Avaya Configuring SNMP, RMON, BOOTP, DHCP, and RARP Services Manuel d'utilisateur Page 41
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SNMP, RMON, BOOTP, DHCP, and RARP Concepts
114070 Rev. B 2-9
Event Message Format
By default, the threshold event messages include the MIB object identifier (OID)
of the variable that exceeded the threshold, the value of the variable, and the
threshold level exceeded.
For example, if the wfCctOptsCngcCfgQp1Threshold variable has a value of 120,
the agent generates an event message similar to the following:
#1:08/27/96 10:53:20.802 INFO SLOT 2 STA CODE: 6
Object 1.3.6.1.4.1.18.3.5.1.4.10.1.24 with value = 120 units/ hour is
> low threshold.
You can, however, identify objects more easily by configuring the software to
report the object name rather than the OID in the event message. To configure the
software to report the object name in the event message, use the Threshold Label
parameter (refer to Appendix A).
For example, if you set the Threshold Label parameter to
wfCctOptsCngcCfgQp1Threshold, the agent generates an event message similar
to the following:
#1:08/27/96 10:53:20.802 INFO SLOT 2 STA CODE: 6
Object wfCctOptsCngcCfgQp1Threshold with value = 120 units/ hour is
> low threshold.
State of a Threshold
If the collision rate stays above a threshold for an extended period of time, the
agent continues to generate a new event every 5 seconds. You can specify the
maximum number of event messages you want the agent to generate before it
changes the threshold’s state to held.
When the threshold is in a held state, the agent does not generate new events
unless the statistic exceeds the threshold at a different level. If the statistic does
not exceed any threshold for a specified number of polling periods, the agent no
longer considers the threshold held.
Memory Considerations
Polling statistics to determine whether they have reached a threshold and
reporting events when variables exceed thresholds require router processing
capacity. When you set many thresholds and use shorter polling intervals, the
router performance will probably decline.
- Configuring SNMP 1
- RMON, BOOTP, DHCP 1
- Bay Networks Software License 3
- Contents 5
- 114070 Rev. B 10
- About This Guide 15
- Before You Begin 16
- Conventions 16
- Acronyms 17
- World Wide Web 21
- Customer Service FTP 21
- Support Source CD 22
- CompuServe 22
- How to Get Help 23
- Chapter 1 25
- Starting SNMP, RMON, BOOTP 25
- DHCP, and RARP Services 25
- Starting SNMP Services 26
- Starting RMON 27
- Enabling the Ethernet DCM 28
- Customizing the Ethernet DCM 28
- Starting BOOTP Services 29
- Starting DHCP 30
- Starting RARP Services 31
- Chapter 2 33
- SNMP, RMON, BOOTP 33
- DHCP, and RARP Concepts 33
- SNMP Messages 34
- Figure 2-1. Role of SNMP 35
- SNMP Implementation Notes 36
- Internet Protocol (IP) 37
- Events and Traps 37
- 2-6 114070 Rev. B 38
- Table 2-1. Severity Levels 38
- Thresholds 39
- Threshold Example 40
- RMON Overview 42
- SNM0011A 43
- RMON Architecture 44
- RMON MIB Groups 45
- 2-14 114070 Rev. B 46
- 114070 Rev. B 2-15 47
- 2-16 114070 Rev. B 48
- RMON Interoperability Issues 49
- RMON Applications 50
- RMON Memory Use 50
- 114070 Rev. B 2-19 51
- 2-20 114070 Rev. B 52
- 2-22 114070 Rev. B 54
- BOOTP Relay Agent Overview 56
- SNM0002A 57
- 2-26 114070 Rev. B 58
- SNM0001A 59
- 2-28 114070 Rev. B 60
- DHCP Overview 61
- 2-30 114070 Rev. B 62
- SNM0005A 63
- 2-32 114070 Rev. B 64
- SNM0006A 65
- 2-34 114070 Rev. B 66
- RARP Overview 67
- 2-36 114070 Rev. B 68
- Chapter 3 69
- Customizing SNMP 69
- Adding an SNMP Community 71
- Deleting an SNMP Community 72
- Adding a Manager 73
- 3-6 114070 Rev. B 74
- Deleting a Manager 75
- 3-8 114070 Rev. B 76
- Configuring Trap Exceptions 77
- Configuring Thresholds 78
- Adding a Threshold 79
- 3-12 114070 Rev. B 80
- Specifying Threshold Units 81
- 3-14 114070 Rev. B 82
- Chapter 4 83
- Customizing a DCM for RMON 83
- 4-2 114070 Rev. B 84
- Specifying the Boot Option 85
- Saving the Boot Image File 85
- 4-4 114070 Rev. B 86
- Rebooting the Ethernet DCM 87
- 4-8 114070 Rev. B 90
- Using Optivity LAN with RMON 92
- Chapter 5 95
- 5-2 114070 Rev. B 96
- Enable BOOTP on 98
- Corporate backbone 98
- Booting routers 98
- BOOTP server 98
- Customizing BOOTP 101
- 5-8 114070 Rev. B 102
- Deleting BOOTP Globally 104
- Chapter 6 105
- Customizing DHCP 105
- Deleting DHCP Globally 106
- Chapter 7 107
- Customizing RARP 107
- 7-2 114070 Rev. B 108
- Disabling RARP Globally 109
- Deleting RARP Globally 109
- Appendix A 111
- Parameter Descriptions 111
- SNMP Global Parameters 112
- 113
- SNMP Community Parameters 114
- SNMP Manager Parameters 115
- A-6 114070 Rev. B 116
- 119
- 122
- 122
- 114070 Rev. B A-13 123
- DCM Global Parameters 124
- 1:dcm_image 125
- 126
- 126
- BOOTP and DHCP Parameters 129
- 130
- BOOTP Address Parameters 131
- 114070 Rev. B A-23 133
- A-24 114070 Rev. B 134
- RARP Interface Parameters 136
- RARP Address Parameters 136
- 114070 Rev. B A-27 137
- Appendix B 139
- Default Parameter Settings 139
- (continued) 140
- RARP Parameters 143
- 114070 Rev. B Index-1 145
- 114070 Rev. B Index-3 147
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