Examples: Configuring up to Eight Forwarding Classes
Configure a one-to-one mapping between eight forwarding classes and eight queues.
For PICs restricted to four queues, map two forwarding classes to each queue.
[edit class-of-service]forwarding-classes {queue 0 be;queue 1 ef;queue 2 af;queue 3 nc;queue 4 ef1;queue 5 ef2;queue 6 af1;queue 7 nc1;}Mapping Two Forwarding Classes to Each Queue
[edit class-of-service]restricted-queues {forwarding-class be queue 0;forwarding-class be1 queue 0;forwarding-class ef queue 1;forwarding-class ef1 queue 1;forwarding-class af queue 2;forwarding-class af1 queue 2;forwarding-class nc queue 3;forwarding-class nc1 queue 3;}Defining Eight Classifiers
[edit class-of-service]classifiers {dscp dscp-table {forwarding-class ef {loss-priority low code-points [101000, 101001];loss-priority high code-points [101010, 101011];}forwarding-class af {loss-priority low code-points [010000, 010001];loss-priority high code-points [010010, 010011];}forwarding-class be {loss-priority low code-points [000000];}forwarding-class nc {loss-priority low code-points [111000];}forwarding-class ef1 {loss-priority low code-points [101100, 101101];loss-priority high code-points [101110];}forwarding-class af1 {loss-priority high code-points [101110];}forwarding-class ef2 {loss-priority low code-points [101111];}forwarding-class af2 {loss-priority low code-points [010000];}}}Adding Eight Schedulers to a Scheduler Map
Configure a custom scheduler map that applies globally to all interfaces, except those that are restricted to four queues.
[edit class-of-service]scheduler-maps {interface-global {forwarding-class be scheduler Q0;forwarding-class ef scheduler Q1;forwarding-class af scheduler Q2;forwarding-class nc scheduler Q3;forwarding-class ef1 scheduler Q4;forwarding-class ef2 scheduler Q5;forwarding-class af1 scheduler Q6;forwarding-class nc1 scheduler Q7;}}schedulers {Q0 {transmit-rate percent 25;buffer-size percent 25;priority low;drop-profile-map loss-priority any protocol both drop-default;}Q1 {buffer-size temporal 2000;priority strict-high;drop-profile-map loss-priority any protocol both drop-ef;}Q2 {transmit-rate percent 35;buffer-size percent 35;priority low;drop-profile-map loss-priority any protocol both drop-default;}Q3 {transmit-rate percent 5;buffer-size percent 5;drop-profile-map loss-priority any protocol both drop-default;}Q4 {transmit-rate percent 5;priority high;drop-profile-map loss-priority any protocol both drop-ef;}Q5 {transmit-rate percent 10;priority high;drop-profile-map loss-priority any protocol both drop-ef;}Q6 {transmit-rate remainder;priority low;drop-profile-map loss-priority any protocol both drop-default;}Q7 {transmit-rate percent 5;priority high;drop-profile-map loss-priority any protocol both drop-default;}}Configuring a Scheduler Map Applicable to an Interface Restricted to Four Queues
For PICs restricted to four queues, if you map multiple forwarding classes to a queue, the multiple forwarding classes must refer to the same scheduler.
[edit class-of-service]scheduler-maps {interface-restricted {forwarding-class be scheduler Q0;forwarding-class ef scheduler Q1;forwarding-class ef1 scheduler Q1;forwarding-class ef2 scheduler Q1;forwarding-class af1 scheduler Q2;forwarding-class af scheduler Q2;forwarding-class nc scheduler Q3;forwarding-class nc1 scheduler Q3;}}[edit class-of-service]restricted-queues {forwarding-class be queue 0;forwarding-class ef queue 1;forwarding-class ef1 queue 1;forwarding-class ef2 queue 1;forwarding-class af queue 2;forwarding-class af1 queue 2;forwarding-class nc queue 3;forwarding-class nc1 queue 3;}Configuring an IP Precedence Classifier and Rewrite Tables
[edit class-of-service]classifiers {inet-precedence inet-classifier {forwarding-class be {loss-priority low code-points 000;}forwarding-class af11 {loss-priority high code-points 001;}forwarding-class ef {loss-priority low code-points 010;}forwarding-class nc1 {loss-priority high code-points 011;}forwarding-class {loss-priority low code-points 100;}forwarding-class af12 {loss-priority high code-points 101;}forwarding-class ef1 {loss-priority low code-points 110;}forwarding-class nc2 {loss-priority high code-points 111;}}}exp exp-rw-table {forwarding-class be {loss-priority low code-point 000;}forwarding-class af11 {loss-priority high code-point 001;}forwarding-class ef {loss-priority low code-point 010;}forwarding-class nc1 {loss-priority high code-point 111;}forwarding-class be1 {loss-priority low code-point 100;}forwarding-class af12 {loss-priority high code-point 101;}forwarding-class ef1 {loss-priority low code-point 110;}forwarding-class nc2 {loss-priority low code-point 111;}}inet-precedence inet-rw-table {forwarding-class be {loss-priority low code-point 000;}forwarding-class af11 {loss-priority high code-point 001;}forwarding-class ef1 {loss-priority low code-point 010;}forwarding-class nc1 {loss-priority low code-point 111;}forwarding-class be1 {loss-priority low code-point 100;}forwarding-class af12 {loss-priority high code-point 101;}forwarding-class ef1 {loss-priority low code-point 111;}forwarding-class nc2 {loss-priority low code-point 110;}}