Access Sap Forwarding Class Based Redirection - Alcatel-Lucent 7950 Quality Of Service Manual

Access SAP Forwarding Class Based Redirection

Forwarding class redirection is provisioned within the SAP ingress or SAP egress QoS policy. In
each policy, the forwarding class to queue ID mapping may optionally specify a named queue
group instance (policy-based redirection) or may simply tag the forwarding class for redirection
(SAP-based redirection). When the name is specified, the defined queue ID must exist in the queue
group template with the same name.
Redirecting a SAP forwarding class to a queue within a port based queue group using policy-based
redirection requires four steps:
1. Create an ingress or egress queue group template. If the forwarding class redirection is in
2. Create an ingress or egress queue group instance with the same name as the template on
3. Redirect the SAP ingress or SAP egress QoS policy forwarding class policer or queue to
7950 XRS Quality of Service Guide
Ingress and Egress Queue Group Creation and Redirection
the ingress SAP path, an ingress queue group template must be created. Similarly, an
egress queue group template must be created for egress forwarding class redirection.
Optionally, you can create the queues in a template by using default parameters.
Individual queues must be created before they are associated with a forwarding class. The
default queue parameters may be overridden on each port based queue group.
the port associated with the SAP. Examples are as follows:
On ingress ports:
config>port>ethernet>access>ingress>queue-group queue-group-name
On egress ports:
config>port>ethernet>access>egress>queue-group queue-group-name [instance
instance-id]
Queue parameter overrides can also be applied at this time.
the queue group name and desired queue ID (Steps 2 and 3 may be done in opposite
order). Examples are as follows:
On ingress:
config>qos>sap-ingress policy-id
fc fc-name
queue queue-id group queue-group-name
On egress:
config>qos>sap-egress policy-id
fc fc-name
queue queue-id group queue-group-name instance instance-id
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