4.5 Traffic
Prioritization
Quality of Service (QoS) provides a traffic prioritization mechanism that allows users to deliver
better service to certain flows. QoS can also help to alleviate congestion problems and ensure
that high priority traffic is delivered first. This section allows you to configure Traffic
Prioritization settings for each port in regards to setting priorities.
The
JetNet 3706 / JetNet 3706f
QoS supports 4 physical queues, weighted fair queuing
(WRR) and Strict Priority scheme, which follows 802.1p COS tag and IPv4 TOS/DiffServ
information to prioritize the traffic of your industrial network.
The following commands are explained in this section:
.5.1 QoS Setting
4.5.1 QoS
Setting
4
4.5.2 CoS-Queue Mapping
4.5.3 DSCP-Queue Mapping
Queue Scheduling
Use an 8,4,2,1 weighted fair queuing
scheme.
This is al
Round Robin)
.
JetN
so known as
WRR
(Weight
et will follow a 8:4:2:1 rate
ueue from the
For example, the
cess 8 packets
with the highest priority in the queue, 4
ackets with middle priority, 2 packets with
low priority, and 1 packet with the lowest
se a strict priority scheme.
Packets with
the queue will always be
to process the packets in a q
highest priority to the lowest.
system will simultaneously pro
p
priority.
U
the highest priority in
processed first.
Port Setting
The
Priority
column is to indicate the defaul
frames. When
JetNet 3706 / JetNet 3706f
receives t
priority. You can enable 0,1,2,3,4,5,6 or 7
id, queue
t port priority value for untagged or priority-tagged
he frames, it
will assign the value to the
to the port. The priority is directly mapping to queue
3 is the highest priority queue.
es for you to select.
priority will only follow CoS-Queue Mapping that you have assigned.
SCP Only:
Port priority will only follow DSCP-Queue Mapping that you have assigned.
oS first:
Port priority will follow CoS-Queue Mapping first, and then DSCP-Queue Mapping
le.
ort priority will follow DSCP-Queue Mapping first, and then CoS-Queue Mapping
Trust Mode:
This indicates Queue Mapping typ
CoS Only:
Port
D
C
ru
DSCP first:
P
rule.
JetNet 3706/JetNet 3706f Industrial Web Managed PoE Plus Switch
33
