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Chapter 16 Sys Screens
The managed devices contain object variables/managed objects that define each piece of
information to be collected about a switch. 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 264 SNMP Commands
COMMAND
Get
GetNext
Set
Trap
16.1.1 Supported MIBs
MIBs let administrators collect statistics and monitor status and performance. The system
supports the following MIBs:
• SNMP MIB II (RFC 1213)
• BRIDGE MIB (RFC 1573) dot1dStp (RSTP), dot1dGarp (GARP)
• BRIDGE Extension MIB (RFC 2674)
• Dot3 MIB (RFC 2665)
• ADSL Line MIB (RFC 2662)
• ADSL Extension Line MIB (RFC 3440)
• VDSL2 MIB (draft-ietf-adslmib-vdsl2-06)
• RMON MIB (RFC 1757)
• ifXTable MIB (RFC 2863)
• RFC 3635
• RFC 3636
The system can also respond with specific data from the ZyXEL private ies5000 MIB.
16.2 SNMP Screen
Click Sys > Access Control from the navigation panel to open the following screen.
508
DESCRIPTION
Allows the manager to retrieve an object variable from the agent.
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.
Allows the manager to set values for object variables within an agent.
Used by the agent to inform the manager of some events.
MSC1000G/1024G/1224G Series User's Guide
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Troubleshooting
