
Avaya QoS Manager User Guide 5
Avaya QoS Manager Overview
CoS Priority - Avaya switches use only the packets CoS tag. If a
packet entering a module matches no rules, or matches a rule
with a permit operation, the packet will be forwarded with the
priority in the packet's CoS tag.
Untrust - Avaya QoS Manager ignores both DSCP tags and CoS
priority tags. If a packet entering a module matches no rules, or
matches a rule with a permit operation, the packet will be
forwarded with the default priority.
Both - Avaya QoS Manager uses DSCP tag and CoS priority tags.
If a packet entering a module matches no rules, or matches a rule
with a permit operation, the packet's DSCP priority (based on
the DSCP Mapping table) and the packet's CoS are compared. The
packet is forwarded with the higher of the two priorities.
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