Cisco 7609-S Software Configuration Guide - Page 752

Configuring PFC3BXL or PFC3B Mode MPLS QoS Chapter 42 Configuring PFC3BXL or PFC3B Mode MPLS QoS • You optionally can use the set mpls experimental imposition command with the IP precedence, DSCP field, or QoS IP ACL to set the value of the MPLS EXP field on all imposed label entries. • When imposing labels onto the received IP traffic with the PFC3BXL or PFC3B, you can mark the EXP field using the set mpls experimental imposition command. For more information on this command, see the Cisco IOS Switching Services Command Reference, Release 12.3 located at this URL: http://www.cisco.com/en/US/docs/ios/mpls/command/reference/mp_s1.html#set_mpls_experimental_i mposition Configuring a Policy Map Using the Police Command Policing is a function in the PFC3BXL or PFC3B hardware that provides the ability to rate limit a particular traffic class to a specific rate. The PFC3BXL or PFC3B supports aggregate policing and microflow policing. Aggregate policing meters all traffic that ingresses into a port, regardless of different source, destination, protocol, source port, or destination port. Microflow policing meters all traffic that ingresses into a port, on a per flow (per source, destination, protocol, source port, and destination port). For additional information on aggregate and microflow policing, see the "Policers" section on page 41-20. To configure traffic policing, use the police command. For information on this command, see the Cisco IOS Master Command List, Release 12.2SX. Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Command Purpose Router(config)# policy-map policy_name Creates a policy map. Router(config-pmap)# class-map name [match-all | match-any] Accesses the QoS class map configuration mode to configure QoS class maps. Router(config-pmap-c)# police {aggregate name} Adds the class to a shared aggregate policer. Router(config-pmap-c)# police bps burst_normal burst_max conform-action action exceed-action action violate-action action Creates a per-class-per-interface policer. Router(config-pmap-c)# police flow {bps [burst_normal] Creates an ingress flow policer. (Not supported in | [conform-action action] [exceed-action action] egress policy.) Router(config-pmap-c)# exit Exits class-map configuration mode. This is an example of creating a policy map with a policer: Router(config)# policy-map ip2tag Router(config-pmap)# class iptcp Router(config-pmap-c)# no set mpls exp topmost 3 Router(config-pmap-c)# police 1000000 1000000 c set-mpls-exp? set-mpls-exp-imposition-transmit Router(config-pmap-c)# police 1000000 1000000 c set-mpls-exp-imposit 3 e d Router(config-pmap-c)# exit Router(config-pmap)# exit Router(config)# interface fastethernet 3/27 Router(config-if)# ser in ip2tag Router(config-if)# 42-26 Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX OL-4266-08