Interlogix NS3550-8T-2S User Manual - Manual (Page 284)

User’s Manual of NS3550-8T-2S
284
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4.17.9 RMON History Status
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; screen in
Figure 4-17-9 appears.
Figure 4-17-9: RMON history overview page screenshot
The page includes the following fields:
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 total number of events in which packets were dropped by the probe due to
lack of resources.
 Drops 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.
 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.
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