iRBX6GF User’s Manual
UM-iRBX6GF-4.5.1-EN.docx
Pages 18 of 119
Alarms Management
An
event
is a distinct incident that occurs at a specific point in time, such as a port status change. Events
can indicate errors, failures, or exceptional conditions in the network. Events can also indicate the
clearing
of those errors, failures, or conditions.
An
alarm
is a response to one or more related events. Only certain events generate alarms. Alarms have
a state (cleared or not cleared) and a severity (for iRBX6GF,
info, warn, error, critical
). An
alarm inherits the severity of its most recent event. Alarms remain open until a clearing event is
generated (or if the alarm is manually cleared). [11]
A
trap
is an SNMP message. All SNMP messages are transported via User Datagram Protocol (UDP). The
SNMP agent receives requests on UDP port 161. The manager may send requests from any available
source port to port 161 in the agent. The agent response is sent back to the source port on the manager.
The manager receives notifications (Traps and InformRequests) on port 162. [9]
A
Syslog message
is message sent via Syslog protocol using UDP port 514 (by default).
iRBX supports monitoring critical events such as a port up/down, temperature, or power supply status.
These parameters are accessible through SNMP, CLI and Web UI. Critical alarms are viewed through
LEDs of the switch
An user may selectively assign one or more of the events to monitor. If a monitored port changes its link
status, or if temperature goes above a threshold or power supply goes down, an SNMP trap and/or syslog
message is issued to report that event.
Alarm configuration is accessible through SNMP, CLI and Web UI.
6.1
SNMP Traps
iRBX6GF generates the following SNMP traps:
1.
Power status:
powersupplybothup(1)
powersupply2down(2)
powersupply1down(3)
2.
Temperature
3.
Port link status(Port up/down)—linkDown, linkUp
4.
Cold Start—coldStart
5.
Warm Start—warmStart
6.2
SNMP Traps and MIB OID
For a management system to understand a trap sent to it by an agent, the management system must know
what the MIB object identifier (OID) defines. [11] MIB stands for Management Information Base.
Table 13 – SNMP Traps and MIB OID
Parameter
MIB OID
Values
power
_
status
1.3.6.1.4.1.41094.0.50.10.24.1.1.0
powersupplybothup(1)
powersupply2down(2)
powersupply1down(3)
temperature
1.3.6.1.4.1.41094.0.50.10.24.1.4.1
0- normal
1-exceeded
Port1 link status
1.3.6.1.2.1.2.2.1.8.1
1 – Port is up
2 – Port is down
Port2 link status
1.3.6.1.2.1.2.2.1.8.2
1 – Port is up
2 – Port is down
Port3 link status
1.3.6.1.2.1.2.2.1.8.3
1 – Port is up
2 – Port is down
Port4 link status
1.3.6.1.2.1.2.2.1.8.4
1 – Port is up
2 – Port is down
