EverFocus ES2446-51 User Manual page 27

ES2446-51
QoS Mode: 802.1p
Packets are prioritized using the 802.1p field in the VLAN tag. This field is three bits
long, representing the values 0 - 7. When the QoS Mode is set to 802.1p, the 802.1p
Configuration table appears, allowing you to map each of the eight 802.1p values to
a local priority queue (low, normal, medium or high). The default settings are shown
below.
When the QoS Mode is set to 802.1p, the 802.1p Configuration table is displayed as
shown below. The Custom Prioritize Traffic is the default and suggested value.
QoS Mode: DSCP
DSCP: Packets are prioritized using the DSCP (Differentiated Services Code
Point) value. The Differentiated Services Code Point (DSCP) is a six-bit field that is
contained within an IP (TCP or UDP) header. The six bits allow the DSCP field to take
any value in the range 0 - 63. When QoS Mode is set to DSCP, the DSCP
Configuration table is displayed, allowing you to map each of the DSCP values to a
hardware output queue (low, normal, medium or high). The default settings map all
DSCP values to the high priority egress queue.
User can use the Prioritize Traffic drop-down list to quickly set the values in the
DSCP Configuration table to a common priority queue. Use Custom if you want to set
each value individually.
When the QoS Mode is set to DSCP, the DSCP Configuration table is displayed as
shown below.
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