3.4.2 Setting of DSCP rewrite
The following describes the configuration when the DSCP is to be updated for certain types of flows.
- Points to note
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When frames are received, first flow detection is performed based on the destination IP address, and then the DSCP value is updated.
Command examples
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(config)# ip qos-flow-list QOS-LIST3
Creates a IPv4 QoS flow list (QOS-LIST3). By creating this list, IPv4 QoS flow list mode is entered.
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(config-ip-qos)# qos ip any host 192.168.100.10 action replace-dscp 63
Configures the IPv4 QoS flow list for destination IP 192.168.100.10, and then sets that the DSCP value is to be updated to 63.
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(config-ip-qos)# exit
Returns to global configuration mode from IPv4 QoS flow list mode.
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(config)# interface gigabitethernet 1/0/3
Switches to the interface mode of port 1/0/3.
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(config-if)# ip qos-flow-group QOS-LIST3 in
Enables the IPv4 QoS flow list (QOS-LIST3) on the receiving side.