D-Link DXS-3400 Emulator - Page 764
mls qos dscp-mutation
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DXS-3400 Series Lite Layer 3 Stackable 10GbE Managed Switch CLI Reference Guide Usage Guideline When the override option is not specified, the CoS of the packets will be the packet's CoS if the packets are tagged, and will be the port default CoS if the packet is untagged. When the override option is specified, the port default CoS will be applied to all packets received by the port. Use the override keyword when all incoming packets on certain ports deserve a higher or lower priority than packets that enter from other ports. Even if a port was previously set to trust DSCP or CoS, this command overrides that trust state, and all CoS values on the incoming packets are changed to the default CoS value that is configured with the mls qos cos command. If an incoming packet is tagged, the CoS value of the packet is modified at the ingress port. For packets arriving at the 802.1Q VLAN tunnel port, the port default CoS will be both the internal CoS assigned to the packet, and the CoS value in the tunnel VLAN tag of the transmitted packet. Example This example shows how the default CoS of Ethernet port 1/0/1 is set to 3. Switch# configure terminal Switch(config)# interface ethernet 1/0/1 Switch(config-if)# mls qos cos 3 Switch(config-if)# 81-6 mls qos dscp-mutation This command is used to attach an ingress Differentiated Services Code Point (DSCP) mutation map to the interface. Use the no form of this command to remove the ingress DSCP mutation map association from the interface. mls qos dscp-mutation DSCP-MUTATION-TABLE-NAME no mls qos dscp-mutation Parameters DSCP-MUTATION-TABLE- Specifies the name of the DSCP mutation table. The string of the name is up to 32 NAME characters and no space is allowed. Default None. Command Mode Interface Configuration Mode. Command Default Level Level: 12. Usage Guideline Use this command to attach an ingress DSCP mutation table to an interface. The ingress DSCP mutation will mutate the DSCP value right after the packet is received by the interface, and QoS handles the packet with this new value. The switch sends the packet out the port with the new DSCP value. 760
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