TP-Link TL-SL2428 TL-SL2428 V1 User Guide - Page 104

3

Map the DSCP priority to the

priority level

Required. Select DSCP priority and the corresponding

priority level.

4

Select a schedule mode

Required. Log on to the

Schedule Mode

page to

select a schedule mode.

9.1.4 Schedule Mode

On this page you can select a schedule mode for the switch. 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 will control the forwarding sequence of the packets according to the priority

queues and scheduling algorithms you set. On this switch, the priority levels are labeled as TC0,

TC1… TC3.

Choose the menu

QoS

→

DiffServ

→

Schedule Mode

to load the following page.

Figure 9-9 Schedule Mode

The following entries are displayed on this screen:



Schedule Mode Config

SP-Mode:

Strict-Priority Mode. In this mode, the queue with higher priority

will occupy the whole bandwidth. Packets in the queue with lower

priority are sent only when the queue with higher priority is empty.

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. The weight value ratio of TC0, TC1, TC2 and TC3 is

1:2:4:8.

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.

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.

9.2 Bandwidth Control

Bandwidth function, allowing you to control the traffic rate and broadcast flow on each port to

ensure network in working order, can be implemented on

Rate Limit

and

Storm Control

pages.

97

Section	Page
Package Contents	8
Chapter 1 About this Guide	9
1.1 Intended Readers	9
1.2 Conventions	9
1.3 Overview of This Guide	9
Chapter 2 Introduction	12
2.1 Overview of the Switch	12
2.2 Main Features	12
2.3 Appearance Description	12
2.3.1 Front Panel	12
2.3.2 Rear Panel	14
Chapter 3 Login to the Switch	15
3.1 Login	15
3.2 Configuration	15
Chapter 4 System	17
4.1 System Info	17
4.1.1 System Summary	17
4.1.2 Device Description	19
4.1.3 System Time	20
4.1.4 Daylight Saving Time	20
4.1.5 System IP	22
4.2 User Manage	23
4.2.1 User Table	23
4.2.2 User Config	23
4.3 System Tools	25
4.3.1 Config Restore	25
4.3.2 Config Backup	25
4.3.3 Firmware Upgrade	26
4.3.4 System Reboot	27
4.3.5 System Reset	27
4.4 Access Security	27
Chapter 5 Switching	30
5.1 Port	30
5.1.1 Port Config	30
5.1.2 Port Mirror	31
5.1.3 Port Security	34
5.1.4 Port Isolation	36
5.2 LAG	37
5.2.1 LAG Table	37
5.2.2 Static LAG	39
5.3 Traffic Monitor	40
5.3.1 Traffic Summary	40
5.3.2 Traffic Statistics	41
5.4 MAC Address	43
5.4.1 Address Table	43
5.4.2 Static Address	45
5.4.3 Dynamic Address	46
5.4.4 Filtering Address	48
Chapter 6 VLAN	50
6.1 802.1Q VLAN	51
6.1.1 VLAN Config	53
6.1.2 Port Config	55
6.2 Application Example for 802.1Q VLAN	57
Chapter 7 Spanning Tree	59
7.1 STP Config	64
7.1.1 STP Config	64
7.1.2 STP Summary	66
7.2 Port Config	67
7.3 MSTP Instance	69
7.3.1 Region Config	69
7.3.2 Instance Config	70
7.3.3 Instance Port Config	71
7.4 STP Security	73
7.4.1 Port Protect	73
7.4.2 TC Protect	76
7.5 Application Example for STP Function	76
Chapter 8 Multicast	80
8.1 IGMP Snooping	82
8.1.1 Snooping Config	83
8.1.2 Port Config	84
8.1.3 VLAN Config	85
8.1.4 Multicast VLAN	87
8.2 Multicast IP	90
8.2.1 Multicast IP Table	90
8.2.2 Static Multicast IP	91
8.3 Multicast Filter	92
8.3.1 IP-Range	93
8.3.2 Port Filter	94
8.4 Packet Statistics	95
Chapter 9 QoS	97
9.1 DiffServ	100
9.1.1 Port Priority	100
9.1.2 802.1P Priority	101
9.1.3 DSCP Priority	102
9.1.4 Schedule Mode	104
9.2 Bandwidth Control	104
9.2.1 Rate Limit	105
9.2.2 Storm Control	106
Chapter 10 SNMP	108
10.1 SNMP Config	110
10.1.1 Global Config	110
10.1.2 SNMP View	111
10.1.3 SNMP Group	112
10.1.4 SNMP User	113
10.1.5 SNMP Community	115
10.2 Notification	117
10.3 RMON	119
10.3.1 History Control	120
10.3.2 Event Config	120
10.3.3 Alarm Config	121
Chapter 11 Maintenance	124
11.1 System Monitor	124
11.1.1 CPU Monitor	124
11.1.2 Memory Monitor	125
11.2 Log	125
11.2.1 Log Table	126
11.2.2 Local Log	127
11.2.3 Remote Log	127
11.2.4 Backup Log	128
11.3 Device Diagnose	129
11.3.1 Cable Test	129
11.3.2 Loopback	130
11.4 Network Diagnose	130
11.4.1 Ping	131
11.4.2 Tracert	131
Appendix A: Specifications	133
Appendix B: Configuring the PCs	134

TP-Link TL-SL2428 TL-SL2428 V1 User Guide - Page 104

Schedule Mode, 9.2 Bandwidth Control

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