Alcatel-Lucent 6850-48 Network Guide
Configuring VPLS Services
Configuring VPLS
page 11-24
OmniSwitch AOS Release 6 Network Configuration Guide
September 2009
Creating the SAP
Each service it bound to at least one Service Access Point, which identifies the point at which customer
traffic enters the provider edge (PE). Configuring a SAP requires the following components:
traffic enters the provider edge (PE). Configuring a SAP requires the following components:
• An existing service ID number for the service to which the SAP will direct traffic.
• An access port or link aggregate number configured with either a null or dot1q encapsulation type.
• An encapsulation value (0, all, or VLAN ID) that identifies the type of customer traffic ingressing on
the access port that the SAP will direct to the service.
Configuring the encapsulation value for the SAP ID depends on the encapsulation type (null or dot1q)
configured for the access port. Use the following table to determine the appropriate value to use:
configured for the access port. Use the following table to determine the appropriate value to use:
Once the above components are configured, use the
to create a SAP.
For example, the following command creates a SAP that will direct customer traffic ingressing on access
port 1/4 that is tagged with VLAN ID 50 to service 100:
port 1/4 that is tagged with VLAN ID 50 to service 100:
-> configure service vpls 100 sap 1/4:50 create
In the above example, the 1/4:50 designation is often referred to as the SAP ID or the encapsulation ID. In
addition, the access port was configured with a dot1q encapsulation type. This means that if no other SAPs
are configured for port 1/4, then any traffic ingressing on that port is dropped if the traffic is not tagged
with VLAN 50.
addition, the access port was configured with a dot1q encapsulation type. This means that if no other SAPs
are configured for port 1/4, then any traffic ingressing on that port is dropped if the traffic is not tagged
with VLAN 50.
Configure the SAP Trust Mode
command is used to configure the trust mode for a SAP. A trusted
SAP can accept 802.1p values in incoming packets; an untrusted SAP will set any 802.1p values to zero in
incoming packets, unless an 802.1p value is configured with this command.
incoming packets, unless an 802.1p value is configured with this command.
By default, a SAP is trusted with the priority set to best effort (zero). Use the no form of the configure
service vpls sap trusted command with the priority option to change the SAP mode to untrusted. For
example:
service vpls sap trusted command with the priority option to change the SAP mode to untrusted. For
example:
-> configure service vpls 100 sap 1/4:50 no trusted priority 7
When a SAP is trusted, the priority value contained in tagged customer packets is used; untagged packets
are assigned the default priority value (zero). When a SAP is untrusted, the priority value configured for
the SAP is assigned to both tagged and untagged customer packets.
are assigned the default priority value (zero). When a SAP is untrusted, the priority value configured for
the SAP is assigned to both tagged and untagged customer packets.
Port Encap Type
SAP Encap Value
Customer Traffic Serviced
null 0
All tagged and untagged packets. The all and
VLAN ID values are not configurable on null
access ports.
VLAN ID values are not configurable on null
access ports.
dot1q
0
All untagged packets; tagged packets are dropped.
dot1q
all
All tagged and untagged packets not already clas-
sified into a SAP.
sified into a SAP.
dot1q
VLAN ID (q-tag)
Only traffic tagged with the specified VLAN ID.