To configure a subscriber interface on a VPRN

Prerequisites

The 7450 ESS in mixed mode, 7750 SR supports the configuration of a subscriber interface in a VPRN.

Steps
 

Choose Manage→Service→Services from the NFM-P main menu. The Manage Services form opens.


Choose a VPRN and click Properties. The VPRN Service (Edit) form opens.


On the service navigation tree, expand Sites→Routing Instance, right-click on Subscriber Interfaces and choose Create VPRN Subscriber Interface, or expand Subscriber Interfaces, right-click on a subscriber interface and choose Properties. The VPRN Subscriber Interface (Create|Edit) form opens.


Configure the required general parameters.

The Tunnel Fault Notification parameter is configurable on interfaces where the device has ports configured in access or hybrid mode with QinQ encapsulation.

If you are configuring a tunnel facility MEP, Tunnel Fault Notification must be set to Accept, in order to receive the fault notification from the tunnel facility MEP.

The Name value for a subscriber interface must be unique in the context on the VPRN Service Site. That is, there cannot be another L3 access interface, subscriber interface, or group interface with the same name on the same VPRN site.

You must configure the Default Primary DNS Server Address parameter before you can configure the Default Secondary DNS Server Address parameter.

The WAN Mode parameter is configurable only on subscriber interface creation. The parameter is read-only on existing interfaces. The WAN Mode parameter is validated on retail/wholesale subscriber interfaces, in which case the parameter value should be equal across interfaces.


Configure the required parameters in the Interface Class panel.

If you selected a value of Unnumbered for the Class parameter, configure the Unnumbered Type parameter, and configure the Interface Name parameter or the IP Address parameter.


Configure the required parameters in the DHCP Server Synchronization panel.


In the WLAN GW panel, set the Redundancy/Pool Manager parameter to Enabled if you need to configure WLAN GW redundancy or an IPv6 pool manager. The WLAN GW Redundancy and WLAN GW IPv6 Pool Manager tabs appear.


Click on the WLAN GW Redundancy tab to configure WLAN GW redundancy.


Click on the WLAN GW IPv6 Pool Manager tab to configure DHCPv6 functionality for the subscriber interface.

In order to support WLAN GW IPv6 address pools, the subscriber interface must have the IPv6 and WLAN Redundancy/Pool Manager parameters enabled on the General configuration tab, and must be configured with a soft GRE group interface.

  1. Select a WLAN GW group.

  2. Configure the required parameters.

    The DHCPv6 Lease Query parameter must be enabled before the DHCPv6 Lease Query Max Retry parameter can be configured.

    The SLAAC and IA-NA Administrative State parameters must be set to Out Of Service before their related parameters can be configured.


10 

To configure IPv6 forwarding on the subscriber interface:

  1. Enable the IPv6 Allowed parameter.

  2. Configure the IPv6 parameters.

    You must remove the check mark from the Default check box to access the Default Primary IPv6 DNS Server Address and Default Secondary IPv6 DNS Server Address parameters.

  3. Click on the IPv6 Subscriber Prefixes tab.

  4. Choose a subscriber prefix and click Properties, or click Create to create a new subscriber prefix. The Subscriber Prefix (Edit|Create) form opens.

  5. Configure the parameters.

  6. Save the changes and close the form.


11 

To create a subscriber interface for a wholesale and retail VPRN:

Note: When you configure the routing instance for the VPRN, you can set the Type parameter to Subscriber Split Horizon to enable the forwarding service and forwarding subscriber information. The subscriber split horizon VPRN controls the flow of traffic for wholesale subscriber applications. See To create a VPRN service for more information on how to configure this parameter.

You cannot create a group interface under a forwarding subscriber interface.

  1. Select a forwarding service to assign to the subscriber interface in the Forwarding Service panel.

  2. Configure the Private Retail Subnets parameter.

  3. Select a forwarding subscriber interface in the Forwarding Subscriber Interface panel.

  4. Configure the Export Host Routes parameter, if required.

    The Export Host Routes parameter is only available on retail subscriber interfaces when the Allow Unmatched Subnets parameter is enabled, or when the Interface Class parameter is set to Unnumbered.


12 

To create one or more IP addresses for the subscriber interface that are inherited by the SAPs in the group interfaces that are child objects of the subscriber interface:

  1. Click on the Addresses tab.

  2. Click Create. The IP Address (Create) form opens.

  3. Configure the required parameters.

  4. Save the changes and close the form.


13 

To configure IPv4 DHCP for the interface:

  1. Click on the DHCP tab.

  2. If you specified a forwarding service in Step 11 , the General tab is configurable. Configure the parameters that define the forwarding service information. Otherwise go to 4 .

  3. If you specified a forwarding service in Step 11 and depending on the type and release of the device that you are configuring, the Subscriber Authentication Policy panel is present. Select a Subscriber Authentication policy. Otherwise, go to 4 .

  4. Configure the required parameters.

  5. Click on the Server tab and configure the required parameters.

    The Number of Days, Number of Hours, Number of Minutes, Number of Seconds, and Lease Time Override parameters are configurable only when the Lease Time parameter is set to Specified Time Period.

  6. Click on the Client Applications tab and configure the Client Applications parameter. You can enable either or both of the PPPoE or DHCP choices.


14 

To configure PPPoE for the interface:

Note: PPPoE is only configurable on a VPRN subscriber interface if the interface is a retailer interface.

  1. Click on the PPPoE tab.

  2. Configure the required parameters.


15 

If the subscriber interface is part of a wholesale/retail configuration, click on the IPoE Linking tab and configure the required parameters.

The IPoE Linking tab is only configurable if a forwarding service is specified for the subscriber interface (see Step 11 ).


16 

To configure the ARP host for the interface:

Note: The ARP host is only configurable on a VPRN subscriber interface when the interface is a retailer interface.

  1. Click on the ARP Host Configuration tab.

  2. Configure the required parameters.


17 

Save the changes and close the forms.

End of steps