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    Creating a Hub-and-Spoke (One Interface) Layer 3 VPN Service Definition

    You can create a one-interface hub-and-spoke BGP/static or OSPF/static Layer 3 VPN service definition, for this version of the Connectivity Services Director application, using predefined service definitions located in Service Design > Manage Service Definitions > New > L3 VPN Service Definitions. In a one-interface hub-and-spoke topology, there is only one interface using a combination of static routes, BGP, and OSPF routes between CE hub and PE hub routers. Use a one-interface hub-and-spoke Layer 3 VPN service definition to configure a service to advertise a default route from a hub to the spokes.

    For more information about predefined one-interface hub-and-spoke BGP/static or OSPF/static Layer 3 VPN service definitions, see Predefined Hub-and Spoke Layer 3 VPN Service Definitions. You can, however create a customized service definition—for example, to set different bandwidth limits on the service than those offered in the standard service definitions.

    You must have a Service Designer user role to create Layer 3 VPN hub-and-spoke service definitions. When you create and publish a new service definition, network operators or service provisioners with a Service Activator role can use the completed service definition as a base for creating and then activating hub-and-spoke Ethernet services on the network.

    You can create a service definition, using the Create L3 VPN Service Definition General and Site Settings pages of the wizard in any order by clicking the task buttons at the top of the Create L3 VPN Service Definition windows.

    1. Specifying General Information

    2. Specifying UNI or Site Settings

    3. Reviewing the Configured Settings

    Specifying General Information

    To specify general information for a hub-and-spoke service definition:

    1. Fill in the fields on the General page as indicated in the table.

      Field

      Action

      Service Definition Name

      Type a unique name that identifies the hub-and-spoke Layer 3 VPN definition.

      Range: 3 through 50 characters.

      Service Type

      Select L3 VPN (Hub-Spoke 1 Interface).

      Description (Optional)

      Type a comment that identifies or describes the definition.

      Range: 1 through 200 characters.

      Decouple Service Status From Port Status

      Select this check box to isolate the events related to an interface in the OpenNMS.

      Note: When you select this check box, only the MPLS traps are monitored, and not the interface-related traps (such as jnxVpnIfUp or jnxVpnIfDown).

      By default, all the events are saved in the OpenNMS database.

      Connectivity Settings

      Auto-pick Route Target

      Select a route target option:

      • Deselect the check box to allow the service provider to specify the route target.

      • Select the check box to enable the route target to be selected automatically.

      To override this setting in the service order, you can select the Editable in Service Order check box.

      Auto-pick Route Distinguisher

      Select a route distinguisher option:

      • Deselect the check box to enable the service provider to specify the route distinguisher.

      • Select the check box to enable the route distinguisher to be selected automatically.

      To override this setting in the service order, you can select the Editable in Service Order check box.

      VRF Table Label

      Select this check box to configure a separate label for each VRF to provide double lookup and egress filtering.

      To override this setting in the service order, you can select the Editable in Service Order check box.

      Export Direct Routes

      Select this check box to export direct routes.

      Enable MVPN

      Select this check box to enable MVPN settings in L3VPN service orders to be based on this service definition.

      Service Template

      (Optional) To include a service template for the service, click the Add icon or plus sign (+) to select a service template from the Service Template list. The list of available service templates is displayed. Select the check box beside the template you want and click OK. You are returned to the General Settings page.

      The selected service template appears in the Default Service Template field.

      You can select one or more service templates as the default service template. By default, the default service templates are attached to the endpoints.

      Note: You cannot add or delete a service template while creating a service order.

      The remaining service templates on the Service Template list are termed as optional service templates. You can attach the optional service templates to the endpoints on a need basis.

      In the View Service Definition Details window, the value for the default service template in the Default Service Template column is True.

      For instructions on creating a service template, see Creating a Service Template.

      Note: To provision a Layer 3 VPN service for QinQ UNI type, you can create a service template with service variables as interface name and unit name.

    2. Click Next to save the General information.

      The Site Settings-Create L3 VPN Service Definition page appears.

    Specifying UNI or Site Settings

    To specify UNI interface settings for the service definition:

    1. Fill in the fields on the Site Settings page as indicated in the table as indicated in the table.

      Field

      Action

      PE-CE UNI Settings

      MTU Settings

      Interface MTU (Bytes)

      You can specify an MTU value in this field. The default value for MTU is 1522 bytes.

