TP-Link TL-SG5412F User Manual

2.
WRR-Mode: Weight Round Robin Mode. In this mode, packets in all the queues are sent in
order based on the weight value for each queue and every queue can be assured of a certain
service time. The weight value indicates the occupied proportion of the resource. WRR queue
overcomes the disadvantage of SP queue that the packets in the queues with lower priority
can not get service for a long time. In WRR mode, though the queues are scheduled in order,
the service time for each queue is not fixed, that is to say, if a queue is empty, the next queue
will be scheduled. In this way, the bandwidth resources are made full use. The default weight
value ratio of TC0, TC1, TC2 and TC3 is 1:2:4:8.
Figure 9-5 WRR-Mode
3. SP+WRR-Mode: Strict-Priority + Weight Round Robin Mode. In this mode, this switch
provides two scheduling groups, SP group and WRR group. Queues in SP group and WRR
group are scheduled strictly based on strict-priority mode while the queues inside WRR group
follow the WRR mode. In SP+WRR mode, TC3 is in the SP group; TC0, TC1 and TC2 belong
to the WRR group and the weight value ratio of TC0, TC1 and TC2 is 1:2:4. In this way, when
scheduling queues, the switch allows TC3 to occupy the whole bandwidth following the SP
mode and the TC0, TC1 and TC2 in the WRR group will take up the bandwidth according to
their ratio 1:2:4.
4. Equ-Mode: Equal-Mode. In this mode, all the queues occupy the bandwidth equally. The
weight value ratio of all the queues is 1:1:1:1.
The QoS module is mainly for traffic control and priority configuration, including three submenus:
DiffServ, Bandwidth Control and Voice VLAN.
9.1 DiffServ
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.
This switch implements three priority modes based on port, on 802.1P and on DSCP, and supports
four queue scheduling algorithms. The port priorities are labeled as CoS0, CoS1… CoS7.
The DiffServ function can be implemented on Port Priority, Schedule Mode, 802.1P Priority and
DSCP Priority pages.
9.1.1 Port Priority
On this page you can configure the port priority.
Choose the menu QoS→DiffServ→Port Priority to load the following page.
11
7

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