Allied Telesis AT-S63 User Manual

AT-S63 Management Software Features Guide

Section II: Advanced Operations

147

Following is a list of QoS policy guidelines:

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A classifier may be assigned to many flow groups. However, assigning 
a classifier more than once within the same policy may lead to 
undesirable results. A classifier may be used successfully in many 
different policies.

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A flow group must be assigned at least one classifier but may have 
many classifiers.

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A flow group may be assigned to only one traffic class.

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A traffic class may have many flow groups.

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A traffic class may only be assigned to one policy.

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A policy may have many traffic classes.

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A policy may be assigned to many ports.

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A port may only have one policy.

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You can create a policy without assigning it to a port, but the policy will 
be inactive.

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A policy must have at least one action defined in the flow group, traffic 
class, or the policy itself. A policy without an action is invalid.

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A Quality of Service policy and an access control list can coexist on the 
same port only if they have different classifiers.

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The switch can store up to 64 flow groups.

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The switch can store up to 64 traffic classes.

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The switch can store up to 64 policies.