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9033060 SNMP Management 87
6. SNMP MANAGEMENT
The SNMP Protocol
SNMP (Simple Network Management Protocol) is a communication
protocol designed specifically for the purpose of managing devices or
other elements on a network. Network equipment commonly managed
with SNMP includes hubs, switches, routers, and host computers. SNMP
is typically used to configure these types of devices for proper operation
in their network environment, as well as to monitor them to evaluate their
performance and detect potential problems.
Managed entities supporting SNMP typically contain software, which runs
locally on the device and is referred to as an agent. In Figure 6-1, software
in an ELH100-24TX hub functions as an agent, monitoring and controlling
the functionality of the hub.
Figure 6-1. ELH100-12/24TX Hubs Managed by an
SNMP Management Workstation
A defined set of variables, referred to as managed objects, is maintained
by the agent and used to manage the device. These objects are defined
in a Management Information Base (MIB) which allows for a standard
presentation of the information controlled by the agent over the network.
The software used to access the information maintained by the SNMP
agents across a network is referred to as the SNMP Manager, and
typically runs on a workstation.
The SNMP manager software uses a MIB specification, equivalent to that
which the agent maintains, to read and write objects controlled by the
agent for purposes of configuring and monitoring the device. SNMP
defines the format of the MIB specifications and the protocol used to
access this information.
- SmartSTACK 1
- ELH100-12/24TX 1
- FASTETHERNETHUB 1
- FCC NOTICE 4
- INDUSTRY CANADA NOTICE 4
- VCCI NOTICE 4
- CABLETRON SYSTEMS, INC 5
- PROGRAM LICENSE AGREEMENT 5
- CABLETRON SYSTEMS LIMITED 9
- 9033060 Table Of Contents xi 13
- Audience 17
- Conventions 17
- Organization 18
- 1. PRODUCT OVERVIEW 19
- Features 20
- • Network Management: 21
- • Reliability: 21
- • Software: 21
- • LED Indicators: 21
- Front Panel 22
- Optional Modules 23
- Activity 24
- Full/Half 24
- Collision 24
- Rear Panel 25
- Feature Summaries 25
- 9033060 Product Overview 9 27
- Application Example 28
- 9033060 Product Overview 11 29
- 2. INSTALLATION 31
- Mounting the Hub in a Rack 33
- 9033060 Installation 17 35
- Using a Switch/Media Module 36
- 9033060 Installation 19 37
- In-Band Connections 38
- Agent Module 39
- Powering the Hub 40
- Network Cable Requirements 41
- 10Base-T/100Base-TX Ports 42
- 100Base-FX Fiber Ports 43
- Overview 45
- User Access 46
- Factory Defaults 46
- Menu Hierarchy 47
- Main Menu 48
- System Information Menu 49
- System Configuration Menu 51
- SNMP Configuration Menu 53
- SNMP Communities 54
- SNMP Trap Destinations 55
- Hub Configuration Menus 56
- Hub Configuration 57
- SNMP Agent 57
- Switch Module 58
- Port Configuration Menu 59
- Backup Port Control Menu 61
- TFTP Download Menu 62
- XMODEM Download Menu 63
- User Password Menu 64
- Console Configuration Menu 65
- Hub Statistics Menu 66
- Port Statistics Menu 68
- Common Tasks 71
- Setting Password Protection 71
- Assigning an IP Address 72
- Connecting via Telnet 73
- Viewing Hub Statistics 74
- Downloading Via TFTP 75
- Configuring Port Operation 76
- Spanning Tree 76
- Setting a Default Gateway 76
- Configuring BootP 77
- 5. WEB-BASED MANAGEMENT 79
- System Information 81
- Stack Browser 82
- Agent Configuration 84
- Hub Backplane 86
- Port Configuration 87
- Port Backup 88
- Switch Module Statistics 89
- MIB Browser 90
- RMON Browser 91
- Ethernet Statistics 92
- Web-Based Management 75 93
- Packets Pie Chart 94
- Error Packets Ratio 95
- History Control Entry 96
- History Data Entry 97
- Rate Bar Chart 99
- Utilization 100
- Web-Based Management 83 101
- Event Table 103
- Log Table 104
- 6. SNMP MANAGEMENT 105
- MIB Objects 106
- 9033060 SNMP Management 89 107
- Standards Compliance 109
- Certification 109
- Data Rate 109
- Environmental Specifications 109
- Electrical Specifications 110
- Physical 110
- Port Specifications 111
- Power Cord Set Requirements 112
- Country-Specific Requirements 113
- 2 Index ELH100-12/24TX 118
- 9033060 Index 3 119
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