Sap Configuration Considerations - Alcatel-Lucent 7750 SR OS Service Manual

Service Entities

SAP Configuration Considerations

When configuring a SAP, consider the following:
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A SAP is a local entity and only locally unique to a given device. The same SAP ID value
can be used on another SR-Series.
There are no default SAPs. All SAPs in subscriber services must be created.
The default administrative state for a SAP at creation time is administratively enabled.
When a SAP is deleted, all configuration parameters for the SAP will also be deleted. For
Internet Ethernet Service (IES), the IP interface must be shutdown before the SAP on that
interface may be removed.
A SAP is owned by and associated with the service in which it is created in each SR-
Series.
A port/channel with a dot1q or BCP-dot1q encapsulation type means the traffic for the
SAP is identified based on a specific IEEE 802.1Q VLAN ID value. The VLAN ID is
stripped off at SAP ingress and the appropriate VLAN ID placed on at SAP egress. As a
result, VLAN IDs only have local significance, so the VLAN IDs for the SAPs for a
service need not be the same at each SAP.
If a port/channel is administratively shutdown, all SAPs on that port/channel will be
operationally out of service.
A SAP cannot be deleted until it has been administratively disabled (shutdown).
Each SAP can have one each of the following policies assigned:
→ Ingress filter policy
→ Egress filter policy
→ Ingress QoS policy
→ Egress QoS policy
→ Accounting policy
→ Ingress scheduler policy
→ Egress scheduler policy
7750 SR OS Services Guide