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Chapter 5
Advanced Configuration
29
WebView Switches
Statistics > RMON Statistics
The
RMON Statistics
screen contains fields for viewing
information about device utilization and errors that
occurred on the device.
Statistics > RMON Statistics
Interface
Indicates the device for which statistics are
displayed. The possible field values are:
Port
Defines the specific port for which RMON
statistics are displayed.
LAG
Defines the specific LAG for which RMON
statistics are displayed.
Refresh Rate
Defines the amount of time that passes
before the interface statistics are refreshed. The possible
field values are:
No Refresh
Indicates that the RMON statistics are not
refreshed.
15 Sec
Indicates that the RMON statistics are refreshed
every 15 seconds.
30 Sec
Indicates that the RMON statistics are refreshed
every 30 seconds.
60 Sec
Indicates that the RMON statistics are refreshed
every 60 seconds.
Drop Events
Displays the number of dropped events
that have occurred on the interface since the device was
last refreshed.
Received Bytes (Octets)
Displays the number of octets
received on the interface since the device was last
refreshed. This number includes bad packets and Frame
Check Sequence (FCS) octets, but excludes framing bits.
Received Packets
Displays the number of packets
received
on
the
interface
(including
bad
packets,
Multicast, and broadcast packets) since the device was
last refreshed.
Broadcast Packets Received
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 Received
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
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
20–150
ms.
Collisions
Displays the number of collisions received on
the interface since the device was last refreshed.
Frames of xx Bytes
Number of xx-byte frames received
on the interface since the device was last refreshed.
Clear Counters button
This option will reset all of the
statistic counts.
Refresh Now button
Use this option to refresh the
statistics that are displayed on the page.
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Chapter 5
Advanced Configuration
30
WebView Switches
Statistics > RMON History
The
RMON History
screen contains information about
samples of data taken from ports. For example, the samples
may include interface definitions or polling periods.
Statistics > RMON History
The
RMON History Control
screen is divided into RMON
History and Log Table.
Source Interface
Displays the interface from which the
history samples were taken. The possible field values are:
Port
Specifies the port from which the RMON
information was taken.
LAG
Specifies
the
port
from
which
the
RMON
information was taken.
Sampling
Interval
Indicates
(in
seconds)
the
time
that samplings are taken from the ports. The field range
is
1–3600
. The default is
1800
seconds (equal to 30
minutes).
Max No
of Samples to Keep. Indicates the number of
samples to save.
Owner
Displays
the
RMON
station
or
user
that
requested the RMON information. The field range is
0–20
characters.
The
Add to List
button adds the configured RMON
sampling to the Log Table at the bottom of the screen.
Log Table
Source Interface
Displays the interface from which the
history samples were taken.
Sampling Interval
Indicates the time in seconds that
samplings are taken from the port.
Sampling Requested
Displays the number of samples to
be saved. The field range is
1–65,535
. The default value is
50
.
Current
Number
of
Samples
Displays
the
current
number of samples taken.
View History Table button
This button opens the
RMON
History
screen.
RMON History
The
RMON History
screen contains interface-specific
statistical network samplings. Each table entry represents
all counter values compiled during a single sample.
RMON History Table
History Entry No
Displays the history table entry
number.
Owner
Displays the RMON station or user that requested
the RMON information. The field range is 0–20 characters.
Sample No
Indicates the sample number from which the
statistics were taken.
Drop Events
Displays the number of dropped events that
have occurred on the interface since the device was last
refreshed. This option is not available on the SRW224G4
and SRW248G4.
Received Bytes (Octets)
Displays the number of octets
received on the interface since the device was last
refreshed. This number includes bad packets and FCS
octets, but excludes framing bits.
Received Packets
Displays the number of packets
received on the interface since the device was last
refreshed, including bad packets, Multicast and Broadcast
packets.
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.
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Chapter 5
Advanced Configuration
31
WebView Switches
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
20–150
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 Alarm
The
RMON Alarm
screen contains fields for setting network
alarms. Network alarms occur when a network problem, or
event, is detected. Rising and falling thresholds generate
events.
Statistics > RMON Alarm
Alarm Entry
Indicates a specific alarm.
Source Interface
Displays the interface for which RMON
statistics are displayed. The possible field values are:
Port
Displays the RMON statistics for the selected
port.
