Dell PowerConnect Brocade M6505 Brocade 7.1.0 Fabric Watch Administrator's Gui - Page 30

SNMP traps, RASlog (switch event), SNMP trap counters

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1 Fabric Watch notification types Enabling e-mail alerts for the Changed threshold state in several areas can quickly result in a significant amount of e-mail. Fabric Watch discards e-mail alerts when more than 100 are generated within a minute, which minimizes memory use. SNMP traps In environments where you have a high number of messages coming from a variety of switches, you might want to receive them in a single location and view them using a graphical user interface (GUI). In this type of scenario, the Simple Network Management Protocol (SNMP) notifications might be the most efficient notification method. You can avoid having to log in to each switch individually as you would have to do for error log notifications. SNMP performs an operation called a trap that notifies a management station using SNMP when events occur. Log entries can also trigger SNMP traps if the SNMP agent is configured. When the SNMP agent is configured to a specific error message level, error messages at that level trigger SNMP traps. An SNMP trap forwards the following information to an SNMP management station: • Name of the element whose counter registered an event • Class, area, and index number of the threshold that the counter crossed • Event type • Value of the counter that exceeded the threshold • State of the element that triggered the alarm • Source of the trap You must configure the software to receive trap information from the network device. You must also configure the SNMP agent on the switch to send the trap to the management station. You can configure SNMP notifications using the snmpConfig command and you can configure notifications using Fabric Watch. For information on configuring the SNMP agent using the snmpConfig command, see the Fabric OS Command Reference. SNMP trap counters • When a counter is in the "in-between" state, Fabric Watch sends an informational SNMP trap. See "In-between buffer values" on page 14 for an explanation of the concepts of "in-between" boundaries and above high, below high, above low, and below low thresholds. • When a counter is above the high threshold or below the low threshold, Fabric Watch sends a warning SNMP trap except for the power supply area of the environment (ENV), CPU, and Memory classes. The severity of a Fabric Watch SNMP trap for CPU and memory will always be informational. See "Threshold values" on page 13 for a more thorough explanation of thresholds. RASlog (switch event) Following an event, Fabric Watch adds an entry to the internal event log for an individual switch. RASlog stores event information but does not actively send alerts. Use the errShow command to view the RASlog. 10 Fabric Watch Administrator's Guide 53-1002752-01

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10
Fabric Watch Administrator’s Guide
53-1002752-01
Fabric Watch notification types
1
Enabling e-mail alerts for the Changed threshold state in several areas can quickly result in a
significant amount of e-mail. Fabric Watch discards e-mail alerts when more than 100 are
generated within a minute, which minimizes memory use.
SNMP traps
In environments where you have a high number of messages coming from a variety of switches, you
might want to receive them in a single location and view them using a graphical user interface
(GUI). In this type of scenario, the Simple Network Management Protocol (SNMP) notifications
might be the most efficient notification method. You can avoid having to log in to each switch
individually as you would have to do for error log notifications.
SNMP performs an operation called a
trap
that notifies a management station using SNMP when
events occur. Log entries can also trigger SNMP traps if the SNMP agent is configured. When the
SNMP agent is configured to a specific error message level, error messages at that level trigger
SNMP traps.
An SNMP trap forwards the following information to an SNMP management station:
•
Name of the element whose counter registered an event
•
Class, area, and index number of the threshold that the counter crossed
•
Event type
•
Value of the counter that exceeded the threshold
•
State of the element that triggered the alarm
•
Source of the trap
You must configure the software to receive trap information from the network device. You must also
configure the SNMP agent on the switch to send the trap to the management station. You can
configure SNMP notifications using the
snmpConfig
command and you can configure notifications
using Fabric Watch.
For information on configuring the SNMP agent using the
snmpConfig
command, see the
Fabric OS
Command Reference.
SNMP trap counters
•
When a counter is in the “in-between” state, Fabric Watch sends an informational SNMP trap.
See
“In-between buffer values”
on page 14 for an explanation of the concepts of “in-between”
boundaries and above high, below high, above low, and below low thresholds.
•
When a counter is above the high threshold or below the low threshold, Fabric Watch sends a
warning SNMP trap
except
for the power supply area of the environment (ENV), CPU, and
Memory classes. The severity of a Fabric Watch SNMP trap for CPU and memory will always be
informational.
See
“Threshold values”
on page 13 for a more thorough explanation of thresholds.
RASlog (switch event)
Following an event, Fabric Watch adds an entry to the internal event log for an individual switch.
RASlog stores event information but does not actively send alerts. Use the
errShow
command to
view the RASlog.