000 milliseconds.
Step 4 Click Apply to save all changes and keep the window open, click OK to save the changes and close the window, or click Cancel to close the window and discard any changes.
To configure slot-level timeouts:
Step 1 Go to Slot View, Slot Level Timeouts section (see Figure 3-57).
Figure 3-57 Setting Slot-Level Timers
Step 2 The default for Session Close Timeout is 10 minutes. To change Session Close Timeout, enter a new value from 1 to 1440 minutes.
Step 3 The default for Signal Loss timeout is 5000 milliseconds. To change Signal Loss Timeout, enter a new value from 200 to 10000 milliseconds.
Step 4 Click Apply to save all changes and keep the window open, click OK to save the changes and close the window, or click Cancel to close the window and discard any changes.
Statically Routing a Range of Program Sessions to a QAM Channel (UDP Port Mapping)
The UDP port number of each program session allows each session to be routed to a designated QAM channel by default. You can overwrite the default routing (which is signaled by the port number) and route a range of program sessions to a QAM channel.
To route a range of program sessions to a QAM channel:
Step 1 Go to QAM Channel View, Video Sessions Mapping section (see Figure 3-58).
Figure 3-58 Statically Routing a Range of Program Sessions to a QAM Channel
Note Figure 3-58 displays the default values, indicating that the device is using default UDP port mapping. If you want to use default port mapping, do not change these values. If you want to create a static port map, proceed to Step 2.
Step 2 Enter the maximum number of sessions for this UDP port mapping. The range is 2 to 25. The default is 1.
Step 3 Enter the starting UDP port number to be mapped. The range is 256 to 65535. The default starting port number is 0.
Step 4 Enter the starting output program number to be mapped. The range is 1 to 255.
Step 5 To use only even UDP port numbers, reserving odd numbers for Real-Time Control Protocol (RTCP) for other purposes, set the value to true. The default is false.
Step 6 To clear video session mapping and revert to the session defaults, click the Clear Video Session Mapping check box.
Note This returns the device to default port mapping mode. See Configuring the Cisco uMG9850 QAM Module for additional information on default port mapping.
Step 7 Click Apply to save all changes and keep the window open, click OK to save the changes and close the window, or click Cancel to close the window and discard any changes.
Note Active video sessions must be stopped while the port map settings are changed. Stop the video sessions by temporarily disabling the VLAN bringing video into the switch. After port maps are changed, the VLAN can be enabled to allow active video streams.
Video session mapping cannot be changed if the Cisco uMG9850 is set to emulation mode.
Configuring Maximum Jitter for a Session
You can set the maximum allowable network jitter (packet latency variation) for a specified UDP port session. This global video setting affects the overall packet latency (at the buffer level) within an entire Cisco uMG9850.
Note The jitter option sets the size of a dejittering buffer that absorbs the input jitter. This buffer introduces system delay (the time for a packet to enter and leave the Cisco uMG9850). The greater the value of jitter, the greater the delay introduced to the output stream. You can change the size of the dejitter buffer at either the slot or the session level. Changing it at the slot level changes the default value for jitter. (Consequently, for all sessions having the default value for jitter, the jitter value is changed to the new value. For sessions that have nondefault jitter values, their current jitter value is maintained.)
To configure maximum jitter:
Step 1 Go to Slot View, Jitter section (see Figure 3-59).
Figure 3-59 Setting the Jitter Specification
Step 2 The default for jitter is 100 milliseconds. To change the jitter setting, enter a new value from 1 to 300 milliseconds.
Tip When setting the jitter value (the size of the dejitter buffer), take into consideration the network jitter (the inherent jitter introduced at the input of the Cisco uMG9850), and allow for clock tracking. Leave approximately 50 milliseconds for clock tracking. For example, if peak-to-peak network jitter is 100 milliseconds, set the jitter value to 150 milliseconds.
The value for global timeout signal loss or slot-level timeout signal loss should always be larger than the value configured for jitter.
Step 3 Click Apply to save all changes and keep the window open, click OK to save the changes and close the window, or click Cancel to close the window and discard any changes.
Setting Up PSI Parameters
You can set up various program-specific information (PSI) parameters, either globally (for the entire switch) or on an individual QAM channel.
