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TP-Link TL-SL2218 TL-SL2218 V1 User Guide - Page 132

Loopback, Status, Length, Error, Internal

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Pair: Status: Length: Error: Displays the Pair number. Displays the connection status of the cable connected to the port. The test results of the cable include normal, close, open, short, impedance or unknown. If the connection status is normal, here displays the length range of the cable. If the connection status is close, open or impedance, here displays the error length of the cable. Note: 1. The Length displayed here is the length of pair cable not that of the physical cable. 2. The test result is just for your reference. 11.3.2 Loopback Loopback test function, looping the sender and the receiver of the signal, is used to test whether the port of the switch is available as well as to check and analyze the physical connection status of the port to help you locate and solve network malfunctions. Choose the menu Maintenance→Device Diagnostics→Loopback to load the following page. Figure 11-8 Loopback The following entries are displayed on this screen: ¾ Loopback Type Internal: Select Internal to test whether the port is available. External: Select External to test whether the device connected to the port of the switch is available 125

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 Management	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	91
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	105
9.2.1 Rate Limit	105
9.2.2 Storm Control	107
Chapter 10 SNMP	109
10.1 SNMP Config	111
10.1.1 Global Config	111
10.1.2 SNMP View	112
10.1.3 SNMP Group	113
10.1.4 SNMP User	115
10.1.5 SNMP Community	116
10.2 Notification	118
10.3 RMON	120
10.3.1 History Control	121
10.3.2 Event Config	122
10.3.3 Alarm Config	123
Chapter 11 Maintenance	125
11.1 System Monitor	125
11.1.1 CPU Monitor	125
11.1.2 Memory Monitor	126
11.2 Log	127
11.2.1 Log Table	128
11.2.2 Local Log	129
11.2.3 Remote Log	129
11.2.4 Backup Log	130
11.3 Device Diagnostics	131
11.3.1 Cable Test	131
11.3.2 Loopback	132
11.4 Network Diagnostics	133
11.4.1 Ping	133
11.4.2 Tracert	134
Appendix A: Specifications	135
Appendix B: Configuring the PCs	136