ToughNet NAT Router User's Manual
TN-5916 Series Features and Functions
3-24
NOTE
The priority of an ingress frame is determined in the following order:
1.
Inspect CoS
2.
Inspect ToS
3.
Port Priority
NOTE
The designer can enable these classifications individually or in combination. For instance, if a “hot” higher
priority port is required for a network design,
Inspect TOS
and
Inspect CoS
can be disabled. This setting
leaves only port default priority active, which results in all ingress frames being assigned the same priority on
that port.
CoS Mapping
CoS Value and Priority Queues
Setting
Description
Factory Default
Low/Normal/
Medium/High
Maps different CoS values to 4 different egress queues.
Low
Normal
Medium
High
ToS/DSCP Mapping
