
Chapter 19 SNMP
P-663H-51 User’s Guide
128
An agent is a management software module that resides in a managed device (the ZyXEL
Device). An agent translates the local management information from the managed device into
a form compatible with SNMP. The manager is the console through which network
administrators perform network management functions. It executes applications that control
and monitor managed devices.
The managed devices contain object variables/managed objects that define each piece of
information to be collected about a device. Examples of variables include such as number of
packets received, node port status etc. A Management Information Base (MIB) is a collection
of managed objects. SNMP allows a manager and agents to communicate for the purpose of
accessing these objects.
SNMP itself is a simple request/response protocol based on the manager/agent model. The
manager issues a request and the agent returns responses using the following protocol
operations:
19.1.1 Supported MIBs
MIBs let administrators collect statistics and monitor status and performance. The ZyXEL
Device supports the following MIBs:
• ADSL mib
• AT mib
• ATM mib
• ICMP mib
• IP mib
• SNMP mib
• SYSOR mib
• TCP mib
• UDP mib
The ZyXEL Device uses these MIBs to provide read-only information. You cannot use SNMP
to configure the ZyXEL Device.
Table 52
SNMP Commands
COMMAND
DESCRIPTION
Get
Allows the manager to retrieve an object variable from the agent.
GetNext
Allows the manager to retrieve the next object variable from a table or list within
an agent. In SNMPv1, when a manager wants to retrieve all elements of a table
from an agent, it initiates a Get operation, followed by a series of GetNext
operations.
Trap
Used by the agent to inform the manager of some events.
Содержание P-663H-51
Страница 2: ......
Страница 7: ...Safety Warnings P 663H 51 User s Guide 7 ...
Страница 8: ...Safety Warnings P 663H 51 User s Guide 8 ...
Страница 10: ...Contents Overview P 663H 51 User s Guide 10 ...
Страница 20: ...List of Figures P 663H 51 User s Guide 20 ...
Страница 23: ...23 PART I Introduction Introducing the ZyXEL Device 25 Introducing the Web Configurator 31 ...
Страница 24: ...24 ...
Страница 30: ...Chapter 1 Introducing the ZyXEL Device P 663H 51 User s Guide 30 ...
Страница 36: ...Chapter 2 Introducing the Web Configurator P 663H 51 User s Guide 36 ...
Страница 50: ...50 ...
Страница 66: ...Chapter 5 WAN Setup P 663H 51 User s Guide 66 Figure 30 Advanced Setup WAN Add Summary MER ...
Страница 108: ...Chapter 13 Dynamic DNS Setup P 663H 51 User s Guide 108 ...
Страница 114: ...Chapter 15 Port Mapping P 663H 51 User s Guide 114 ...
Страница 116: ...116 ...
Страница 118: ...Chapter 16 Diagnostics P 663H 51 User s Guide 118 ...
Страница 122: ...Chapter 17 Settings P 663H 51 User s Guide 122 ...
Страница 126: ...Chapter 18 Logs P 663H 51 User s Guide 126 ...
Страница 130: ...Chapter 19 SNMP P 663H 51 User s Guide 130 ...
Страница 132: ...Chapter 20 Time P 663H 51 User s Guide 132 ...
Страница 140: ...Chapter 23 Save Reboot and Logout P 663H 51 User s Guide 140 ...
Страница 141: ...141 PART IV Troubleshooting and Specifications Troubleshooting 143 Product Specifications 147 ...
Страница 142: ...142 ...
Страница 152: ...Chapter 25 Product Specifications P 663H 51 User s Guide 152 ...
Страница 154: ...154 ...
Страница 188: ...Appendix D Common Services P 663H 51 User s Guide 188 ...
Страница 196: ...Appendix F Legal Information P 663H 51 User s Guide 196 ...
Страница 202: ...Appendix G Customer Support P 663H 51 User s Guide 202 ...