Tp-Link TL-SL2428 [108/140] Chapter 10 snmp
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Chapter 10 SNMP
SNMP Overview
SNMP (Simple Network Management Protocol) has gained the most extensive application on the
UDP/IP networks. SNMP provides a management frame to monitor and maintain the network
devices. It is used for automatically managing the various network devices no matter the physical
differences of the devices. Currently, the most network management systems are based on SNMP.
SNMP is simply designed and convenient for use with no need of complex fulfillment procedures
and too much network resources. With SNMP function enabled, network administrators can easily
monitor the network performance, detect the malfunctions and configure the network devices. In
the meantime, they can locate faults promptly and implement the fault diagnosis, capacity planning
and report generating.
SNMP Management Frame
SNMP management frame includes three network elements: SNMP Management Station, SNMP
Agent and MIB (Management Information Base).
SNMP Management Station: SNMP Management Station is the workstation for running the
SNMP client program, providing a friendly management interface for the administrator to manage
the most network devices conveniently.
SNMP Agent: Agent is the server software operated on network devices with the responsibility of
receiving and processing the request packets from SNMP Management Station. In the meanwhile,
Agent will inform the SNMP Management Station of the events whenever the device status
changes or the device encounters any abnormalities such as restarting the device.
MIB: MIB is the set of the managed objects. MIB defines a few attributes of the managed objects,
including the names, the access rights, and the data types. Every SNMP Agent has its own MIB.
The SNMP Management station can read/write the MIB objects basing on its management right.
SNMP Management Station is the manager of SNMP network while SNMP Agent is the managed
object. The information between SNMP Management Station and SNMP Agent are exchanged
through SNMP (Simple Network Management Protocol). The relationship among SNMP
Management Station, SNMP Agent and MIB is illustrated in the following figure.
Figure 10-1 Relationship among SNMP Network Elements
SNMP Versions
This switch supports SNMP v3, and is compatible with SNMP 1 and SNMP v2c. The SNMP
versions adopted by SNMP Management Station and SNMP Agent should be the same.
Otherwise, SNMP Management Station and SNMP Agent can not communicate with each other
normally. You can select the management mode with proper security level according to your actual
application requirement.
101
Содержание
- Ce mark warning 2
- Copyright trademarks 2
- Fcc statement 2
- Safety information 3
- Package contents 8
- Chapter 1 about this guide 9
- Conventions 9
- Intended readers 9
- Overview of this guide 9
- Appearance description 12
- Chapter 2 introduction 12
- Front panel 12
- Main features 12
- Overview of the switch 12
- The following parts are located on the front panel of the switch 12
- Rear panel 14
- Chapter 3 login to the switch 15
- Configuration 15
- Chapter 4 system 17
- System info 17
- System summary 17
- Device description 19
- The following entries are displayed on this screen 19
- Daylight saving time 20
- System time 20
- The following entries are displayed on this screen 20
- Select a predefined dst configuration 21
- The following entries are displayed on this screen 21
- System ip 22
- The following entries are displayed on this screen 22
- User config 23
- User manage 23
- User table 23
- The following entries are displayed on this screen 24
- Config backup 25
- Config restore 25
- System tools 25
- The following entries are displayed on this screen 25
- Firmware upgrade 26
- The following entries are displayed on this screen 26
- Access security 27
- System reboot 27
- System reset 27
- The following entries are displayed on this screen 28
- Chapter 5 switching 30
- Port config 30
- Port mirror 31
- The following entries are displayed on this screen 32
- The following entries are displayed on this screen 33
- Port security 34
- The following entries are displayed on this screen 35
- Port isolation 36
- The following entries are displayed on this screen 36
- Lag table 37
- The following entries are displayed on this screen 38
- Static lag 39
- The following entries are displayed on this screen 39
- The following entries are displayed on this screen 40
- Traffic monitor 40
- Traffic summary 40
- Traffic statistics 41
- The following entries are displayed on this screen 42
- Address table 43
- Mac address 43
- The following entries are displayed on this screen 44
- Static address 45
- The following entries are displayed on this screen 45
- Dynamic address 46
- The following entries are displayed on this screen 47
- Filtering address 48
- The following entries are displayed on this screen 48
- Chapter 6 vlan 50
- Q vlan 51
- The following entries are displayed on this screen 53
- Vlan config 53
- The following entries are displayed on this screen 54
- Port config 55
- The following entries are displayed on this screen 55
- The following entries are displayed on this screen 56
- Application example for 802 q vlan 57
- Chapter 7 spanning tree 59
- Stp config 64
- The following entries are displayed on this screen 65
- Stp summary 66
- Port config 67
- The following entries are displayed on this screen 68
- Mstp instance 69
- Region config 69
- Instance config 70
- The following entries are displayed on this screen 70
- Instance port config 71
- The following entries are displayed on this screen 71
- The following entries are displayed on this screen 72
- Port protect 73
- Stp security 73
- The following entries are displayed on this screen 75
- Application example for stp function 76
- Tc protect 76
- The following entries are displayed on this screen 76
- Chapter 8 multicast 80
- Igmp snooping 82
- Snooping config 83
- Port config 84
- The following entries are displayed on this screen 84
- The following entries are displayed on this screen 85
- Vlan config 85
- The following entries are displayed on this screen 86
- Multicast vlan 87
- The following entries are displayed on this screen 88
- Application example for multicast vlan 89
- Multicast ip 90
- Multicast ip table 90
- Static multicast ip 91
- The following entries are displayed on this screen 91
- Multicast filter 92
- The following entries are displayed on this screen 92
- Ip range 93
- The following entries are displayed on this screen 93
- Port filter 94
- The following entries are displayed on this screen 94
- Packet statistics 95
- The following entries are displayed on this screen 96
- Chapter 9 qos 97
- Diffserv 100
- Port priority 100
- The following entries are displayed on this screen 100
- P priority 101
- The following entries are displayed on this screen 101
- Dscp priority 102
- The following entries are displayed on this screen 103
- Bandwidth control 104
- Schedule mode 104
- The following entries are displayed on this screen 104
- Rate limit 105
- The following entries are displayed on this screen 105
- Storm control 106
- The following entries are displayed on this screen 106
- Chapter 10 snmp 108
- Global config 110
- Snmp config 110
- The following entries are displayed on this screen 110
- Snmp view 111
- The following entries are displayed on this screen 111
- Snmp group 112
- The following entries are displayed on this screen 112
- Snmp user 113
- The following entries are displayed on this screen 114
- Snmp community 115
- The following entries are displayed on this screen 115
- Notification 117
- The following entries are displayed on this screen 118
- Event config 120
- History control 120
- The following entries are displayed on this screen 120
- Alarm config 121
- The following entries are displayed on this screen 121
- The following entries are displayed on this screen 122
- Chapter 11 maintenance 124
- Cpu monitor 124
- System monitor 124
- Memory monitor 125
- Log table 126
- The following entries are displayed on this screen 126
- Local log 127
- Remote log 127
- The following entries are displayed on this screen 127
- Backup log 128
- The following entries are displayed on this screen 128
- Cable test 129
- Device diagnose 129
- The following entries are displayed on this screen 129
- The following entry is displayed on this screen 129
- Loopback 130
- Network diagnose 130
- The following entries are displayed on this screen 130
- The following entries are displayed on this screen 131
- Tracert 131
- The following entries are displayed on this screen 132
- Appendix a specifications 133
- Appendix b configuring the pcs 134
- Appendix c glossary 137
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