Technical Documentation

Creating a Point-to-Multipoint Ethernet Service Definition

This procedure provides the steps to create a definition for a point-to-multipoint Ethernet service. Point-to-multipoint services are also knows as hub and spoke services.

The standard service definitions that came with your initial software installation are designed to be appropriate for most requirements. You can also create a customized service definition—for example, to set different bandwidth limits on the service than those offered in the standard service definitions.

When the new service definition is complete and published, network operators or service provisioners can use the completed service definition as a base for creating and then activating point-to-multipoint Ethernet services on the network.

The screens appear in the order stated. You can, however, perform these steps in any order by accessing them through the task list in the right panel. If the panel is not visible, click the snap tool on the right side of the main display area.

To create a point-to-multipoint Ethernet service definition, follow these procedures:

Specifying General Information

To specify the general information for a point-to-multipoint service definition, follow these steps:

In the Ethernet Activator task ribbon, select the Service Design workspace icon.
In the task ribbon, select the Manage Service Defintions task icon.
In the task ribbon, select the Create VPLS Service Definition task icon.
The first Create Service Definition screen appears. A sample screen follows:
In the Name field, enter a name for the service definition.
In the Service type field, select Point-to-Multipoint Ethernet (VPLS).
In the Comments field, enter a brief description or other comment that you want to appear in the Service Definition table. (Optional)
Click Next to save the General step information. The Connectivity step appears.

Specifying Connectivity and Security Information

In the Connectivity step, specify the attributes that define the connectivity among remote sites across the service provider network and the service security. A sample Connectivity screen follows:

To specify connectivity between sites across the network, follow these steps:

In the Connectivity Settings box, select a value in the Normalized VLAN field:

To preserve customer VLAN IDs across the network, select Normalized VLAN all.
To preserve no VLAN IDs across the network, select Normalized VLAN none.
If VLAN IDs are to be provided manually and are required to match, select Not normalized.

Note: For services that transport a range of VLANs, you must select Normalized VLAN all . You cannot transport a range of VLANs without normalization.

For port-to-port services, you must select Not normalized.

For more information about VLAN normalization, see Junos Space Layer 2 Services Overview

The Route target field and the Route distinguisher field are not editable. These values are always selected automatically.

In the MAC Security Settings box, make selects for MAC learning and MAC statistics and enter values for MAC Interface MAC limit and MAC table size.
Click Next to save the connectivity settings. The UNI Settings step appears.

Specifying UNI Settings

In the UNI Settings step, provide the UNI service attributes for this service definition. The attributes you set depend on whether you are setting attributes for ports, 802.1Q interfaces, or Q-in-Q interfaces:

Specifying UNI Settings for Port-to-Port Services

Note: You can select the port-port option only for services that are not normalized. That is, you must have selected Not Normalized when specifying the connectivity. If you cannot select the port-port option, use the back button to return to the previous screen. See Specifying Connectivity and Security Information.

To set UNI attributes for port UNIs:

In the Ethernet option field, select port-port. The screen shows options specific to port-to-port interfaces:
In the Customer traffic type field, select N/A. For port-to-port services, all traffic is always transported.
The VLAN ID cannot be selected. In port-to-port services, all traffic and all VLANs on one port are transported to all other ports.
In the Physical IF encapsulation field, select ethernet-vpls, which is the only valid physical interface encapsulation method for port-to-port services.
The Logical IF encapsulation field cannot be selected because it is not relevant to port-to-port services.
In the Default MTU field, specify the MTU for each UNI.
To allow the service provisioner to override the MTU setting, select Editable in service order. In the MTU range fields, enter the lowest and highest values for MTU that the service provisioner can enter.
To enable a service provisioner to limit the available bandwidth, select Enable rate limiting and enter a default bandwidth limit.
To enable the service provisioner to override the default bandwidth value, select the Editable in service order checkbox. The Bandwidth Range (Mbps) and Increment (Mbps) fields become active.
- In the Bandwidth range (Mbps) fields, enter the lowest and highest values that the service provisioner can enter.
- In the Increment (Mbps) field, enter a value that defines which values in the range will be made available to the service provisioner. For example, a range of 10 through 50 with an increment of 10 makes the following values available to the service provisioner: 10, 20, 30, 40, and 50 Mbps.
Click Finish to save the UNI settings.
The service definition is complete.

