Avaya Configuring SNMP, RMON, BOOTP, DHCP, and RARP Services Bedienungsanleitung Seite 46
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Configuring SNMP, RMON, BootP, DHCP, and RARP Services
2-10 117362-A Rev. A
The RMON MIB provides a standard method to monitor the basic operations of
the Ethernet, providing interoperability between SNMP management stations and
monitoring agents. RMON also provides a powerful alarm and event mechanism
for setting thresholds and for notifying you of changes in network behavior.
You can use RMON to analyze and monitor network traffic data within remote
LAN segments from a central location. This allows you to detect, isolate,
diagnose, and report potential and actual network problems before they escalate to
crisis situations. For example, the Ethernet DCM can identify the hosts on a
network that generate the most traffic or errors.
RMON allows you to set up automatic histories, which the RMON agent collects
over a period of time, providing trending data on such basic statistics as
utilization, collisions, and so forth. Using a network management application such
as Optivity LAN or Optivity Analysis, you can retrieve histories to understand
network usage patterns. Because RMON automates this data collection and
provides better data to the planning process, the process is easier and the outcome
more accurate.
How RMON Works
A typical RMON configuration consists of a central network management station
and a remote monitoring device, called an RMON agent. The network
management station can be a Windows-based or UNIX-based workstation or PC
running a network management application, such as Optivity Analysis. From the
management station, you can issue SNMP commands requesting information
from the RMON agent. The RMON agent sends the requested information to the
management station, which then processes and displays this information on its
console.
The RMON agent is software that resides on a DCM within a Bay Networks
BayStack AN
®
, ANH
™
, or ARN router on a remote network. As packets travel
across the network, the RMON agent continuously collects and analyzes Ethernet
data in real time on a remote LAN segment and stores the data locally in the
Ethernet DCM according to the RMON MIB specification, defined in RFC 1757.
You can have multiple RMON agents running in different segments of the
network, usually one per subnet (F
igure 2-2).
- Configuring SNMP 1
- RMON, BootP, DHCP 1
- Contents 5
- 117362-A Rev. A 10
- About This Guide 17
- Before You Begin 18
- Conventions 18
- Acronyms 19
- Bay Networks Customer Service 20
- How to Get Help 21
- Chapter 1 23
- Starting SNMP, RMON, BootP 23
- DHCP, and RARP Services 23
- Starting Configuration Tools 24
- Using Site Manager 25
- Using the BCC 25
- Starting SNMP Services 27
- Starting RMON 28
- Enabling the Ethernet DCM 29
- Customizing the Ethernet DCM 30
- Starting BootP Services 31
- Starting DHCP Services 32
- Enabling DHCP on an Interface 33
- Starting RARP Services 34
- Chapter 2 37
- SNMP, RMON, BootP 37
- DHCP, and RARP Concepts 37
- SNMP Messages 38
- SNMP Communities 39
- SNMP Implementation Notes 40
- 2-6 117362-A Rev. A 42
- Table 2-1. Severity Levels 42
- Thresholds 43
- Threshold Example 43
- 2-8 117362-A Rev. A 44
- RMON Overview 45
- How RMON Works 46
- RMON Architecture 47
- RMON MIB Groups 48
- 117362-A Rev. A 2-13 49
- 2-14 117362-A Rev. A 50
- 117362-A Rev. A 2-15 51
- 2-16 117362-A Rev. A 52
- RMON Interoperability Issues 53
- 2-18 117362-A Rev. A 54
- RMON Applications 55
- RMON Memory Use 56
- 117362-A Rev. A 2-21 57
- 2-22 117362-A Rev. A 58
- 117362-A Rev. A 2-23 59
- 2-24 117362-A Rev. A 60
- 117362-A Rev. A 2-25 61
- BootP Relay Agent Overview 62
- 117362-A Rev. A 2-27 63
- 2-28 117362-A Rev. A 64
- 117362-A Rev. A 2-29 65
- DHCP Overview 66
- 117362-A Rev. A 2-31 67
- 2-32 117362-A Rev. A 68
- 117362-A Rev. A 2-33 69
- 2-34 117362-A Rev. A 70
- 117362-A Rev. A 2-35 71
- RARP Overview 72
- 117362-A Rev. A 2-37 73
- Chapter 3 75
- 3-2 117362-A Rev. A 76
- Disabling and Reenabling SNMP 77
- Specifying a Lock Address 80
- Adding SNMP Communities 83
- Deleting an SNMP Community 86
- Adding a Manager 87
- Deleting a Manager 91
- Specifying a Trap Entity 93
- Disabling a Trap Entity 96
- Configuring Trap Exceptions 97
- Deleting Trap Exceptions 99
- Configuring Thresholds 100
- Customizing SNMP 101
- Adding a Threshold 102
- 3-30 117362-A Rev. A 104
- Specifying Threshold Units 105
- 3-32 117362-A Rev. A 106
- 3-34 117362-A Rev. A 108
- Chapter 4 111
- Customizing a DCM for RMON 111
- 4-2 117362-A Rev. A 112
- 1:dcm_image 113
- Specifying the Boot Option 114
- Saving the Boot Image File 115
- 4-6 117362-A Rev. A 116
- 4-8 117362-A Rev. A 118
- Rebooting the Ethernet DCM 120
- 4-12 117362-A Rev. A 122
- 4-14 117362-A Rev. A 124
- Using Optivity LAN with RMON 125
- 4-16 117362-A Rev. A 126
- Chapter 5 127
- Customizing BootP 127
- 5-2 117362-A Rev. A 128
- 5-4 117362-A Rev. A 130
- BootP Server and the Routers 131
- 5-6 117362-A Rev. A 132
- BOOTREQUEST Packets 133
- 5-8 117362-A Rev. A 134
- 5-10 117362-A Rev. A 136
- 5-12 117362-A Rev. A 138
- 5-14 117362-A Rev. A 140
- 5-16 117362-A Rev. A 142
- Deleting BootP Globally 144
- Chapter 6 145
- Customizing DHCP 145
- 6-2 117362-A Rev. A 146
- Deleting DHCP Globally 148
- Chapter 7 149
- Customizing RARP 149
- 7-2 117362-A Rev. A 150
- 7-4 117362-A Rev. A 152
- Disabling RARP Globally 153
- Deleting RARP Globally 153
- Appendix A 155
- Parameter Descriptions 155
- A-2 117362-A Rev. A 156
- SNMP Global Parameters 157
- 158
- SNMP Community Parameters 159
- SNMP Manager Parameters 160
- 117362-A Rev. A A-7 161
- 164
- 167
- 167
- A-14 117362-A Rev. A 168
- DCM Global Parameters 169
- A-16 117362-A Rev. A 170
- 171
- 171
- BootP and DHCP Parameters 174
- 175
- BootP Address Parameters 176
- A-24 117362-A Rev. A 178
- 117362-A Rev. A A-25 179
- RARP Interface Parameters 181
- RARP Address Parameters 181
- A-28 117362-A Rev. A 182
- Appendix B 183
- Default Parameter Settings 183
- (continued) 184
- RARP Parameters 187
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