HP ProCurve 5300xl Series Management Manual page 329

Using QoS Classifiers To Configure Quality of Service for Outbound Traffic
Syntax: vlan < vid > qos dscp < codepoint >
Assigns a DSCP policy to packets carrying the specified
IP address, and overwrites the DSCP in these packets
with the assigned <
includes an 802.1p priority and determines the
packet's queue in the outbound port to which it is sent.
If the packet leaves the switch on a tagged port, it
carries the 802.1p priority with it to the next down-
stream device. (Default:
Syntax: no vlan < vid > qos
Removes QoS classifier for the specified VLAN.
Syntax: show qos device-priority
Displays a listing of all QoS VLAN-ID classifiers cur­
rently in the running-config file.
For example, suppose you wanted to assign this set of priorities:
VLAN-ID DSCP
40 000111
30 000101
20 000010
1 000010
1. Determine whether the DSCPs already have priority assignments, which
could indicate use by existing applications. This is not a problem as long
as the configured priorities are acceptable for all applications using the
same DSCP. (Refer to the "Note On Changing a Priority Setting" on page
8-65. Also, a DSCP must have a priority configured before you can assign
any QoS classifiers to use it.)
Figure 8-28. Display the Current Configuration in the DSCP Policy Table
Quality of Service (QoS): Managing Bandwidth More Effectively
codepoint
Priority
7
5
1
1
> value. This policy
)
No-override
The DSCPs for this
example have not yet
been assigned an
802.1p priority level.
8-55