Table 1-101 Default Length Of Each Queue - Hitachi GR2000 Series Configuration Commands

Table 1-100 Parameters for each queuing mode
Item
4WFQ Queue mode
Maximum send
bandwidth
Queue length
(*1) If queue length is not set in each queue, default 0 is assigned. Table 1-101, Default length of each queue,
indicates the default length of each queue.

Table 1-101 Default length of each queue

Queue number
It is possible to change the threshold at which discard begins in NE1G-2D in two stages. The discard
threshold is set by the queue length of shaper send information. Correspondence between packet
priority and discard threshold is indicated below.
* High priority packets (*1): Discard if queued packets exceed queue length
* Low priority packets (*2): Discard if queued packets exceed one-half the queue length
(*1): Packets in which 1 is the lowest bit of user priority
(*2): Packets in which 0 is the lowest bit of user priority
Examples
1. Setting parameters:
Setting VLAN1 priority control in outbound priority control
GR2K-GA-0014
Ver. 07-02
Parameter
4wfq
<Rate>
<Length>
Default queue length
1
2
3
4
Supported
specifications
1000BASE-SX
Description
1000BASE-LX
1000BASE-LH
NEB1G-2D
4WFQ Sets weighted fair queuing (4WFQ).
1 to 100% Sets maximum send bandwidth for
each queue.
0 to 4000(*1) Set length of each queue
400
300
250
200
Filtering/QoS Information
1-215