LAG
Displays the RMON statistics for the selected
LAG.
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 the
alarm generation. Rising is defined by crossing the
threshold from a low-value threshold to a higher-value
threshold.
Interval
Defines the alarm interval time in seconds.
Owner
Displays the device or user that defined the
alarm.
Use the
Add to List
button to add the RMON Alarms Table
entry.
The Alarm Table area contains the following additional
field:
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Chapter 5
Advanced Configuration
32
WebView Switches
Counter Value
Displays the current counter value for the
particular alarm.
Statistics > RMON Events
The
RMON Events
screen contains fields for defining RMON
events.
Statistics > RMON Events
Add Event
Event Entry
Displays the event.
Community
Displays the community to which the event
belongs.
Description
Displays the user-defined event description.
Type
Describes the event type. Possible values are:
None
Indicates that no event occurred.
Log
Indicates that the event is a log entry.
Trap
Indicates that the event is a trap.
Log and Trap
Indicates that the event is both a log
entry and a trap.
Owner
Displays the device or user that defined the
event.
Use the
Add to List
button to add the configured RMON
event to the Event Table at the bottom of the screen.
The Event Table area contains the following additional
field:
Time
Displays the time that the event occurred.
RMON Events Log
RMON Events > Events Log
Event
Displays the RMON events log entry number.
Log No
Displays the log number.
Log Time
Displays the time the log entry was entered.
Description
Displays the log entry description.
Statistics > Port Utilization
The
Port Utilization
screen displays the amount of resources
each interface is currently consuming. Ports in green are
functioning normally, while ports in red are currently
transmitting an excessive amount of network traffic.
Statistics > Port Utilization
Refresh Rate
Indicates the amount of time that passes
before the port utilization statistics are refreshed. The
possible field values are:
No Refresh
Statistics are not refreshed.
15 Sec
Statistics are refreshed every 15 seconds.
30 Sec
Statistics are refreshed every 30 seconds.
60 Sec
Statistics are refreshed every 60 seconds.
Page 40 / 96
Chapter 5
Advanced Configuration
33
WebView Switches
Statistics > 802.1x Statistics
The
802.1X Statistic
screen contains information about
EAP packets received on a specific port.
Statistics > 802.1x Statistics
Port
Indicates the port, which is polled for statistics.
Refresh Rate
Indicates the amount of time that passes
before the EAP statistics are refreshed. The possible field
values are:
No Refresh
Indicates that the EAP statistics are not
refreshed.
15 Sec
Indicates that the EAP statistics are refreshed
every 15 seconds.
30 Sec
Indicates that the EAP statistics are refreshed
every 30 seconds.
60 Sec
Indicates that the EAP statistics are refreshed
every 60 seconds.
Name
Displays the measured 802.1x statistic.
Description
Describes the measured 802.1x statistic.
Packet
Displays the amount of packets measured for the
particular 802.1x statistic.
Statistics > GVRP Statistics
The
GVRP Statistics
screen contains device statistics for
GVRP.
Statistics > GVRP Statistics
The
GVRP Statistics
screen is divided into two areas,
GVRP Statistics Table and GVRP Error Statistics Table. The
following fields are relevant for both tables:
Interface
Specifies the interface type for which the
statistics are displayed.
Port
Indicates port statistics are displayed.
LAG
Indicates LAG statistics are displayed.
Refresh Rate
Indicates the amount of time that passes
before the GVRP statistics are refreshed. The possible field
values are:
No Refresh
Indicates that the GVRP statistics are not
refreshed.
15 Sec
Indicates that the GVRP statistics are refreshed
every 15 seconds.
30 Sec
Indicates that the GVRP statistics are refreshed
every 30 seconds.
60 Sec
Indicates that the GVRP statistics are refreshed
every 60 seconds.
The GVRP Statistics Table contains the following fields:
Join Empty
Displays the device GVRP Join Empty
statistics.
Empty
Displays the device GVRP Empty statistics.
Leave Empty
Displays the device GVRP Leave Empty
statistics.
Join In
Displays the device GVRP Join In statistics.
Leave In
Displays the device GVRP Leave in statistics.
Leave All
Displays the device GVRP Leave all statistics.

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