HP ProCurve 5400zl Reference Manual page 456

Command Line Interface Reference Guide
Modes:
--------------
Disabled
IP Precedence
Differentiated
Services
o diff-services <0|1...63|af11|af12|af13|af21|af22|af23|af31|af32|af33|
of the upper bits in the ToS field.
o dscp <0|1...63|af11|af12|af13|af21|af22|af23|af31|af32|af33|af42|af42|
Differentiated Services codepoint to the specified DSCP Policy and
codepoint on outbound.
Supported Values:
■ af11
■ af12
■ af13
■ af21
■ af22
■ af23
■ af31
■ af32
© 2009 Hewlett-Packard Development Company, L.P.
of each packet. Using 'no' type-of-service with just the
mode (ip-precedence or diff-services) will disable all ToS
QoS for the switch.
The switch does NOT prioritize IP packets based on the IP
ToS field.
The switch uses the upper 3 bits of the IP ToS field (the IP
Precedence bits) to determine the 802.1p priority of the
packet and its outbound switch queue. If the packet is
transmitted out a port on which VLAN tagging is enabled, the
new priority is placed in the outbound VLAN tag. See the
switch documentation for more information.
The switch uses the upper 6 bits of the ToS field (the
Differentiated Services bits) to decide whether to apply an
802.1p priority to the packet and thus affect its outbound
queue. The priority is defined by the Differentiated
Services Codepoint mapping (see 'show qos dscp-map'). If no
priority is mapped for the packet's codepoint, the switch
does not classify the packet using Differentiated Services.
If there IS an associated priority configured, and the
packet is transmitted out a port on which VLAN tagging is
enabled, the new 802.1p priority will be placed in the
outbound VLAN tag.
to the inbound DS codepoint (i.e., the codepoint has been
're-mapped'), the priority assignment and outbound queueing
will be that specified by the new Policy's codepoint in the
DSCP table, and the Differentiated Services field in the
outbound packet will be changed to the new value.
Using 'no type-of-service diff-services
removes the re-mapping assignment, i.e., a new DSCP Policy
will no longer be applied to the specified codepoint. To
remove a priority association from a codepoint altogether,
the 'no dscp-map <af11..ef|0-63|000000...111111>' function
must be used.
af41|af42|af43|ef|cs0..cs7|000000|000001...111111> - The value
af43|ef|cs0..cs7|000000|000001...111111>
If a DSCP Policy is configured to apply
<af11..ef|0-63|000000...111111>
- Re-maps a given inbound
qos
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