Specifying UNI Settings for Services with 802.1Q Interface Types

To set UNI attributes for 802.1Q interfaces:

In the Ethernet option field, select dot1q. The following screen shows options specific to 802.1Q interfaces.
In the Customer Traffic type field, select Transport single vlan to transport the traffic for a specific VLAN across the network. Single VLAN is the only option for 802.1Q interface types.
In the VLAN ID selection field, specify how the VLAN ID is determined:
- To allow the service provider to specify the VLAN ID, choose Select manually. This option is used typically when no VLAN normalization is applied.
- To cause the VLAN ID to be selected automatically from the VLAN ID pool, select Auto pick. This option is used typically when VLAN normalization is applied.
To enable the service provisioner to override this setting in a service order, select Editable in service order.
In the Physical IF encapsulation field, select the default physical encapsulation scheme to be used by service orders based on this service definition. For point-to-multipoint services with 802.1Q interfaces, the only option is flexible-ethernet-services.
The Logical IF encapsulation field is constrained by your selection in the Physical IF encapsulation field. For the physical encapsulation mode of flexible-ethernet-services, your only option is to select vlan-vpls for the logical encapsulation method.
In the Default MTU field, specify the MTU for each UNI.
To allow the service provisioner to override the MTU setting, select Editable in service order and, in the MTU range fields, enter the highest and lowest MTU values that the service provisioner can enter.
To enable a service to limit the available bandwidth, select Enable rate limiting and enter a default bandwidth limit in the Default bandwidth (Mbps) field.
To enable the service provisioner to override the default bandwidth value, select the Editable in service order checkbox. The Bandwidth Range (Mbps) and Increment (Mbps) fields become active.
- In the Bandwidth range (Mbps) fields, enter the lowest and highest values that the service provisioner is allowed to enter.
- In the Increment (Mbps) field, enter a value that defines which values in the range will be made available to the service provisioner. For example, a range of 10 through 50 with an increment of 10 makes the following values available to the service provisioner: 10, 20, 30, 40, and 50 Mbps.
Click Finish to save the UNI settings.
The service definition is complete.

Specifying UNI Settings for Services with Q-in-Q Interface Types

To set UNI attributes for Q-in-Q interfaces:

In the Ethernet option field, select qinq. The screen expands to include options specific to Q-in-Q interfaces, as shown in the following example screen:
In the Customer traffic type field:
- Select Transport all traffic if you want to transport the traffic from all VLANs across the network.
- Select Transport vlan range if you want to limit the traffic across the network to a specific range of VLANs.
  If you select this option, the service provisioner will be prompted for the VLAN-ID range when creating a service order based on this service definition.
In the VLAN ID selection field, specify how the service VLAN ID will be set during service order creation:
- To cause the provisioning software to automatically select the service VLAN ID from the VLAN ID pool, select Auto pick. This option is used typically when no VLAN normalization is applied.
- To allow the service provisioner to specify the service VLAN ID, choose Select manually. This option is used typically when VLAN normalization is applied.
To enable the service provisioner to override this setting, select the Editable in service order checkbox.
In the Physical IF encapsulation field, select the default physical encapsulation scheme to be used by service orders based on this service definition. For point-to-multipoint services with Q-in-Q interfaces, the only option is flexible-ethernet-services.
The Logical IF encapsulation field is constrained by your selection in the Physical Interface Encapsulation field. For the physical encapsulation mode of flexible-ethernet-services, your only option is to select vlan-vpls for the logical encapsulation method.
In the Default MTU field, specify the MTU for each UNI.
To allow the service provisioner to override the MTU setting, select the Editable in service order checkbox and, in the MTU range fields, enter the lowest and highest values for the MTU that the service provisioner can enter.
To enable a service to limit the available bandwidth, select the Enable rate limiting checkbox and enter a default bandwidth limit in the Default bandwidth (Mbps) field.
To enable the service provisioner to override the default bandwidth value, select the Editable in service order checkbox. The Bandwidth Range (Mbps) and Increment (Mbps) fields become active.
- In the Bandwidth range (Mbps) fields, enter the lowest and highest values that the service provisioner can enter.
- In the Increment (Mbps) field, enter a value that defines which values in the range will be made available to the service provisioner. For example, a range of 10 through 50 with an increment of 10 makes the following values available to the service provisioner: 10, 20, 30, 40, and 50 Mbps.
Click Finish to complete the service definition.