D-Link xStack DGS-3120 Series Reference Guide

xStack® DGS-3120 Series Layer 3 Managed Gigabit Ethernet Switch Web UI Reference Guide
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Figure 6-12 QoS Scheduling Mechanism
The following parameters can be configured:
Parameter Description
Unit
Select the unit you wish to configure. (EI and SI Mode Only)
From Port / To Port
Enter the port or port list you wish to configure.
Scheduling Mechanism Strict – The highest class of service is the first to process traffic. That is, the highest
class of service will finish before other queues empty.
Weighted Round Robin – Use the weighted round-robin algorithm to handle
packets in an even distribution in priority classes of service.
Click the Apply button to accept the changes made.
NOTE: The settings you assign to the queues, numbers 0-7, represent the IEEE 802.1p priority
tag number. Do not confuse these settings with port numbers.
WRED
WRED Port Settings
This window is used to configure the WRED state and its port settings.
To view the following window, click QoS > WRED > WRED Port Settings, as shown below:

D-Link xStack DGS-3120 Series Specifications

General

MAC Address Table	16K entries
Ports	10/100/1000BASE-T ports
VLANs	4094
Jumbo Frame	Up to 9KB
Power Supply	Internal power supply (depending on model)
Power over Ethernet (PoE)	No
Layer 3 Features	RIP
Quality of Service (QoS)	8 queues per port, DiffServ
Security Features	ACLs
Management	Web-based, CLI, SNMP
Operating Temperature	0°C to 40°C
Storage Temperature	-40°C to 70°C
SFP Ports	Combo 10/100/1000BASE-T/SFP ports and/or dedicated SFP/SFP+ ports (depending on model)