Figure 1-6 Range Of Qos Discard Mode Control; Table 1-65 Features Of Constituting Definition Of Filter Flow Information By Input Form - Hitachi GR2000 Series Configuration Commands

Hitachi Gigabit Router GR2000 Series Enhanced Version Configuration Commands, Vol. 2
3. Queue control
When there is a backlog on the output queue, packets remaining on the queue
are transmitted or discarded depending on priority. The QoS discard mode
command (qos-discard-mode) sets queue size and enables queuing by priority
class.
Flow Control (input)
Priority Determination
TOS Rewrite
Contracted Bandwidth
Monitoring
: Control range of this command

Figure 1-6 Range of QoS Discard Mode Control

4. Flow control
The flow-control function identifies incoming IP packets by their flow-control
settings, determines priority, rewrites TOS, and manages reserved bandwidths.
The flow control includes two input form for configuration definition. Features of
each input form are shown in Table 1-65.

Table 1-65 Features of Constituting Definition of Filter Flow Information by Input Form

Item
Number of entry(*1)
Inputting form
Function use, and unused
unit
Operation command
Indication unit for qos ip
flow.
Vacant entry indication
*1: Total value with entries of filters.
For the configuration definition flow qos, please refer to Subsection 1.1.7 "flow
qos". The configuration definitions qos-ip-list, qos-list-group, and qos-ip are
described below.
The QoS IP list (qos-ip-list) command generates lists defining flow detection
conditions and the various types of flow control active in flow detection. The QoS
IP list group (qos-ip-list-group) command assigns a decision order to lists, allowing
1-132
1.2.4 qos-discard-mode
Flow Control (output)
qos-ip-list, qos-ip-list-group,
qos-ip
1024 entry/device
Input three commands to define one
list. Effective in defining the same
flow control in multiple number of
input/output interfaces.
Device unit
Device unit and list unit
Supported.
Queue Control
Priority Determination
TOS Rewrite
Contracted Bandwidth
Monitoring
Constituting Definition Inputting Form
flow filter
10000 entry/device 2000 entry/RP
Input one command to define one
list. Effective in inputting a number of
entries.
Device unit, and input/output
interface unit
Device unit and input/output
interface unit
Unsupported.
Sets from qos-discard-mode
Sets from qos-discard-lis
Transmission Control
Interface
(LINE,DLCI, etc.)
GR2K-GA-0014
Ver. 07-02