Note If any sessions are active in the switch, new global Program Association Table (PAT) and Program Map Table (PMT) settings are rejected. Active sessions can be suspended while PAT and PMT variables are updated by disabling either the VLAN bringing video into the switch or the Ethernet port assigned to that VLAN.
Setting PMT and PAT Intervals for the Switch
The Program Association Table (PAT) interval sets the interval at which the PAT is distributed for all Cisco uMG9850 modules in the switch. Changing the default rate in this configuration mode overwrites the rate for the switch.
The Program Mapping Table (PMT) interval sets the interval at which the PMT is distributed to all Cisco uMG9850 modules in the switch. Changing the default rate in this configuration mode overwrites the rate for the switch.
To set PMT and PAT intervals for the switch:
Step 1 Go to Chassis View, Global Timers section (see Figure 3-60).
Figure 3-60 Setting PSI Parameters (Switch) in Chassis View
Step 2 The default for the PAT interval is 100 milliseconds. To change the setting, enter a value from 50 to 450 milliseconds.
Step 3 The default for the PMT interval is 100 milliseconds. To change the setting, enter a value from 50 to 450 milliseconds.
Step 4 Click Apply to save all changes and keep the window open, click OK to save the changes and close the window, or click Cancel to close the window and discard any changes.
Setting PMT and PAT Intervals for a QAM Channel
These parameters set the intervals at which an individual QAM channel distributes the PAT and PMT.
To set these parameters:
Step 1 Go to QAM Channel View, Timers section. (See Figure 3-61)
Figure 3-61 Setting PSI Parameters
Step 2 The default for the PAT interval is 100 milliseconds. To change the setting, enter a value from 50 to 450 milliseconds.
Step 3 The default for the PMT interval is 100 milliseconds. To change the setting, enter a value from 50 to 450 milliseconds.
Step 4 Click Apply to save all changes and keep the window open, click OK to save the changes and close the window, or click Cancel to close the window and discard any changes.
Setting TSID and NIT-PID Values
At each hub, each QAM channel must have a unique transport stream ID (TSID). The software checks for and guarantees the uniqueness of a TSID within a chassis only. These identifiers specify the TSID used to identify transport stream packets sent on the QAM channel and the packet ID (PID) used to identify Network Information Table (NIT) packets sent on a QAM port.
Caution It is the responsibility of the operator to avoid TSID conflicts among switches. To see all the TSIDs within a switch, look at the QAM Summary View.
The PID for the network information table, or NIT-PID, can be configured from the QAM interface. If the NIT-PID is already used as a video, audio, or data PID, the configuration is rejected.
For the transport stream that is to be transmitted over a QAM channel, you must configure the TSID and NIT-PID values for that channel.
To set these parameters:
Step 1 Go to QAM Channel View, Identifiers section (see Figure 3-62).
Figure 3-62 Setting TSID and NIT-PID Values (in QAM Channel View)
Step 2 Set the value of the Transport Stream ID for the QAM channel. The range is 1 to 65535. By default, nonconflicting TSIDs are assigned to all modules in a chassis.
Step 3 The default value for the NIT-PID is 16. To change the NIT-PID number, enter a new value from 16 to 8191.
Step 4 Click Apply to save all changes and keep the window open, click OK to save the changes and close the window, or click Cancel to close the window and discard any changes.
Configuring Program Data Delivery
The Program Data Delivery (PDD) support provided by the Cisco uMG9850 and QAM module makes possible the delivery of electronic program guide (EPG) data, other client data, and navigation data to a client application running on the set-top box (STB), enabling the subscriber to browse and select content for viewing. (PDD applies to both broadcast video and video on demand.) Program data can be delivered to the STB either in-band (on a shared QAM channel with digital video services) or out-of-band (on a DOCSIS or QPSK channel). When delivered in-band, the program data is typically delivered as private data in a low-bitrate MPEG program with multiple PIDS. Most cable systems deliver such data through one or more in-band carousels to which the client tunes at startup, as well as during program navigation, as needed.
Caution Keep in mind that the Cisco uMG9850 remaps the PIDs of incoming sessions to ensure uniqueness in the outgoing MPTS (except for pass-through sessions, where PID remapping is not necessary). When PIDs are remapped, any references to PID values in PDD streams become invalid.
