ZyXEL Communications ZyXEL Dimension ES-1528 - Manual (Page 106)

Chapter 18 SNMP
ES-1528 User’s Guide
106
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:
18.1.1 Supported MIBs
MIBs let administrators collect statistics and monitor status and performance.
The switch supports the following MIBs:
• RFC 1213 SNMP MIB II
• MIB II - System
• MIB II - Interface
• RFC 1398 MIB - Ether-like
• RFC 1157 SNMP v1
• RFC 1155 SMI
• RFC 2674 SNMPv2, SNMPv2c
• RFC 2819 RMON
• Group 1 (Statistics)
• Group 2 (History)
• Group 3 (Alarm)
• Gropu 4 (Event)
18.1.2 SNMP Traps
The switch sends traps to an SNMP manager when an event occurs. SNMP traps supported are
outlined in the following table.
Table 38 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.
Set Allows the manager to set values for object variables within an agent.
Trap Used by the agent to inform the manager of some events.
Table 39 SNMP Traps
OBJECT LABEL OBJECT ID DESCRIPTION
SNMPv2 Traps
Cold Start 1.3.6.1.6.3.1.1.5.1 This trap is sent when the switch is turned on.
WarmStart 1.3.6.1.6.3.1.1.5.2 This trap is sent when the switch restarts.
linkDown 1.3.6.1.6.3.1.1.5.3 This trap is sent when the Ethernet link is down.
linkUp 1.3.6.1.6.3.1.1.5.4 This trap is sent when the Ethernet link is up.
authenticationFailure 1.3.6.1.6.3.1.1.5.5 This trap is sent when an SNMP request comes from
non-authenticated hosts.