Snmp Traps; Table 87 Snmp Traps - ZyXEL Communications MAX-306 User Manual

Chapter 18 The Remote Management Screens
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.
The WiMAX Device supports MIB II that is defined in RFC-1213 and RFC-1215. The
focus of the MIBs is to let administrators collect statistical data and monitor status
and performance.
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:
• 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.

18.5.1 SNMP Traps

The WiMAX Device sends traps to the SNMP manager when any of the following
events occurs:

Table 87 SNMP Traps

TRAP #
0
1
4
6
6a
6b
222
TRAP NAME
coldStart (defined in RFC-
1215)
warmStart (defined in RFC-
1215)
authenticationFailure (defined
in RFC-1215)
whyReboot (defined in
ZYXEL-MIB)
For intentional reboot:
For fatal error:
DESCRIPTION
A trap is sent after booting (power on).
A trap is sent after booting (software reboot).
A trap is sent to the manager when receiving
any SNMP get or set requirements with the
wrong community (password).
A trap is sent with the reason of restart before
rebooting when the system is going to restart
(warm start).
A trap is sent with the message "System reboot
by user!" if reboot is done intentionally, (for
example, download new files, CI command "sys
reboot", etc.).
A trap is sent with the message of the fatal
code if the system reboots because of fatal
errors.
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