Program-related information is streamed from a server, and can be delivered to subscribers in-band through the Cisco uMG9850. The data is encapsulated as SPTS MPEG-2 streams delivered by means of IP/UDP, as regular sessions are. However, program data, unlike a normal SPTS, can be delivered by means of multicast or unicast.
To maximize the efficiency of the IP network, a single copy of a program data stream is sent to a Cisco uMG9850 QAM channel, where the stream can be cloned to one, several, or all QAM channels. Also, the program data stream may contain program clock references (PCRs), or may be a pure data stream without timing information. To support PDD and similar functionality, the Cisco uMG9850 remaps the PID, either by using the default map or a user-specified configuration.
Caution You must disable any traffic being routed to the Cisco uMG9850 QAM module before creating or changing any cloned multicast or unicast sessions. You cannot make changes if sessions are active. For unicast traffic, temporarily disable the VLAN before making changes. For multicast traffic, temporarily disable the GE port before making changes.
For additional PDD information, refer to "Configuring Program Data Delivery (PDD) Features" in Configuring the Cisco uMG9850 QAM Module.
Cloning a Unicast UDP Session to One, Several, or All QAM Channels on a Module (PDD)
You can clone (map) a unicast input UDP session to one, several, or all QAM channels on a Cisco uMG9850 with a specified output-program number. Program numbers can vary.
Caution You must disable any traffic being routed to the Cisco uMG9850 QAM module before creating or changing any cloned unicast sessions. You cannot make changes if sessions are active. For unicast traffic, temporarily disable the VLAN before making changes.
Note To clone default UDP ports, you must use program 26 and above.
Step 1 Go to Slot View, All Session Information section.
Step 2 Click Create. The Create Session dialog box appears. (See Figure 3-63.)
Figure 3-63 Create Session Dialog Box
Step 3 Perform the following.
Cloning a Single Copy to a Specified QAM Channel
Caution You must disable any traffic being routed to the Cisco uMG9850 QAM module before creating or changing any cloned unicast sessions. You cannot make changes if sessions are active. For unicast traffic, temporarily disable the VLAN before making changes.
To clone a single copy of a PDD stream or unicast session to a specified QAM channel on a Cisco uMG9850, with a specified output-program number:
Step 1 Ensure that the Unicast button is selected.
Step 2 Select the QAM channel and select the Clone check box for that channel (see Figure 3-64).
Figure 3-64 Selecting the QAM Channel
Step 3 In the Create Clonable Session box (see Figure 3-65), enter the output program number. The range is
1 to 255.
Figure 3-65 Output Program Number
Step 4 In the Unicast box (see Figure 3-66), either select a UDP port number from the pull-down menu or enter a new UDP port number. The range is 49152 to 65535.
Figure 3-66 UDP Port Number
Step 5 If necessary, repeat steps 1 and 2 for each additional session and program to be mapped.
Step 6 Click Apply to save all changes and keep the window open, click OK to save the changes and close the window, or click Cancel to close the window and discard any changes.
Cloning a Single Copy to All 24 QAM Channels
Caution You must disable any traffic being routed to the Cisco uMG9850 QAM module before creating or changing any cloned unicast sessions. You cannot make changes if sessions are active. For unicast traffic, temporarily disable the VLAN before making changes.
To clone a single copy of a PDD stream or unicast session to all 24 QAM channels on a Cisco uMG9850 with a specified output program number, do the following:
Step 1 Ensure that the Unicast button is selected.
Step 2 Click the All QAMs check box.
Figure 3-67 All QAMs Check Box
Step 3 In the Create Clonable Session box (see Figure 3-65), enter the output program number. The range is
1 to 255.
Figure 3-68 Output Program Number
Step 4 In the Unicast box (see Figure 3-66), either select a UDP port number from the pull-down menu or enter a new UDP port number. The range is 49152 to 65535.
Figure 3-69 UDP Port Number
Step 5 Click Apply to save all changes and keep the window open, click OK to save the changes and close the window, or click Cancel to close the window and discard any changes.
