The EMS uses the EMS CALEA user role for all LI configuration operations from and to the SBC Configurator, and the configuration operations and the admin user role for communicating over netconf to the SBC. The EMS creates the SBC CALEA user credentials automatically when a SBC (including the SBC Configurator) an SBC registers to itthe EMS. Cloud SBC instances are registered dynamically in the EMS.
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A single CDC configuration is supported per cluster. |
To configure configure the Call Data Channel (CDC) for a cloud M-SBC instance:
To create basic configuration for M-SBC:
Log on to EMS as admin
user. Under Network Mgmnt, click Cluster / VNF Management. The Cluster/VNF Management window is displayed.
Create M-SBC cluster. For more information, refer to Creating an SBC SWe Cluster.
Click Configurations tab.
Click New Configuration. The New Configuration pane is displayed.
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1 | New Configuration |
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Click Master Configurator tab.Select the version of the configuration from the Version drop-down.
Select an SBC Configurator instance from the Master Configurator drop-down.
This node is used to create the configuration. The SBC Configurator nodes are displayed based on the version selected. Only unlocked SBC Configurator nodes are listed.
Enter a name for the configuration in the Configuration Name field. The SBC configuration name can contain only letters, numbers, dashes (-), apostrophes ('), underscores (_), colons (:) and spaces.
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The cluster ID is set as the default name for the first configuration. You can modify the name. The name must be unique. The subsequent configurations are named with a combination of cluster name and some unique identifying information. The default name varies based on how the configuration is created. |
Click Create. A circular progress bar is displayed against the Master Configurator node. It takes around six minutes to load master configuration.
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1 | Configurator Loading |
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When the Master Configurator node is loaded, the Open Editor button is displayed next to the Master Configurator node. Caption |
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Click Open Editor. The SBC Configuration Manager window is displayed.
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1 | SBC Configuration Manager |
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Create the basic M-SBC configuration on the SBC configurator. For information on M-SBC configuration, refer to Configuring M-SBC.Click Apply Saved Changes and Close. A circular progress bar is displayed.
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1 | Saving Configuration |
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The configuration is saved on EMS SWe and the following window is displayed:
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1 | Locked Configurator |
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Create CDC configuration (Proceed to Configuring CDC using EMS CALEA User Account) Anchor |
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| Configuring CDC using EMS CALEA User Account |
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| Configuring CDC using EMS CALEA User Account |
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Configuring CDC using the EMS CALEA User AccountFor LI, the CDC configuration is performed using the CDC Configuration Manager through EMS. You You can Create create CDC information only as EMS calea
when logged in as the EMS CALEA user from the EMS CDC configuration window.
Prerequisites
Enable calea
user. For information, refer to Enabling Lawful Intercept on EMS Standalone.
Procedure
To configure a cluster CDC for cloud M-SBC nodes:
- Log into the EMS as an admin user.
- Launch the SBC Configuration Manager for the Head End SBC. Refer to Configuring an SBC SWe Cluster using the EMS for more information.
- Launch another EMS session as the CALEA userLog on to EMS as
calea
user. - Under Network Mgmnt, click Lawful Intercept. The Lawful The Lawful Intercept CDC Provisioning Provisioning window is displayed.
Click the Cluster CDC tab. The Cluster CDC pane is displayed.
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The following parameters are displayed: Caption |
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1 | Cluster Configuration Parameters |
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Locked Configuration | Specifies the configuration name. | Configuration Role | Specifies the type of the configuration role. The roles are Default and Alternate. | Cluster | Specifies the name of the cluster. | Master Configurator | Specifies the name of the locked master configurator instance. |
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- Select the M-SBC cluster with locked configurator node.
Click Launch CDC Configuration Manager. The SBC Configuration Manager window is displayed.
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1 | Launch CDC Configuration Manager |
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Create Call Data Channel for a call data channel for the M-SBC (Proceed to Creating Call Data Channel for M-SBC).
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| Creating Call Data Channel for M-SBC |
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| Creating Call Data Channel for M-SBC |
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Creating a Call Data Channel for the M-SBCThe SBC SWe provides the ability to configure the IP address, TCP port, and other parameters used for communication towards the mediation server.
To create a new Call Data Channelcall data channel:
In the SBC Configuration Manager window, navigate to Configuration > Intercept > Call Data Channel. The Call Data Channel window is displayed.
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1 | Call Data Channel Window |
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Select default from Address the Address Context drop-down menu. You can configure LI using the default Address Context only.
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1 | Call Data Channel for M-SBC |
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Click New Call Data Channel. The Create New Call Data Channel window is displayed.
noteYou can configure the LI using the default Address Context only. |
Specify the following values:Name: Type the name of the call data channel.
Intercept Standard: Select packetcable from the drop-down menu.
Vendor ID: Select ss8 from the drop-down menu.
- RTCP Interception: Select Enabled.
Media IP Interface GroupGroup Name: Select the name of the media IP interface group name you want to use from the drop-down menu.
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1 | Creating New Call Data Channel |
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1 | Creating New Call Data Channel Parameters |
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Parameter | Description |
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Name | Specifies the name of the CDC configuration object. | Intercept Standard | Specifies the intercept standard usedto use. | Vendor Id | Specifies the vendor of the LI server used. | RTCP Interception | Specifies whether to intercept RTCP data. The values are:
- Disabled (default)
- Enabled
| Media IP interface Group Name | Select a Media IP interface Group Name. |
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Click Save. The object is created successfully.
Click OK.
