Cisco WS-C2960-24TC-S Software Guide - Page 548
show policy-map, service-policy input
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Configuring Standard QoS Chapter 28 Configuring QoS Command Purpose Step 7 police rate-bps burst-byte [exceed-action {drop | policed-dscp-transmit}] Define a policer for the classified traffic. By default, no policer is defined. For information on the number of policers supported, see the "Standard QoS Configuration Guidelines" section on page 28-32. • For rate-bps, specify average traffic rate in bits per second (b/s). The range is 1000000 to 1000000000. You can set the policing rate only in 1-Mb/s increments. If you try to set a policing rate at less than1 Mb/s, the switch prompts you for a correct value. • For burst-byte, specify the normal burst size in bytes. The range is 8000 to 1000000. • (Optional) Specify the action to take when the rates are exceeded. Use the exceed-action drop keywords to drop the packet. Use the exceed-action policed-dscp-transmit keywords to mark down the DSCP value (by using the policed-DSCP map) and to send the packet. For more information, see the "Configuring the Policed-DSCP Map" section on page 28-54. Step 8 exit Return to policy map configuration mode. Step 9 exit Return to global configuration mode. Step 10 interface interface-id Specify the port to attach to the policy map, and enter interface configuration mode. Valid interfaces include physical ports. Step 11 service-policy input policy-map-name Specify the policy-map name, and apply it to an ingress port. Only one policy map per ingress port is supported. Step 12 end Return to privileged EXEC mode. Step 13 show policy-map [policy-map-name [class Verify your entries. class-map-name]] Step 14 copy running-config startup-config (Optional) Save your entries in the configuration file. To delete an existing policy map, use the no policy-map policy-map-name global configuration command. To delete an existing class map, use the no class class-map-name policy-map configuration command. To return to the untrusted state, use the no trust policy-map configuration command. To remove an assigned DSCP or IP precedence value, use the no set {dscp new-dscp | ip precedence new-precedence} policy-map configuration command. To remove an existing policer, use the no police rate-bps burst-byte [exceed-action {drop | policed-dscp-transmit}] policy-map configuration command. To remove the policy map and port association, use the no service-policy input policy-map-name interface configuration command. This example shows how to create a policy map and attach it to an ingress port. In the configuration, the IP standard ACL permits traffic from network 10.1.0.0. For traffic matching this classification, the DSCP value in the incoming packet is trusted. If the matched traffic exceeds an average traffic rate of 48000 b/s and a normal burst size of 8000 bytes, its DSCP is marked down (based on the policed-DSCP map) and sent: Switch(config)# access-list 1 permit 10.1.0.0 0.0.255.255 Switch(config)# class-map ipclass1 Switch(config-cmap)# match access-group 1 Switch(config-cmap)# exit Switch(config)# policy-map flow1t 28-48 Catalyst 2960 Switch Software Configuration Guide OL-8603-04
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