Service Ingress Qos Policy - Alcatel-Lucent 7450 Quality Of Service Manual
Ethernet service switch; service router; extensible routing system
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Also See for 7450:
- Manual (816 pages) ,
- Configuration manual (778 pages) ,
- Basic system configuration manual (576 pages)
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There is no specific limit on the number of queues that can be monitored but the amount of
each line card CPU's resources allocated to the monitoring is bounded, consequently average
polling interval will increase as more queues are monitored on the line card.
If the MBS of a queue is modified, the occupancy information is cleared and the elapsed
timers reset to zero. Issuing a clear card will also clear this information. Packet drops caused
at the pool level, rather than at the queue level, would result in lower queue depths being
reported.
Service Ingress QoS Policy
To create an service ingress policy, define the following:
The following displays an service ingress policy configuration:
A:ALA-7>config>qos>sap-ingress# info
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...
Quality of Service Guide
•
A policy ID value. The system will not dynamically assign a value.
•
Include a description. The description provides a brief overview of policy features.
•
Specify a default forwarding class for the policy. All packets received on an ingress
SAP using this ingress QoS policy will be classified to the default forwarding class.
•
Specify a default priority for all packets received on an ingress SAP using this policy.
•
Define mappings from incoming packet contents to a forwarding class, and then,
separately, from the forwarding class to queue.
•
Define forwarding class parameters.
→ Modify the multicast-queue default value to override the default multicast
forwarding type queues mapping for fc fc-name.
→ Modify the unknown-queue default value to override the default unknown
unicast forwarding type queues mapping for fc fc-name.
→ Modify the broadcast-queue default value to override the default broadcast
forwarding type queues mapping for fc fc-name.
•
Configure precedence value for the forwarding class or enqueuing priority when a
packet is marked with an IP precedence value.
•
Specify IP, IPv6 or MAC criteria. You can define IP, IPv6 and MAC-based SAP
ingress policies to select the appropriate ingress queue and corresponding forwarding
class for matched traffic.
•
A SAP ingress policy is created with a template scope. The scope can be modified to
exclusive for a special one-time use policy. Otherwise, the template scope enables
the policy to be applied to multiple SAPs.
Service Egress and Ingress QoS Policies
207
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