      To see the permitted range for the MTU value, select the Editable in Service Order check box. The MTU range is 1522 through 9192.

      MTU Range (Bytes)

      If you select the check box Editable in Service Order, you can specify a value range for MTU (in bytes). The permitted range for MTU is 1522 through 9192.

      Note: Ultimately, the system establishes the MTU by multiplying the value you specify in the Default MTU (Bytes) field by the value you specify for MTU Factor.

      Bandwidth Settings

      Enable QoS

      When you enable QoS in the service definition, you must specify a QoS profile in the service order to classify traffic into defined service groups to provide the special treatment of traffic across the network service. For example, voice traffic can be sent across certain links, and data traffic can use other links.

      If you enable the inclusion of QoS profile settings for the service in the service template or service definition, the list of CoS profiles that you defined using the Manage CoS Profiles page (by selecting CoS under Profile and Configuration Management in the Tasks pane) are displayed. Select the CoS profile you want to associate with the service from the drop-down list.

      Enable rate limiting (check box)

      Select the check box to enable rate-limiting of trafic. Clear the check box to disable rate-limiting.

      Default bandwidth (Mbps)

      Specify the default bandwidth value, in Mbps.

      Default: 10 Mbps

      Range: 1 Mbps through 100,000 Mbps

      Min Bandwidth (Kbps)

      To override the default bandwidth value, select the Editable in Service Order check box.

      Specify the minimum bandwidth value in Kbps:

      Default: 1000 Kbps

      Range: 64 Kbps through 100,000 Kbps

      Max Bandwidth (Mbps)

      Specify the maximum bandwidth value, in Mbps.

      Default: 100 Mbps

      Range: 1 Mbps through 100,000 Mbps

      The following table lists the Max Bandwidth (Mbps) for the M Series, MX Series, and ACX Series Routers:

      Table 1: Maximum Bandwidth for M Series, MX Series, and ACX Series Routers

      M Series IQ2E PIC

      M Series IQ2 PIC

      MX Series 3D PIC

      MX Series Non-3D PIC

      ACX 2000

      GE Port (1G)

      XE Port (10G)

      GE Port (1G)

      XE Port (10G)

      GE Port (1G)

      XE Port (10G)

      GE Port (1G)

      XE Port (10G)

      GE Port (1G)

      XE Port (10G)

      32,000 Mbps or 32 Gbps

      32,000 Mbps or 32 Gbps

      50,000 Kbps or 50 Gbps

      50,000 Kbps or 50 Gbps

      100,000 Mbps or 100 Gbps

      100,000 Mbps or 100 Gbps

      50,000 Kbps or 50 Gbps

      50,000 Kbps or 50 Gbps

      50,000 Kbps or 50 Gbps

      50,000 Kbps or 50 Gbps

      Increment (Kbps)

      Specify a value in the range that is made available to the service provisioner.

      PE-CE Interface Encapsulation Settings

      Auto-pick VLAN ID

      Specify how the VLAN ID is determined:

      • To allow the service provider to specify the VLAN ID, clear the check box. Specify the range in VLAN range for manual input.

      • To cause the VLAN ID to be selected automatically from the VLAN ID pool, select Auto-pick VLAN ID check box. This option is used typically when VLAN normalization is applied. Specify the range in VLAN range for auto-pick

      Note: Select the Editable in Service Order check box, if you want to override VLAN ID selection setting in the service order.

      Note: When the range of VLAN IDs that are automatically assigned by the system (with the auto-pick option enabled during the creation of a service definition) is less than or greater than the range of VLAN IDs that are manually specified (with the manual selection option enabled during the creation of a service definition), the following conditions apply during the creation of a service order with the Editable in Service Order check box selected during service definition creation:

      • If you create a service order with the auto-pick option enabled, the VLAN ID is selected from the auto-pick range, and the value is displayed in the VLAN range for manual input field. If you attempt to change the VLAN ID manually, the value is restricted to the manually configured range.

      • If you create a service order with the auto-pick option disabled, the VLAN ID is selected from the manually configured range, and the value is displayed in the VLAN range for manual input field. If you attempt to change the VLAN ID manually, the value is restricted to the manually configured range.

      VLAN range for auto-pick

      Specify the range.

