History

This page provides 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.

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Object Description
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.
CRCErrors 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.
Coll. The best estimate of the total number of collisions on this Ethernet segment.
Utilization The best estimate of the mean physical layer network utilization on this interface during this sampling interval, in hundredths of a percent.
Buttons
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../_Common/../Graphics/update-table-first-entry.png Update the table starting from the first entry in the table.
../_Common/../Graphics/update-table-ending-last-entry.png Update the table starting with the entry after the last entry currently displayed.