Alcatel-Lucent 6850-48 Guida Di Rete

Configuring VPLS

Configuring VPLS Services

OmniSwitch AOS Release 6 Network Configuration Guide

page 11-21

By default, the mesh-SDP service binding is disabled when the binding is created. To administratively 
enable the binding, use the 

 command with the no shutdown 

option. For example:

-> configure service vpls 100 mesh-sdp 10 no shutdown

To disable the binding, enter the following command:

-> configure service vpls 100 mesh-sdp 100 shutdown

A SAP identifies the location where customer traffic enters the provider network edge, the type of 
customer traffic to service, parameters to apply to the traffic, and the service that will process the traffic 
for tunneling through the provider network.

Configuring a SAP requires several steps. These steps are outlined here and further described throughout 
this section:

• Configure customer-facing ports or link aggregates as service access ports. 

• Configure the access port encapsulation mode to determine if the port will support a single SAP (one 

customer service) or multiple SAPs (customer services). 

• Configure Layer 2 profiles to determine how control packets are processed on access ports.

• Create a SAP by associating a SAP ID with a VPLS service ID. A SAP ID is comprised of an access 

port and an encapsulation value, which is used to identify the type of customer traffic to map to the 
associated service.

Consider the following when configuring a SAP:

• A SAP is a unique local entity for any given device. The same SAP ID value can be used on another 

PE device.

• There are no SAPs configured by default; explicit configuration of a SAP is required.

• A SAP is administratively disabled at the time the SAP is created.

• When a SAP is deleted, all configuration parameters for the SAP are also deleted.

• A SAP is owned by and associated with the service that was specified at the time the SAP was created. 

• A port with a dot1q encapsulation type classifies traffic for the SAP based on a specific IEEE 802.1Q 

VLAN ID value. The VLAN ID is preserved from SAP ingress to a SAP egress. As a result, the VLAN 
IDs have end-to-end significance, which means the same VLAN ID configuration is required at each 
end of the service.

• If a port is administratively shutdown, all SAPs on that port become operationally out of service.

• If the customer frame is double tagged, only the outer tag is used for SAP classification.

• The access port mode is supported only on fixed ports or link aggregates. Only access ports are associ-

ated with SAPs.