Linksys SLM224G4S - Manual (Page 32)

Chapter  Configuration Using the Web-based Utility
2 24/48-Port 10/100 + 4-Port Gigabit Resilient Clustering Smart Switch with 2 Combo SFPs
Broadcast Packets Displays the number of good
Broadcast packets received on the interface since the
device was last refreshed. This number does not include
Multicast packets.
Multicast Packets Displays the number of good Multicast
packets received on the interface since the device was last
refreshed.
CRC Align Errors Displays the number of CRC and Align
errors that have occurred on the interface since the device
was last refreshed.
Undersize Packets Displays the number of undersized
packets (less than 64 octets) received on the interface
since the device was last refreshed.
Oversize Packets Displays the number of oversized
packets (over 1518 octets) received on the interface since
the device was last refreshed.
Fragments Displays the number of fragments (packets
with less than 64 octets, excluding framing bits, but
including FCS octets) received on the interface since the
device was last refreshed.
Jabbers Displays the total number of received packets
that were longer than 1518 octets. This number excludes
frame bits, but includes FCS octets that had either a bad
Frame Check Sequence (FCS) with an integral number of
octets (FCS Error) or a bad FCS with a non-integral octet
(Alignment Error) number. The field range to detect
jabbers is between 20 ms and 10 ms.
Collisions Displays the number of collisions received on
the interface since the device was last refreshed.
Utilization Displays the percentage of the interface utilized.
Statistics > RMON Alarms
The RMON Alarm screen is used to set network alarms.
Network alarms occur when a network problem, or event,
is detected. Rising and falling thresholds generate events.
Statistics > RMON Alarm
Add Alarm
Alarm Entry Indicates a specific alarm.
Interface Indicates the interface for which RMON
statistics are displayed. To specify the interface, select
Unit No. (default) and specify the unit number and port
from the drop-down menus, or select LAG and select the
LAG number from the drop-down menu.
Counter Name Displays the selected MIB variable.
Sample Type Defines the sampling method for the
selected variable and comparing the value against the
thresholds. The possible field values are:
Absolute Compares the values directly with the
thresholds at the end of the sampling interval.
Delta Subtracts the last sampled value from the
current value. The difference in the values is compared
to the threshold.
Rising Threshold Displays the rising counter value that
triggers the rising threshold alarm. The rising threshold
is presented on top of the graph bars. Each monitored
variable is designated a color.
Rising Event Displays the mechanism in which the alarms
are reported. The possible field values are:
LOG Indicates there is not a saving mechanism for
either the device or in the management system. If the
device is not reset, the entry remains in the Log Table.
TRAP Indicates that an SNMP trap is generated, and
sent via the Trap mechanism. The Trap can also be
saved using the Trap mechanism.
Both Indicates that both the Log and Trap mechanism
are used to report alarms.
Falling Threshold Displays the falling counter value that
triggers the falling threshold alarm. The falling threshold
is graphically presented on top of the graph bars. Each
monitored variable is designated a color.
Falling Event Displays the mechanism in which the
alarms are reported. The possible field values are:
LOG Indicates there is not a saving mechanism for
either the device or in the management system. If the
device is not reset, the entry remains in the Log Table.
TRAP Indicates that a SNMP trap is generated, and
sent via the Trap mechanism. The Trap can also be
saved using the Trap mechanism.
Both Indicates that both the Log and Trap mechanism
are used to report alarms.
Startup Alarm Displays the trigger that activates alarm
generation. Rising is defined by crossing the threshold
from a low-value threshold to a higher-value threshold.
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