HP 6120XG HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 227
Differentiated Services Codepoint (DSCP) Mapping, No-override, Priority, show qos dscp-map
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Quality of Service (QoS): Managing Bandwidth More Effectively Differentiated Services Codepoint (DSCP) Mapping Differentiated Services Codepoint (DSCP) Mapping A codepoint must have an 802.1p priority assignment (0 - 7) before you can configure a policy for prioritizing packets. If a codepoint you want to use shows No-override in the Priority column of the DSCP map (show qos dscp-map), then you must assign a 0 - 7 priority before proceeding (qos dscp-map priority command). The DSCP Policy Table associates an 802.1p priority with a specific ToS byte codepoint in an IPv4 packet. This enables you to set a LAN policy that operates independently of 802.1Q VLAN-tagging. In the default state, most of the 64 codepoints do not assign an 802.1p priority, as indicated by No-override in table 5-9. You can use the following command to list the current DSCP Policy table. Syntax: show qos dscp-map Displays the DSCP Policy Table. Table 5-9. The Default DSCP Policy Table DSCP Policy 0 1 2 3 4 5 6 7 8 9 af11 11 802.1p Tag No-override No-override No-override No-override No-override No-override No-override No-override No-override No-override No-override No-override Policy Name DSCP Policy 32 33 af41 35 af42 37 af43 39 40 41 42 43 802.1p Tag No-override No-override No-override No-override No-override No-override No-override No-override No-override No-override No-override No-override Policy Name 5-51