CoS Configuration Guidelines

To configure CoS properties, you can include the following statements at the [edit class-of-service] hierarchy level of the configuration:

 class-of-service { 
 	 input {
 	 	 fpc fpc-number {
 	 	 	 precedence-map map-name;
 	 	 }
 	 	 interfaces {
 	 	 	 interface-name {
 	 	 	 	 inet-precedence-map; 
 	 	 	 	 mpls-cos-map; 
 	 	 	 	 unit unit-number {
 	 	 	 	 	 output-queue queue-number;
 	 	 	 	 }
 	 	 	 }
 	 	 }
 	 	 precedence-map map-name {
 	 	 	 bits precedence-bit output-queue queue-number;
 	 	 }
 	 }
 	 output {
 	 	 drop-profile profile-name {
 	 	 	 stream-profile {
 	 	 	 	 fill-level fill-percentage drop-probability probability-percentage;
 	 	 	 }
 	 	 	 plp-set-queue-profile {
 	 	 	 	 fill-level fill-percentage drop-probability probability-percentage;
 	 	 	 }
 	 	 	 plp-clear-queue-profile {
 	 	 	 	 fill-level fill-percentage drop-probability probability-percentage;
 	 	 	 }
 	 	 }
 	 	 fpc fpc-number {
 	 	 	 drop-profile profile-name;
 	 	 }
 	 	 interfaces {
 	 	 	 interface-name {
 	 	 	 	 transmit-queues {
 	 	 	 	 	 output-queue queue-number buffer-percentage percentage; 
 	 	 	 	 }
 	 	 	 	 weighted-round-robin {
 	 	 	 	 	 output-queue queue-number weight percentage; 
 	 	 	 	 }
 	 	 	 }
 	 	 	 unit unit-number {
 	 	 	 	 precedence-rewrite {
 	 	 	 	 	 output-queue queue-number {
 	 	 	 	 	 	 plp-clear rewrite-bits precedence-bit;
 	 	 	 	 	 	 plp-set rewrite-bits precedence-bit;
 	 	 	 	 	 }
 	 	 	 	 }
 	 	 	 }
 	 	 }
 	 }
 	 policy {
 	 	 class class-name {
 	 	 	 classification-override {
 	 	 	 	 output-queue queue-number;
 	 	 	 }
 	 	 }
 	 }
 }

This chapter discusses the tasks to configure CoS:

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