SW3
GIGABIT/FAST ETHERNET SWITCH TYPE SW3 (DIN)
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USER GUIDE - M0SW3D1905Iv04 - V04 May 2019
DSCP:
This section selects the classification conditions of the frames in each one the three
existing queues according to the DSCP field value of the main IP. A discreet value range is
admitted for the DSCP field.
•
#.
This identifies the value of the DSCP field being processed.
•
Queue.
This sets the queue priority in which the traffic coinciding with the DSCP
value indicated by the # field will be inserted. Valid values identify the three internal
priorities:
High
,
Medium
or
Low.
QoS Port Table:
This section selects the conditions to obtain or assign the priority to each one of the ports.
•
#.
The physical interface identifier.
•
Priority.
Value of the priority assigned to frame 802.1 received through the interface
indicated by #. This priority is assigned when the frames received do not include an
802.1p tag. The assigning of internal priorities is done based on the values selected
in the section entitled
Priority
.
•
Use IEEE 802.1p.
The enabled option indicates that the priority field present in the
frames must be used when they include tag 802.1p. The assigning of internal
priorities is done based on the values selected in the section entitled
Priority.
•
Use DSCP.
The enabled option indicates that the DSCP field of the frames received
must be processed, to assign the internal frame priority of the frame, based on the
values selected in the section entitled
DSCP.
The options
Use IEEE 802.1p
and
Use DSCP
may be activated simultaneously.
The hierarchy for the final priority assigned to the frame is the following:
DSCP
,
IEEE 802.1p
and
Priority
(user); so that:
- The priority selected by the user will be associated with an untagged frame.
- The priority present in the frame will be maintained in a tagged frame, provided
the DSCP field is not present (traffic or IP) or does not coincide with any of the
specified values.