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TP-Link TL-SL2452 TL-SL2452 V1 User Guide 1910010972 - Page 148

Device Diagnostics

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The following entries are displayed on this screen:  Log Host Index: Displays the index of the log host. The switch supports 4 log hosts. Host IP: Configure the IP for the log host. UDP Port: Displays the UDP port used for receiving/sending log information. Here we use the standard port 514. Severity: Specify the severity level of the log information sent to each log host. Only the log with the same or smaller severity level value will be sent to the corresponding log host. Status: Enable/Disable the log host. Note: The Log Server software is not provided. If necessary, please download it on the Internet. 12.2.4 Backup Log Backup Log feature enables the system logs saved in the switch to be output as a file for device diagnosis and statistics analysis. When a critical error results in the breakdown of the system, you can export the logs to get some related important information about the error for device diagnosis after the switch is restarted. Choose the menu Maintenance→Log→Backup Log to load the following page. Figure 12-6 Backup Log The following entry is displayed on this screen:  Backup Log Backup Log: Click the Backup Log button to save the log as a file to your computer. Note: It will take a few minutes to backup the log file. Please wait without any operation. 12.3 Device Diagnostics This switch provides Cable Test and Loopback functions for device diagnostics. 12.3.1 Cable Test Cable Test functions to test the connection status of the cable connected to the switch, which facilitates you to locate and diagnose the trouble spot of the network. 141

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	16
3.1 Login	16
3.2 Configuration	16
Chapter 4 System	18
4.1 System Info	18
4.1.1 System Summary	18
4.1.2 Device Description	20
4.1.3 System Time	20
4.1.4 Daylight Saving Time	21
4.1.5 System IP	23
4.2 User Management	24
4.2.1 User Table	24
4.2.2 User Config	24
4.3 System Tools	26
4.3.1 Config Restore	26
4.3.2 Config Backup	26
4.3.3 Firmware Upgrade	27
4.3.4 System Reboot	28
4.3.5 System Reset	28
4.4 Access Security	28
4.4.1 Access Control	28
4.4.2 SSL Config	30
4.4.3 SSH Config	31
Chapter 5 Switching	37
5.1 Port	37
5.1.1 Port Config	37
5.1.2 Port Mirror	38
5.1.3 Port Security	40
5.1.4 Port Isolation	42
5.1.5 Loopback Detection	43
5.2 LAG	44
5.2.1 LAG Table	45
5.2.2 Static LAG	46
5.2.3 LACP Config	47
5.3 Traffic Monitor	49
5.3.1 Traffic Summary	49
5.3.2 Traffic Statistics	50
5.4 MAC Address	51
5.4.1 Address Table	52
5.4.2 Static Address	53
5.4.3 Dynamic Address	54
5.4.4 Filtering Address	56
5.5 DHCP Filtering	57
Chapter 6 VLAN	61
6.1 802.1Q VLAN	62
6.1.1 VLAN Config	63
6.2 Application Example for 802.1Q VLAN	65
Chapter 7 Spanning Tree	67
7.1 STP Config	72
7.1.1 STP Config	72
7.1.2 STP Summary	74
7.2 Port Config	74
7.3 MSTP Instance	76
7.3.1 Region Config	76
7.3.2 Instance Config	77
7.3.3 Instance Port Config	78
7.4 STP Security	80
7.4.1 Port Protect	80
7.4.2 TC Protect	82
7.5 Application Example for STP Function	83
Chapter 8 Multicast	87
8.1 IGMP Snooping	89
8.1.1 Snooping Config	90
8.1.2 Port Config	91
8.1.3 VLAN Config	92
8.1.4 Multicast VLAN	94
8.2 Multicast IP	97
8.2.1 Multicast IP Table	97
8.2.2 Static Multicast IP	98
8.3 Multicast Filter	99
8.3.1 IP-Range	99
8.3.2 Port Filter	100
8.4 Packet Statistics	101
Chapter 9 QoS	103
9.1 DiffServ	106
9.1.1 Port Priority	106
9.1.2 802.1P/CoS Mapping	107
9.1.3 DSCP Priority	108
9.1.4 Schedule Mode	109
9.2 Bandwidth Control	110
9.2.1 Rate Limit	110
9.2.2 Storm Control	111
9.3 Voice VLAN	113
9.3.1 Global Config	115
9.3.2 Port Config	115
9.3.3 OUI Config	116
Chapter 10 ACL	119
10.1 ACL Config	119
10.1.1 ACL Summary	119
10.1.2 ACL Create	119
10.1.3 MAC ACL	120
10.1.4 Standard-IP ACL	121
10.1.5 Extend-IP ACL	121
10.2 Policy Config	122
10.2.1 Policy Summary	122
10.2.2 Policy Create	123
10.2.3 Action Create	123
10.3 Policy Binding	124
10.3.1 Binding Table	124
10.3.2 Port Binding	125
10.3.3 VLAN Binding	125
10.4 Application Example for ACL	126
Chapter 11 SNMP	129
11.1 SNMP Config	131
11.1.1 Global Config	131
11.1.2 SNMP View	132
11.1.3 SNMP Group	132
11.1.4 SNMP User	134
11.1.5 SNMP Community	136
11.2 Notification	138
11.3 RMON	139
11.3.1 History Control	140
11.3.2 Event Config	141
11.3.3 Alarm Config	141
Chapter 12 Maintenance	144
12.1 System Monitor	144
12.1.1 CPU Monitor	144
12.1.2 Memory Monitor	145
12.2 Log	145
12.2.1 Log Table	146
12.2.2 Local Log	146
12.2.3 Remote Log	147
12.2.4 Backup Log	148
12.3 Device Diagnostics	148
12.3.1 Cable Test	148
12.3.2 Loopback	149
12.4 Network Diagnostics	150
12.4.1 Ping	150
12.4.2 Tracert	151
Appendix A: Specifications	153
Appendix B: Configuring the PCs	154