Cisco IOS Wide-Area Networking Configuration Guide - Free Books

To configure class-based shaping, configure the match qos-group and random-detect discard-classvalues according to the incoming IP precedence and DSCP values from packets received on thebackbone-facing ingress interface. Use these values to define traffic classes on the customer-facingegress interface.class-map match-any match_prec1match ip precedence 1class-map match-any match_prec2match ip precedence 2class-map match-any match_prec3match ip precedence 3!class-map match-all match_qos3match qos-group 3!class-map match-any match_qos12match qos-group 1match qos-group 2!policy-map customer_egress_policyclass match_qos3bandwidth percent 5shape average 160000000class match_qos12shape average 64000000random-detect discard-class-basedrandom-detect discard-class 1 500 packets 1000 packetsrandom-detect discard-class 2 1000 packets 2000 packetsbandwidth percent 10class class-defaultshape average 64000000queue-limit 1000 packetsbandwidth percent 1!policy-map backbone_ingress_policyclass match_prec1set qos-group 1set discard-class 1class match_prec2set qos-group 2set discard-class 2class match_prec3set qos-group 3set discard-class 3class class-defaultset qos-group 5set discard-class 5L2TPv3 Customer-Facing ISE/E5 Interfaceinterface POS0/0service-policy output customer_egress_policyframe-relay interface-dlci 100 switchedclass fr_100L2TPv3 Backbone-Facing ISE/E5 Interfaceinterface POS1/0service-policy input backbone_ingress_policy106