170CHAPTER 13: CONFIGURING QUALITY OF SERVICE
Viewing CoS Settings The CoS Summary Page displays the CoS default settings assigned to each port.
To view CoS Settings:
1Click Device > QoS > CoS > Summary. The CoS Summary Page opens:
Figure 87 CoS Summary Page
The CoS Summary Page contains the following fields:
■Port — Displays the port for which the CoS default value is defined.
■Default CoS — Displays the default CoS value for incoming packets for which a VLAN priority tag is not defined. The possible field values are
Defining CoS The CoS Setup Page allows the network administrator to set the priority for incoming untagged frames.
The default priority applies for an untagged frame received on a port set to accept all frame types (i.e, receives both untagged and tagged frames). This priority does not apply to IEEE 802.1Q VLAN tagged frames. If the incoming frame is an IEEE 802.1Q VLAN tagged frame, the IEEE 802.1p User Priority bits will be used.
This switch provides four priority queues for each port. Inbound frames that do not have VLAN tags are tagged with the input port’s default ingress user priority, and then placed in the appropriate priority queue at
