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Maintenance

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Chapter 12 Maintenance Maintenance module, assembling the commonly used system tools to manage the switch, provides the convenient method to locate and solve the network problem. （1） System Monitor: Monitor the utilization status of the memory and the CPU of switch. （2） Log: View the configuration parameters of the switch and find out the errors via the Logs. （3） Device Diagnostics: Test whether the ports of the switch and its peer device are available. （4） Network Diagnostics: Test whether the destination device is reachable and detect the route hops from the switch to the destination device. 12.1 System Monitor System Monitor functions to display the utilization status of the memory and the CPU of switch via the data graph. The CPU utilization rate and the memory utilization rate should fluctuate stably around a specific value. If the CPU utilization rate or the memory utilization rate increases markedly, please detect whether the network is being attacked. The System Monitor function is implemented on the CPU Monitor and Memory Monitor pages. 12.1.1 CPU Monitor Choose the menu Maintenance→System Monitor→CPU Monitor to load the following page. Figure 12-1 CPU Monitor Click the Monitor button to enable the switch to monitor and display its CPU utilization rate every four seconds. 137

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

Match case Limit results 1 per page

Chapter 12 Maintenance

Maintenance module, assembling the commonly used system tools to manage the switch,

provides the convenient method to locate and solve the network problem.

（

）

System Monitor: Monitor the utilization status of the memory and the CPU of switch.

（

）

Log: View the configuration parameters of the switch and find out the errors via the Logs.

（

）

Device Diagnostics: Test whether the ports of the switch and its peer device are available.

（

）

Network Diagnostics: Test whether the destination device is reachable and detect the

route hops from the switch to the destination device.

12.1 System Monitor

System Monitor functions to display the utilization status of the memory and the CPU of switch via

the data graph. The CPU utilization rate and the memory utilization rate should fluctuate stably

around a specific value. If the CPU utilization rate or the memory utilization rate increases

markedly, please detect whether the network is being attacked.

The

System Monitor

function is implemented on the

CPU Monitor

and

Memory Monitor

pages.

12.1.1 CPU Monitor

Choose the menu

Maintenance

→

System Monitor

→

CPU Monitor

to load the following page.

Figure 12-1 CPU Monitor

Click the

Monitor

button to enable the switch to monitor and display its CPU utilization rate every

four seconds.

137