D-Link DXS-3400 Emulator - Page 770
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dscp DXS-3400 Series Lite Layer 3 Stackable 10GbE Managed Switch CLI Reference Guide Specifies that the ToS/DSCP bits, if available in the arriving packets, are trusted for subsequent operations. For non-IP packet, Layer 2 CoS information will be trusted for traffic classification. Default By default, CoS is trusted. Command Mode Interface Configuration Mode. Command Default Level Level: 12. Usage Guideline When the interface is set to trust DSCP, the DSCP of the arriving packet will be trusted for the subsequent QoS operations. First, the DSCP will be mapped to an internal CoS value, which will be subsequently used to determine the CoS queue. The DSCP to CoS map is configured by the mls qos map dscp-cos command. The CoS to queue map is configured by the priority-queue cos-map command. If the arriving packet is a non-IP packet, the CoS is trusted. The resulting CoS mapped from DSCP will also be the CoS in the transmitted packet. When an interface is in the trust CoS state, the CoS of the arriving packet will be applied to the packet as the internal CoS and used to determine the CoS queue. The CoS queue is determined based on the CoS to Queue mapping table. When a packet arrives at an 802.1Q VLAN tunnel port, the packet will be added with an outer VLAN tag in order to transmit through the VLAN tunnel. If the port is to trust CoS, then the inner tag CoS will be the internal CoS of the packet and the CoS value in the packet's outer VLAN tag. If the MLS QoS CoS override is configured, then the CoS specified by command mls qos cos will be the internal CoS of the packet and the CoS value in the packet's outer VLAN tag. If the port is to trust DSCP, then the CoS mapped from the DSCP code point will be the internal CoS of the packet and the CoS value in the packet's outer VLAN tag When a packet is received by a port, it will be initialized to a color based on the mls qos map dscp-color command if the receiving port is to trust DSCP or MLS QoS mapped CoS color if the receiving port is to trust CoS. Example This example shows how to configure port Ethernet 1/0/1 to trust the DSCP mode. Switch# configure terminal Switch(config)# interface ethernet 1/0/1 Switch(config-if)# mls qos trust dscp Switch(config-if)# 81-13 police This command is used to configure traffic policing to use the single rate. Use the no form of this command to remove traffic policing. police KBPS [BURST-NORMAL [BURST-MAX]] [conform-action ACTION] exceed-action ACTION [violateaction ACTION] [color-aware] no police Parameters KBPS Specifies the average rate, in kilobits per second. 766
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