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Chapter 5: Using the Web-based Utility for Configuration
Statistics Tab - RMON History
WebView Switches
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 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.
Statistics Tab - 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.
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.
Figure 5-17: Statistics - RMON History