例: 転送クラスの設定
デフォルトでは、すべてのプラットフォームで、転送クラスの概要 に示すように、4 つの出力キューが 4 つの FC にマッピングされます。複数ジュニパーネットワークスでは、最大 8 個の FCS と 8 個のキューを設定できます。
最大 8 個の FCSを設定するには、 [サービス クラス転送クラスの編集] 階層レベルに queue ステートメントを含める:
[edit class-of-service forwarding-classes] queue queue-number class-name;
出力キュー番号は 0~7 にできます。転送クラスは、出力キューと 1 対 1 でマップする必要があります。キュー 0~7 のデフォルトのスケジューラー伝送レートとバッファー サイズの割合は、それぞれ 95、0、0、5、0、0、0、0 です。
たとえば、8 個の FCS と 8 個のキューの間に 1 対 1 のマッピングを設定するには、次の設定を使用します。
[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;
}
8 つの分類子の定義
[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 nc1 {
loss-priority low code-points [111001];
}
}
}
スケジューラ マップへの 8 個のスケジューラの追加
4 つのキューに制限されているインターフェイスを除くすべてのインターフェイスにグローバルに適用するカスタム スケジューラ マップを設定します。
[edit class-of-service]
scheduler-maps {
sched {
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;
}
}
IP Precedence 分類子と書き換えテーブルの設定
[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 be1 {
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 ef {
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 110;
}
forwarding-class nc2 {
loss-priority low code-point 111;
}
}
転送クラスIDPを使用したルーティング ポリシーの設定
IP パケットの DSCP 値IDP書き換えるアクションとして、転送クラスを使用して IDP ポリシーを設定します。
[edit class-of-service]
security idp idp-policy policy_name rulebase-ips rule rule_name {
then {
action {
class-of-service {
forwarding-class forwarding-class-name;
dscp-code-point value;
}
}
}
}