TP-Link TL-SG1024DE User Manual

User Guide 62
Configuring QoS Configuring Basic QoS
2
Configuring Basic QoS
Configuration Guidelines
Select the QoS mode according to your network requirements. Three QoS modes are
supported on the switch: Port Based, 802.1P Based and DSCP Based.

Port Based
The port based QoS mode supports four priority queues, which are labeled as 1 (Lowest), 2
(Normal), 3 (Medium) and 4 (Highest).
In this mode, the switch prioritizes packets according to their ingress ports, regardless of
the packet field or type.

802.1P Based
802.1P defines the first three bits in 802.1Q Tag as PRI field. The PRI values are from 0 to
7. The tagged packets are mapped to 4 priority levels based on the PRI value (Lowest=0, 1;
Normal=2, 3; Medium=4, 5; Highest=6, 7).
In this mode, the switch only prioritizes packets with VLAN tag, regardless of the IP header
of the packets.

DSCP/802.1P Based
DSCP priority determines the priority of packets based on the ToS (Type of Service) field
in their IP header. RFC2474 re-defines the ToS field in the IP packet header as DS field.
The first six bits of the DS field is used to represent DSCP priority. The DSCP values are
from 0 to 63. The IP packets are mapped to 4 priority levels based on the DSCP value
(Lowest=0-15; Normal=16-31; Medium=32-47; Highest=48-63).
In this mode, the switch prioritizes packets with IP header based on DSCP priority first.
Then, the switch prioritizes packets with VLAN tag but without IP header base on the PRI
field. Finally, the switch prioritizes packets without VLAN tag or IP header based on port
priority.

TP-Link TL-SG1024DE Specifications

General

Switch type	Managed
Switch layer	L2
Quality of Service (QoS) support	Yes
Installed SFP modules quantity	0
Basic switching RJ-45 Ethernet ports type	Gigabit Ethernet (10/100/1000)
Basic switching RJ-45 Ethernet ports quantity	24
10G support	No
Number of VLANs	32
Networking standards	IEEE 802.1Q, IEEE 802.1p, IEEE 802.3, IEEE 802.3ab, IEEE 802.3u, IEEE 802.3x
Virtual LAN features	Port-based VLAN, Tagged VLAN
Cable types supported	Cat3, Cat5, Cat6
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Jumbo frames	9216
Forwarding rate	35.7 Mpps
Number of queues	4
MAC address table	8000 entries
Packet buffer memory	0.512 MB
Power source	AC
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (max)	14.86 W
Stackable	-
Form factor	1U
Certification	FCC, CE, RoHS
Product color	Black
Heat dissipation	114.37 BTU/h
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 %
Compatible operating systems	Windows 98SE, NT, 2000, XP, Vista, Windows 7, Windows 8, MAC OS, NetWare, UNIX, Linux
Package type	Box
Package depth	400 mm
Package width	250 mm
Package height	80 mm
Package weight	2020 g
Harmonized System (HS) code	85176990

Weight and Dimensions

Depth	180 mm
Width	294 mm
Height	44 mm