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Industry Cellular Gateway
QoS Rule Example #2 – DifferServ Code Points
When the administrator of the gateway wants to convert the code point value, "IP Precedence
4(CS4)", in the packets from some client hosts (IP 10.0.75.196~199) to the code value, "AF
Class2(High Drop)", he can use the "Rule-based QoS" function to carry out this rule by defining an
QoS rule as shown in above configuration. Under such configuration, all packets from WAN
interfaces to LAN IP address 10.0.75.196 ~ 10.0.75.199 which have DiffServ code points with “IP
Precedence 4(CS4)” value will be modified by “DSCP Marking” control function with “AF Class 2(High
Drop)” value at any time.
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