Specifications

9031280 E4 Using RMON Views
5-5
Accessing Ethernet Views
Ethernet Statistics
• Fragments—Total packets received that were not an integral number of
octets in length or that had a bad FCS, and were less than 64 octets in
length.
• Jabbers—Total packets received, longer than 1518 octets, and not an
integral number of octets in length or with a bad FCS.
• Oversize—Total packets received, longer than 1518 octets, otherwise
well-formed.
• Undersize—Total packets received, less than 64 octets long, otherwise
well-formed.
• Drop Events—Total events in which packets were dropped due to lack of
resources.
Viewing Performance Statistics on the Segment
Double click on any instance (row or interface) in the Ethernet Statistics table
to view the RMON data presented in standard SPECTRUM Performance
View format. This allows you to view current percentage calculations and a
time graph of the interface activity, rather than the absolute numbers of the
Statistics Table. Note that this view is dynamically updated.
Viewing Network Activity with the Multi-Attribute Line Graph
The Multi-Attribute Line Graph provides a general indication of network
activity. The attributes’ colors represent different statistics. Green
represents Load, blue represents the Frame Rate, orange represents the Error
Rate, and yellow represents Collisions.
You can scroll back in time to view previously logged values for these
attributes.
Use the graph properties button to modify the presentation of the graph. It
has three options:
• Scroll to Date-Time—sets the viewing area to begin at a specified date and
time.
• Change Time Scale—sets the Y axis time scale for the graph.
• Data Logging—data logging is not relevant for the Segment Performance
Views of the RMON Probe models.
Use the Lin/Log toggle button to toggle between a linear and a logarithmic
scale presentation of the graph.