D V S M a n a g e d I n d u s t r i a l R a c k Mo u n t E t h e r n e t S wi t c h U s e r Ma n u a l
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RMON Ethernet History Statistics
Item
Description
Index
The index that uniquely identifies the entry in the History Control Configuration
table.
Sample Index
An index that uniquely identifies the particular polling sample that this entry
represents among all polling samples associated with the same entry in the
History Control Configuration table. This index starts at 1 and increases by one
as each new polling sample is taken.
Interval Start
The time when the polling (sampling) interval started.
Drop Events
The number of events during the sampling interval in which packets were
dropped on the interface because of the lack of resources. This number does not
specify the number of packets that were dropped but the number of times the
packets were dropped.
Octets
The number of data octets (including those in bad packets) received on the
interface (excluding the framing bits, but including the FCS octets) during the
sampling interval.
Packets
The number of packets received on the interface (including the bad packets, the
broadcast packets, and the multicast packets) during the sampling interval.
Broadcast Packets
The number of broadcast packets received on the interface during the sampling
interval. These packets were directed to the broadcast addresses.
Multicast Packets
The number of multicast packets received on the interface during the sampling
interval. These packets were directed to the multicast addresses. (This number
does not include the packets addressed to a broadcast addresses.)
CRC Errors
The number of packets which are received on the interface during the sampling
interval, have a length (excluding the framing bits, but including the FCS octets)
between 64 and 1518 octets, and have 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).
Under Size Packets
The number of packets which are received on the interface during the sampling
interval, less than 64 octets in length (excluding the framing bits, but including
the FCS octets), and were well formed.
Over Size Packets
The number of packets which are received on the interface during the sampling
interval, more than 1518 octets in length (excluding the framing bits, but
including the FCS octets) and that were well formed.
Fragments
The number of packets which are received on the interface during the sampling
interval, are less than 64 octets in length (excluding the framing bits, but
including the FCS octets), and have 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).
Jabbers
The number of packets which are received on the interface during the sampling
interval, are longer than 1518 octets in length (excluding the framing bits, but
including the FCS octets) , and have 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).
Collisions
The best estimate of the number of collisions on the interface during the
sampling interval.
Utilization
The best estimate of the mean physical layer network utilization on the interface
during the sampling interval, in hundredths of a percent.
Summary of Contents for DVS-328 series
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Page 13: ...Chapter 1 Introduction 1 5 MEMO ...
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Page 64: ...Chapter 3 Featured Functions 3 43 ...
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