Hitachi GR2000 Series manual Quality of Service QoS Objects, Transmission control

Filtering/QoS Information

1.2Quality of Service (QoS) Objects

This section describes the parameters and configuration commands that define QoS. QoS control enables transmission of IP packets by priority, with highest-priority packets transmitted first. The following is a brief description of each component of the overall QoS control mechanism, with associated configuration commands displayed for each block.

1. QoS enable/disable

QoS information (qos) specifies whether QoS is functional or nonfunctional.

1.2.1 qos (QoS information)

Defines using and unusing of each control.

Queue Control

Flow Control (input)

Flow Control (output)

Transmission Control

Priority Determination

Priority Determination

TOS Rewrite

FlowDetection

TOS Rewrite

RouteSearch

FlowDetection

Contracted Bandwidth

Contracted Bandwidth

Interface

Monitoring

Monitoring

(LINE,DLCI, etc.)

: Control range of this command

Figure 1-4 Control Range of QoS Information

2.

Transmission control

Transmission￿

control determines the output queue mode, thereby controlling the

precedence of packets on the interface output queue. There are three queue modes: priority, round-robin, and bandwidth. The QoS queue attribute command (qos-queue-list)generates interface output queue lists; the QoS interface command (qos-interface) applies the queue list for each interface.

1.2.2 qos-queue-list

￿1.2.3 qos-interface

Sets from qos-queue-list.

Flow Control (input)		Route Search	Flow Control (output)		Queue Control	Transmission Control
Flow Detection	Priority Determination		Flow Detection	Priority Determination
	TOS Rewrite			TOS Rewrite
	Contracted Bandwidth			Contracted Bandwidth		Interface
	Monitoring			Monitoring		(LINE,DLCI, etc.)

Sets from qos-interface.

: Control range of this command

Figure 1-5 Range of QoS Attribute and Qos Interface Control

GR2K-GA-0014 1-131

Ver. 07-02