Cabletron Systems SmartSTACK ELH100 User Manual
Page 98
80 Web-Based Management
ELH100-12/24TX
CRC Alignment Errors
Number of packets received during this sampling interval that
had a length (excluding framing bits but including FCS octets)
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 Packets
Number of packets received during this sampling interval that
were less than 64 octets long (excluding framing bits but
including FCS octets) but were otherwise well formed.
Oversize Packets
Number of packets received during this sampling interval that
were longer than 1518 octets (excluding framing bits but
including FCS octets) but were otherwise well formed.
Fragments
Total number of packets received during this sampling interval
that were less than 64 octets in length (excluding framing bits
but including FCS octets), 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). Note that it is entirely normal for etherHistoryFragments
to increment. This is because it counts both runts (which are
normal occurrences due to collisions) and noise hits.
Jabbers
Number of packets received during this sampling interval that
were longer than 1518 octets (excluding framing bits but
including FCS octets), and 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).
Collisions
Best estimate of the total number of collisions on this Ethernet
segment during this sampling interval.
Utilization
Best estimate of the mean physical layer network utilization on
this interface during this sampling interval, in hundredths of a
percent.
[Refresh]
Immediately refreshes the status.
Refresh Mode Select
The scroll-down window includes options for:
“autoRefresh” of the screen every 10 seconds, or
“manual” refresh by pressing the [Refresh] button.
Values are counted from the time the Control Table entry was created.