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Lantronix
SM24TBT2DPA and SM24TBT2DPB Web User Guide
3-5.4.1.2 History
This page displays an overview of RMON History entries. Each page shows up to 99 entries from the
History table, default being 20, selected through the "entries per page" input field. When first visited, the
web page will show the first 20 entries from the beginning of the History table. The first displayed will be
the one with the lowest History Index and Sample Index found in the History table.
The "Start from History Index” and “Sample Index" let you select the starting point in the History table.
The Last Entry (
>
) button will use the last entry of the currently displayed entry as a basis for the next
lookup. When the end is reached the text "
No more entries
" is shown in the displayed table. Use the
<<
button to start over.
Web Interface
To view RMON history in the web UI:
1. Click Monitor, Security, Switch, RMON, History.
2. Specify “Start from Control index” and “Sample Index”.
3. Check “Auto-refresh”.
4. Click “Refresh” to refresh the statistics or clear all information when you click “Clear”.
Figure 3-5.4.1.2: RMON History Overview page
Parameter descriptions:
History Index:
Indicates the index of History control entry.
Sample Index:
Indicates the index of the data entry associated with the control entry.
Sample Start:
The value of
sysUpTime
at the start of the interval over which this sample was measured.
Drop:
The total number of events in which packets were dropped by the probe due to lack of resources.
Octets:
The total number of octets of data (including those in bad packets) received on the network.
Pkts:
The total number of packets (including bad packets, broadcast packets, and multicast packets)
received.
Broadcast:
The total number of good packets received that were directed to the broadcast address.
Multicast:
The total number of good packets received that were directed to a multicast address.
CRC Errors:
The total number of packets received that had a length (excluding framing bits, but including
FCS octets) of between 64 and 1518 octets, inclusive, but had either a bad Frame Check Sequence (FCS)
with an integral number of octets (FCS Error) or a bad FCS with a non-integral number of octets
(Alignment Error).
Undersize:
The total number of packets received that were less than 64 octets.
Oversize:
The total number of packets received that were longer than 1518 octets.
Frag.:
The number of frames which size is less than 64 octets received with invalid CRC.
Jabb.:
The number of frames which size is larger than 64 octets received with invalid CRC.