HP 6120XG HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 217
QoS VLAN-ID (VID) Priority, Assigning a Priority Based on VLAN-ID
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Note Quality of Service (QoS): Managing Bandwidth More Effectively Using QoS Classifiers To Configure Quality of Service for Outbound Traffic QoS VLAN-ID (VID) Priority QoS Classifier Precedence: 5 The QoS protocol option enables you to use up to 256 VIDs as QoS classifiers. Where a particular VLAN-ID classifier has the highest precedence in the switch for traffic in that VLAN, then traffic received in that VLAN is marked with the VID classifier's configured priority level. Different VLAN-ID classifiers can have differing priority levels. Options for Assigning Priority. Priority control options for packets carrying a specified VLAN-ID include: ■ 802.1p priority ■ DSCP policy (Assigning a new DSCP and an associated 802.1p priority; inbound packets must be IPv4.) (For operation when other QoS classifiers apply to the same traffic, refer to "Classifiers for Prioritizing Outbound Packets" on page 5-10.) QoS with VID priority applies to static VLANs only, and applying QoS to dynamic VLANs created by GVRP operation is not supported. A VLAN must exist while a subject of a QoS configuration, and eliminating a VLAN from the switch causes the switch to clear any QoS features configured for that VID. Assigning a Priority Based on VLAN-ID This option assigns a priority to all outbound packets having the specified VLAN-ID (VID). You can configure this option by either specifying the VLANID ahead of the qos command or moving to the VLAN context for the VLAN you want to configure for priority. 5-41