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C H A P T E R
3
Configuring the SCA BB Application to Support
VAS Traffic Forwarding
Revised: February 01, 2013, OL-26815-02
VAS Configuration in the SCA BB Application:
Traffic-Forwarding Tables
In the SCA BB application, you define a set of parameters that enable the application to relate a
particular traffic flow to a VAS service. Based on the combination of IP protocol and port number, traffic
flows are assigned to a VAS server group. You can create one or more VAS forwarding tables defining
the traffic forwarding schemes. Each forwarding table is then assigned to a package. Subscriber traffic
in a package is forwarded to the respective VAS server groups according to the assigned VAS forwarding
table.
There are four broad aspects to VAS traffic forwarding configuration in the SCA BB application:
•
Enabling VAS traffic forwarding in the SCA BB application.
•
(Optional) Assigning meaningful names to the server groups that were defined in the SCE platform.
•
Configuring the VAS forwarding tables to configure which traffic goes to which VAS server group.
If there are different traffic forwarding schemes for different groups of subscribers, create a traffic
forwarding table for each scheme.
•
Assigning the VAS forwarding tables to the relevant packages.
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Enabling VAS Traffic Forwarding
Enabling VAS Traffic Forwarding
By default, VAS traffic forwarding is disabled. You can enable it at any time.
Note
VAS traffic forwarding is not supported in asymmetric routing classification mode. If you try to enable
traffic forwarding when asymmetric routing classification mode is enabled, a VAS error message
appears.
To enable VAS traffic forwarding, complete the following steps:
Step 1
From the Service Configuration Editor, choose Configuration > Policies > VAS Settings.
The VAS Settings dialog box appears (Figure 3-1).
Figure 3-1
Step 2
VAS Settings
Click the Enable Traffic Forwarding radio button.
A VAS warning message appears.
Step 3
Click Yes.
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Renaming the VAS Server Groups
Renaming the VAS Server Groups
An SCE platform can forward flows to up to eight different VAS server groups. By default, the eight
server groups are named “Server Group n”, where n takes a value from 0 to 7. These values correspond
to the number you assigned to the server group when you created it using the SCE platform CLI.
For your own convenience, you can give the server groups meaningful names. The names you give
appear in the drop-down list in the Server Group field when creating traffic-forwarding tables (see
Managing VAS Table Parameters, page 3-6).
To rename the VAS server group, complete the following steps:
Step 1
From the Service Configuration Editor, choose Configuration > Policies > VAS Settings.
Step 2
In the table in the Server Groups Table area in the Traffic Forwarding Groups tab(see Figure 3-2),
double-click in a cell containing a server group name.
Step 3
Enter a meaningful name in the cell.
Step 4
Repeat Step 2 and Step 3 for other server groups you wish to rename.
Figure 3-2
Traffic Forwarding Groups Tab
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Managing the VAS Traffic-Forwarding Tables
Managing the VAS Traffic-Forwarding Tables
SCA BB decides whether a flow passing through an SCE platform should be forwarded to a VAS server
group based on a traffic-forwarding table. Each entry in a traffic-forwarding table defines which VAS
server group the specified flows should be forwarded to. Flows are defined by IP protocols and port
numbers.
Adding a VAS Traffic-Forwarding Table
A default traffic-forwarding table is included in the service configuration. You can add up to 63 more
traffic-forwarding tables, and then assign different traffic-forwarding tables to different packages.
To add a VAS traffic-forwarding table, complete the following steps:
Step 1
From the Service Configuration Editor, choose Configuration > Policies > VAS Settings.
The VAS Settings dialog box appears.
Step 2
Click the Traffic Forwarding Tables tab.
The Traffic Forwarding Tables tab opens.
Step 3
In the Traffic Forwarding Tables area, click the Add
icon.
A new table named Table (n), where n is a value from 1 through 63, is added to the list of
traffic-forwarding tables.
The table name is also displayed in the Item Name box in the Table Parameters tab.
Step 4
In the Item Name field, enter a unique and relevant name for the traffic-forwarding table.
You can now add table parameters to the new traffic-forwarding table (“Adding VAS Table Parameters”
section on page 3-6).
Step 5
Click Close to save the changes and close the dialog box.
Viewing VAS Traffic-Forwarding Tables
To view VAS traffic-forwarding table, complete the following steps:
Step 1
From the Service Configuration Editor, choose Configuration > Policies > VAS Settings.
The VAS Settings dialog box appears.
Step 2
Click the Traffic Forwarding Tables tab.
The Traffic Forwarding Tables tab opens, displaying a list of all traffic-forwarding tables in the left pane.
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Managing the VAS Traffic-Forwarding Tables
Step 3
Click a table in the list to display the table parameters.
A list of all table parameters defined for this traffic-forwarding table opens in the Table Parameters tab
(Figure 3-3).
