Avaya Configuring SNMP, RMON, BOOTP, DHCP, and RARP Services Manuel d'utilisateur Page 34
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Configuring SNMP, RMON, BOOTP, DHCP, and RARP Services
2-2 114070 Rev. B
The agents also send unsolicited reports (called traps) back to the network
management station when certain network activity occurs. An example of a trap is
an overload condition as defined by the packet load’s crossing some threshold.
You use the management station to configure, monitor, and receive trap messages
from other network devices configured as SNMP agents. The management station
can get and set objects in the agents and can receive traps from the agents. The
management station, therefore, has the capability to “manage” a number of
agents.
SNMP Messages
SNMP managers and network elements communicate with each other by sending
SNMP messages (F
igure 2-1). The management station issues three types of
SNMP messages to retrieve single or multiple object variables:
• GetRequest message
• GetNextRequest message
• SetRequest message
The agent acknowledges all three types of messages in the form of a Get Response
message, which is passed to the management application. In addition, an agent
may issue a trap to the network management station to identify the occurrence of a
condition, such as a threshold that exceeds a predefined value.
- 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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