ZyXEL Communications MAX-306M1 User Manual
Chapter 18 The Remote Management Screens
User’s Guide
208
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 Modem 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.
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 Modem 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:
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
• 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.
• Trap - Used by the agent to inform the manager of some events.
18.5.1 SNMP Traps
The WiMAX Modem sends traps to the SNMP manager when any of the following
events occurs:
events occurs:
Table 74 SNMP Traps
TRAP #
TRAP NAME
DESCRIPTION
0
coldStart (defined in RFC-
1215)
1215)
A trap is sent after booting (power on).
1
warmStart (defined in RFC-
1215)
1215)
A trap is sent after booting (software reboot).
4
authenticationFailure (defined
in RFC-1215)
in RFC-1215)
A trap is sent to the manager when receiving
any SNMP get or set requirements with the
wrong community (password).
any SNMP get or set requirements with the
wrong community (password).
6
whyReboot (defined in
ZYXEL-MIB)
ZYXEL-MIB)
A trap is sent with the reason of restart before
rebooting when the system is going to restart
(warm start).
rebooting when the system is going to restart
(warm start).
6a
For intentional reboot:
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.).
by user!" if reboot is done intentionally, (for
example, download new files, CI command "sys
reboot", etc.).
6b
For fatal error:
A trap is sent with the message of the fatal
code if the system reboots because of fatal
errors.
code if the system reboots because of fatal
errors.