TP-Link TL-SG5412F User Manual

Chapter 9 QoS
QoS (Quality of Service) functions to provide different quality of service for various network
applications and requirements and optimize the bandwidth resource distribution so as to provide a
network service experience of a better quality.
 QoS
This switch classifies the ingress packets, maps the packets to different priority queues and then
forwards the packets according to specified scheduling algorithms to implement QoS function.
Figure 9-1 QoS function
 Traffic classification: Identifies packets conforming to certain characters according to certain
rules.
 Map: The user can map the ingress packets to different priority queues based on the priority
modes. This switch implements three priority modes based on port, on 802.1P and on DSCP.
 Queue scheduling algorithm: When the network is congested, the problem that many packets
compete for resources must be solved, usually in the way of queue scheduling. The switch
supports four schedule modes: SP, WRR, SP+WRR and Equ.
 Priority Mode
This switch implements three priority modes based on port, on 802.1P and on DSCP. By default, the
priority mode based on port is enabled and the other two modes are optional.
1. Port Priority
Port priority is just a property of the port. After port priority is configured, the data stream will be
mapped to the egress queues according to the CoS of the port and the mapping relationship
between CoS and queues.
2. 802.1P Priority
Figure 9-2 802.1Q frame
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TP-Link TL-SG5412F Specifications

General

MAC address table	8000 entries
Jumbo frames support	Yes
Maximum data transfer rate	1 Gbit/s
Supported data transfer rates	10, 100, 1000Mbps
Fan	0
Wi-Fi	No
Diagnostics	VCT
Management platform	SNMP, RMON, WEB/CLI/Telnet
Authentication method	802.1X, Radius
Packet transfer speed	17.99Mpps
Connectivity technology	Wired
Networking standards	IEEE 802.1D, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1s, IEEE 802.1w, IEEE 802.1x, IEEE 802.3, IEEE 802.3ab, IEEE 802.3ad, IEEE 802.3i, IEEE 802.3u, IEEE 802.3x, IEEE 802.3z
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Copper ethernet cabling technology	1000BASE-T, 100BASE-TX, 10BASE-T
DHCP features	DHCP client
Security algorithms	SSH, SSL/TLS
Switch type	Managed
Switch layer	L2
Console port	RJ-45
Fiber optic connector	SFP
SFP/SFP+ slots quantity	12
Basic switching RJ-45 Ethernet ports quantity	4
Fiber ethernet cabling technology	100BASE-FX
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Stackable	-
Form factor	1U
Certification	CE, FCC
Product color	Black
Compatible operating systems	Windows 98SE, NT, 2000, XP, Vista, Windows 7\\r MAC OS\\r NetWare\\r UNIX\\r Linux
Storage temperature (T-T)	-40 - 70 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 90 %
Operating relative humidity (H-H)	10 - 90 %

Weight and Dimensions

Depth	260 mm
Width	440 mm
Height	44 mm