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1 | Call Data Channel List |
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- Click Save at the top of the SBC Configuration Manager window when you have completed making configuration changes. When prompted, confirm that you want to save all your changes and push the configuration to all nodes in the cluster.
- Return to the EMS session containing the SBC Configuration Manager for the Head End SBC and click Save and ActivateConfigure mediation server (Proceed to Creating Mediation Server).
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| Creating Mediation Server |
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| Creating Mediation Server |
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Creating Mediation ServerAfter the Call Data Channel call data channel is created, you must create Mediation Server mediation server objects associated with the Call Data Channelcall data channel. The CDC configuration supports configuring up to eight Memediation Serversservers.
To create a mediation server object:
Navigate to Configuration > Intercept > Call Data Channel > Mediation Server. The Mediation Server window is displayed.
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Select default from the Address Context drop-down menu.
Select the Call Data Channel you created for the M-SBC from the drop-down menu. Caption |
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1 | New Mediation Server |
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Image RemovedClick New Mediation Server. The Create New Mediation Server window is displayed.
Type the a mediation server name in Msname.
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1 | Creating New Mediation Server |
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Click Save. The Object object is created successfully. Click OK. The Mediation Server List window is displayed. You can repeat the steps to create up to eight mediation servers for the M-SBC.
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1 | Mediation Server List |
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Configure TCP (Proceed to Mediation Server - Media - TCP).
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| Mediation Server - Media - TCP |
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| Mediation Server - Media - TCP |
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Mediation Server - Media - TCPThis screen includes the LI Mediation Server TCP Media intercept parameters.
To view TCP parameters:
Navigate to Configuration > Intercept > Call Data Channel > Mediation Server > Media > TCP. The TCP window is displayed.
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Select default from the Address Context drop-down menu.
Select the Call Data Channel from the drop down menu.
Select the MediationServer from the drop-down menu. The configuration for the selected server opens.
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1 | Editing TCP - Out of Service |
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Use the following table to configure the server parameters.
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The mediation server parameters can only be updated when its State is Disabled and Mode is Out Of Service. |
Select the Call Data Channel from the drop down menu
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Parameter | Description |
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IP Address V4 or V6 | IPV4/IPV6 address of the mediation server for media interception over TCP. | Port Number | Specifies the port number of the mediation server for media interception over TCP. Range is 0 - 65535. | DSCP Value | Specifies the DSCP value for intercepted media packets sent on TCP port. Default value is 16 and range is 0 - 63. | Mode | Specifies the mode of the TCP connection towards the mediation server for media interception. The Options options are: - In Service
- Out of service (default)
| State | Specifies the state of the TCP connection towards the mediation server for media interception. The Options options are: - Disabled (default)
- Enabled
| KA Time | Specifies the duration between two keep alive transmissions while in idle condition. The default value is 180.
| KA Interval | Specifies the duration between two successive keep alive re-transmissions, if acknowledgement to the previous keep alive transmission is not received. The default value is 30.
| KA Probe | Specifies the number of re-transmissions to be carried out before declaring that the remote end is not available. The default value is 4. |
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Select default from the Address Context drop-down menu.
Select the Mediation Server from the drop-down menu.
Configure the required details.
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The configurations can only be updated with State as Disabled and Mode as Out Of Service. |
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1 | Editing TCP - Out of Service |
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Click Save. The object is Updated Successfully.- Click OK.
- Enable the mediation server by changing the State as Enabled and Mode as In Service.
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1 | Editing TCP - In Service |
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Image Removedby changing its State to Enabled and Mode to In Service. - Click Save to save the configuration.
Click Apply Saved Changes and Close.
Activate the CDC configuration (Proceed to Activating CDC Configuration for M-SBC).
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Activating CDC Configuration for M-SBC | Activating CDC Configuration for M-SBC | Activating CDC Configuration for M-SBCClick Save at the top of the SBC Configuration Manager window when you have completed making configuration changes. When prompted, confirm that you want to save all your changes and push the configuration to all nodes in the cluster.
To activate a cluster configuration for SBC SWe:
- Log on to EMS as
admin
user. - Under Network Mgmnt, click Cluster / VNF Management. The Cluster/VNF Management window is displayed.
Select the M-SBC cluster for which the CDC configuration is created.
Click Configuration tab. The Configuration pane is displayed.
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1 | Configuration Pane |
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3 | Configuration Pane |
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- In Configuration Role column, select the configuration role to activate.
Click Activate Configuration. The Activation in progress status is displayed. When the activation is completed, the nodes in the cluster are updated with the active configuration, the Configuration Status is displayed as Last update complete.
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1 | Activation Completed |
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- Instantiate M-SBC. For more information, refer to Instantiating M-SBC using N:1 Nested Heat Template.
- After activating the default configuration and an update to the active configuration occurs, you must activate the candidate configuration using the steps on the page Partial Configuration.
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| Viewing Statistics for M-SBC |
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| Viewing Statistics for M-SBC |
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Viewing Statistics for M-SBC
This object displays the To view mediation server media statistics.To view the LI statistics:
- Logon to Log onto the EMS as CALEA the CALEA user.
- Under Network Mgmnt, click Lawful Intercept. The Lawful The Lawful Intercept CDC Provisioning Provisioning window is displayed.
Click Cluster CDC tab. The Cluster CDC pane is displayed.
- Select the M-SBC cluster.
Click View Nodes. The nodes list in the cluster is displayed.
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Select the required node to view the mediation server media status .Click and click Launch Node LI Stats. The Mediation The Mediation Server Media Status window Status window is displayed.
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1 | Mediation Server Media Status |
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