ZyXEL P-663HN-51 User Guide - Page 186
Supported MIBs, Table 65
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Chapter 22 SNMP 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: Table 65 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. 22.1.1 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. 186 P-663HN-51 User's Guide