EDS-508A/505A Series User’s Manual Featured Functions
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default port priority will take effect.
Inspect TOS
Setting Description Factory Default
Enable/Disable Select the option to enable the EDS to inspect the Type
of Service (TOS) bits in IPV4 frame to determine the
priority of each frame.
Enable
Inspect COS
Setting Description Factory Default
Enable/Disable Select the option to enable the EDS to inspect the 802.1p
COS tag in the MAC frame to determine the priority of
each frame.
Enable
NOTE
The priority of an ingress frame is determined in order by:
1. Inspect TOS
2. Inspect CoS
3. Port Highest 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
Setting Description Factory
Low/Normal/
Medium/High
Set the mapping table of different CoS values to 4
different egress queues.
0: Low
1: Low
2: Normal
3: Normal
4: Medium
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