Modifying or Deleting a Unicast Session
Caution You must disable any traffic being routed to the Cisco uMG9850 QAM module before creating or changing any cloned unicast sessions. You cannot make changes if sessions are active. For unicast traffic, temporarily disable the VLAN before making changes.
To modify a unicast session:
Step 1 Select the unicast entry you want to modify by selecting the UDP port number from the pull-down menu.
Step 2 Make any changes necessary. (To remove a QAM, deselect that QAM in the QAM list.)
Step 3 Click Apply.
To delete a unicast session:
Step 1 Deselect all the selected QAMs.
Step 2 Click Apply.
Cloning a PDD Stream or Multicast UDP Session to one, Several, or All QAM Channels on a Module
You can clone a PDD stream or multicast session to one, several, or all QAM channels on a Cisco uMG9850. It as assumed that the multicast source is on one VLAN, and the Cisco uMG9850 is on another VLAN.
Caution You must disable any traffic being routed to the Cisco uMG9850 QAM module before creating or changing any cloned multicast sessions. You cannot make changes if sessions are active. For multicast traffic, temporarily disable the GE port before making changes.
Do the following:
Step 1 Click Create in the All Sessions Information section of Slot View. The Create Clonable Session dialog appears (see Figure 3-63).
Step 2 Click the Multicast button (see Figure 3-70).
Figure 3-70 Create Clonable Session—Multicast
Step 3 In the Multicast box, select or enter the source IP address and multicast destination IP address (see Figure 3-71).
Note The range of multicast addresses is 224.0.0.0 to 239.255.255.255.
Figure 3-71 Source and Destination IP Address
Step 4 Select one or more output QAM channels (see Figure 3-64), or click All QAMs to select all QAM channels.
Step 5 Click Apply to save all changes and keep the window open, click OK to save the changes and close the window, or click Cancel to close the window and discard any changes.
Modifying or Deleting a Multicast Session
Caution You must disable any traffic being routed to the Cisco uMG9850 QAM module before creating or changing any cloned multicast sessions. You cannot make changes if sessions are active. For multicast traffic, temporarily disable the GE port before making changes.
To modify a multicast session
Step 1 Select the multicast entry you want to modify by selecting the source and destination IP addresses from the pull-down menu.
Step 2 Make any changes necessary. (To remove a QAM, deselect that QAM in the QAM list.)
Step 3 Click Apply.
To delete a multicast session:
Step 1 Deselect all the selected QAMs.
Step 2 Click Apply.
Setting MPTS Passthrough
Digital broadcast programs are typically delivered in a multiple program transport stream (MPTS) from a statistical multiplexer (or other video source) to the Cisco uMG9850. The Cisco uMG9850 passes the MPTS through to the set-top boxes without remultiplexing the video streams. The Cisco uMG9850 may update the PCR or TSID information in the MPTS as necessary to output a valid transport stream. The Cisco uMG9850 outputs the MPTS on one or more QAM channels based on the UDP port map (for unicast sessions) or multicast group address (for multicast sessions) of the incoming stream.
To enable MPTS passthrough on a selected Cisco uMG9850, click the Passthrough selection box (see Figure 3-72). This causes an MPTS multicast session to be passed through to the selected QAM channels. To disable MPTS passthrough, click the Passthrough selection box to remove the check mark, then click Apply.
Figure 3-72 Selecting MPTS Pass-Through
In the QAM to Clone section (see Figure 3-64), click to select the QAM channels to allow passthrough. To disallow passthrough, deselect the QAM channels, then click Apply.
Setting No-Snoop
Operators can inject externally generated service information (SI) packets onto an output QAM channel. When the Cisco uMG9850 is so configured, it does not snoop (no snoop) or modify any of the incoming packets. Rather, it simply takes each packet and inserts it into the outgoing channel along with the other VoD programs.
Note The No Snoop setting is not available for channels configured for MPTS pass-through.
To enable or disable No Snoop, click the No Snoop selection box (see Figure 3-73).
Figure 3-73 Selecting No Snoop
Emulation Mode
The Emulation Mode section (see Figure 3-74) is read-only and can be used for reference. To change these values, go to Slot View.
Figure 3-74 Emulation Mode (Read-Only)