Figure 3-3
Traffic Forwarding Tables Tab
Deleting VAS Traffic-Forwarding Tables
You can delete all user-created traffic-forwarding tables. The default traffic-forwarding table cannot be
deleted.
Note
A traffic-forwarding table cannot be deleted while it is associated with a package.
To delete VAS traffic-forwarding tables, complete the following steps:
Step 1
From the Service Configuration Editor, choose Configuration > Policies > VAS Settings.
The VAS Settings dialog box appears.
Step 2
Click the Traffic Forwarding Tables tab.
Step 3
From the list of traffic-forwarding tables in the Traffic Forwarding Tables area, select a table.
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Managing the VAS Traffic-Forwarding Tables
Step 4
Click the delete
icon.
A VAS Warning message appears (Figure 3-4).
Figure 3-4
Step 5
VAS Warning
Click Yes.
Managing VAS Table Parameters
A table parameter is an entry in the VAS table. It consists of three parts:
•
IP protocol type
•
Associated TCP/UDP port or range of ports (where applicable)
•
VAS server group or a range of IP addresses
A traffic-forwarding table can contain up to 64 table parameters.
•
Adding VAS Table Parameters, page 3-6
•
Editing VAS Table Parameters, page 3-7
•
Deleting VAS Table Parameters, page 3-9
Adding VAS Table Parameters
You can add up to 64 table parameters to a traffic-forwarding table.
To add VAS table parameters, complete the following steps:
Step 1
From the Service Configuration Editor, choose Configuration > Policies > VAS Settings.
The VAS Settings dialog box appears.
Step 2
Click the Traffic Forwarding Tables tab.
Step 3
From the list of traffic-forwarding tables in the Traffic Forwarding Tables area, select a table.
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Managing the VAS Traffic-Forwarding Tables
Step 4
In the Traffic Parameters tab, click the add
icon.
A new table parameter is added to the list of table parameters in the Table Parameters tab.
Note
Each new table parameter has the default values as listed in Table 3-1.
Table 3-1
Table Parameter Default Values
Parameter
Default value
IP Protocol
TCP Port
Server Group
Server Group 0
TCP/UDP Port
80
You can now edit the new table parameter, as described in the following section.
Editing VAS Table Parameters
To edit VAS table parameters, complete the following steps:
Step 1
From the Service Configuration Editor, choose Configuration > Policies > VAS Settings.
The VAS Settings dialog box appears.
Step 2
Click the Traffic Forwarding Tables tab.
Step 3
From the list of traffic-forwarding tables in the Traffic Forwarding Tables area, select a table.
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Managing the VAS Traffic-Forwarding Tables
Step 4
In the table in the Table Parameters tab, select a protocol, port, and server group.
a.
Click in a cell in the IP Protocol column, and, from the drop-down list that opens, select an IP
protocol type (Figure 3-5).
Figure 3-5
Table Parameters Tab
If you select All, All TCP, All UDP, or All Non TCP/UDP, “N/A” appears in the TCP/UDP Port cell
when you move to another cell in the table.
b.
If you select TCP Port or UDP Port, double-click in the cell in the TCP/UDP Port column, and enter
the port number or a range of ports in the format port1-port2.
c.
Click in the cell in the Server Group column, and, from the drop-down list that opens, select a server
group (Figure 3-6).
Figure 3-6
Step 5
Tables Parameters Tab
Click Close to save the changes and close the dialog box.
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Managing the VAS Traffic-Forwarding Tables
Deleting VAS Table Parameters
To delete VAS table parameters, complete the following steps:
Step 1
From the Service Configuration Editor, choose Configuration > Policies > VAS Settings.
The VAS Settings dialog box appears.
Step 2
Click the Traffic Forwarding Tables tab.
Step 3
From the list of traffic-forwarding tables in the Traffic Forwarding Tables area, select a table.
Step 4
From the list of table parameters in the Table Parameters tab, select a table parameter.
Step 5
Click the delete
icon.
The selected table parameter is deleted and is no longer displayed in the list of table parameters.
Step 6
Click Close to save the changes and close the dialog box.
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Assigning a VAS Forwarding Table to a Package
Assigning a VAS Forwarding Table to a Package
Traffic is forwarded to the appropriate VAS server group based on the package assigned to the subscriber.
A traffic-forwarding table defining the desired traffic forwarding scheme is assigned to the package. The
SCE platform then forwards all traffic for that package to the server groups according to protocol and
port as defined in the assigned traffic forwarding table.
To assign a VAS forwarding table to a package, complete the following steps:
Step 1
In the Policies tab of the Service Configuration Editor, right-click the desired package name and select
Edit Package.
The Package Settings dialog box for the selected package appears.
Step 2
Click the Advanced tab.
Step 3
At the bottom of the tab, in the VAS Traffic Forwarding Table area, select the desired traffic forwarding
table from the drop-down list.
Figure 3-7
Edit Package Advanced Tab
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