      Range: 1 through 4094.

      VLAN range for manual input

      Specify the range.

      Range: 1 through 4094.

      Note: This parameter reserves a range of VLANs for provisioning L3VPNs. These VLANs are not used to transport data from one end of a connection to the other.

      PE-CE Routing

      Routing Protocols

      Select an option to use to allow each PE router to distribute VPN-related routes to and from connected CE routers:

      • OSPF/Static Route—OSPF routes IP packets based solely on the destination IP address contained in the IP packet header. OSPF quickly detects topological changes, such as when router interfaces become unavailable, and calculates new loop-free routes quickly and with a minimum of routing overhead traffic. Static routes are routes that are manually configured and entered into the routing table.

      • BGP/Static Route—BGP routing information includes the complete route to each destination. BGP uses the routing information to maintain a database of network reachability information, which it exchanges with other BGP systems. BGP uses the network reachability information to construct a graph of AS connectivity, thus allowing BGP to remove routing loops and enforce policy decisions at the AS level. Static routes are routes that are manually configured and entered into the routing table.

      PE-CE Interface Address Settings

      Pool-based assignment

      Indicate the method to be used for assigning IP addresses to PE and CE interfaces. The address-assignment pool feature supports subscriber management and DHCP management functionality by enabling you to create centralized IPv4 and IPv6 address pools independently of the client applications that use the pools.

      Select the check box to enable allocation of IP addresses from address pools. By default, this check box is deselected. Clear the check box to disable the address-assignment pools functionality.

      IP Pool Type

      Select an IP pool type option:

      • Global—A Global IP address pool pertains to the service provider. There can be more than one global IPv4 address pool. However, each global pool must have its own unique name and its set of IPv4 addresses must not overlap with those of any other global pool. You can allocate addresses from global pools across multiple Layer 3 VPNs across multiple customers.

      • Customer—A Customer IP address pool pertains to an existing customer. These pools are associated with the corresponding customer. You can associate more than one customer IPv4 pool with each customer. However, each customer pool must have its own set of IPv4 addresses which must not overlap with those of any other pool belonging to the same customer. You can allocate addresses from customer pools across multiple Layer 3 VPNs for a particular customer.

      For more information on creation an IP pool, see Creating an IP Address Pool.

      Auto-pick PE Interface IP Address

      Select an option:

      • Clear the check box to enable the service provider to specify the IP address of a provider edge (PE) interface.

      • Select the check box to cause the IP address of a provider edge (PE) interface to be selected automatically.

      To override this setting in the service order, you can select the Editable in Service Order check box.

      IP Address Block Size

      Specify the size of the IPv4 IP addressee block allocated for each provider edge (PE) or customer edge (CE) link.

      Range: 28 through 32

      To override this setting in the service order, you can select the Editable in Service Order check box.

    2. Click Review to view the defined parameters. You can examine and modify the created service order parameters. Alternatively, click the corresponding buttons at the top of the wizard page to navigate to the specific pages pertain to the settings you want to modify. Click Back to return to the previous page of the wizard; else click Cancel to discard the changes.

      After you complete reviewing the settings, click Finish to complete the service definition creation.

    Reviewing the Configured Settings

    The Review page of the service definition or service order creation and modification wizards enable you to view and evaluate the service parameters and components you configured in preceding steps or pages of the wizard. This page provides a comprehensive, single-page view of all the service elements configured in the different pages of the wizard. You can either click the buttons corresponding to the various settings at the top of the wizard page to directly traverse to the page you want to modify or click the navigation buttons at the bottom of the wizard page to go to the different pages of the wizard.

    Note: On the Review page, in the Service Templates section, the names of the service templates with which the service definition is associated are displayed. The Default Service Template column indicates whether the attached template is the default template.

    To examine and modify the configured service definition settings:

    1. Click Review to view the defined parameters. You can examine and modify the created service order parameters. Alternatively, click the corresponding buttons at the top of the wizard page to navigate to the specific pages pertain to the settings you want to modify.
    2. Click Edit next to the section that contains the parameter you want to modify. You are navigated to the corresponding page of the wizard in which the parameter settings are defined.
    3. Click Finish to save the service definition or service order.
    4. Click Back to return to the previous page of the wizard; else click Cancel to discard the changes.

      The service order inventory window appears.

    Modified: 2016-02-08