HP ProCurve 5300xl Series Management Manual page 334

Quality of Service (QoS): Managing Bandwidth More Effectively
Using QoS Classifiers To Configure Quality of Service for Outbound Traffic
N o t e
8-60
a. Determine the DSCP you want to assign to the selected packets. (This
codepoint will be used to overwrite the DSCP carried in packets
received through the source-port from upstream devices.)
b. Determine the 802.1p priority you want to assign to the DSCP.
3. Configure the DSCP policy by using qos dscp-map to configure the priority
for each codepoint. (For details, refer to the example later in this section
and to "Differentiated Services Codepoint (DSCP) Mapping" on page
8-62.)
A codepoint must have an 802.1p priority assignment (0 - 7) before you can
configure that codepoint as a criteria for prioritizing packets by source-port.
If a codepoint shows No-override in the Priority column of the DSCP Policy
Table (show qos dscp-map), then you must assign a 0 - 7 priority before
proceeding.
4. Configure the switch to assign the DSCP policy to packets from the
specified source-port.
Syntax: qos dscp-map < codepoint > priority < 0 - 7 >
This command is optional if a priority has already been
assigned to the < codepoint >. The command creates a DSCP
policy by assigning an 802.1p priority to a specific DSCP.
When the switch applies this priority to a packet, the priority
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 downstream
device. (Default: For most codepoints,
8-14 on page 8-63 on page 8-63.)
Syntax: interface < port-list > qos dscp < codepoint >
Assigns a DSCP policy to packets from the specified source-
port(s), and overwrites the DSCP in these packets with the
assigned <
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
downstream device. (Default:
Syntax: no interface [e] < port-list > qos
Removes QoS classifier for the specified source-port(s).
Syntax: show qos source-port
Displays a listing of all source-port QoS classifiers currently
in the running-config file.
codepoint
> value. This policy includes an 802.1p
No-override
No-override . See figure
)