Water System User Manual

Chapter 3 Configuring and graphing ports 95
Reference for the BayStack 380-24F Gigabit Switch Management Software
Table 36 describes the RMON tab fields.
Table 36 RMON tab fields
Field Description
Octets The total number of octets of data (including those in bad packets)
received on the network (excluding framing bits but including
FCS octets). You can use this object as a reasonable estimate of
Ethernet utilization. For greater precision, sample the etherStatsPkts
and etherStatsOctets objects before and after a common interval.
Pkts The total number of packets (including bad packets, broadcast
packets, and multicast packets) received.
BroadcastPkts The total number of good packets received that were directed to the
broadcast address. Note that this does not include multicast packets.
MulticastPkts The total number of good packets received that were directed to a
multicast address. Note that this number does not include packets
directed to the broadcast address.
CRCAlignErrors 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 nonintegral
number of octets (Alignment Error).
UndersizePkts The total number of packets received that were less than 64 octets
long (excluding framing bits but including FCS octets) and were
otherwise well formed.
OversizePkts The total number of packets received that were longer than
1518 octets (excluding framing bits but including FCS octets) and
were otherwise well formed.
Fragments The total number of packets received that were less than 64 octets in
length (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 nonintegral number of octets
(Alignment Error). It is entirely normal for etherStatsFragments to
increment because it counts both runts (which are normal occurrences
due to collisions) and noise hits.
Collisions The best estimate of the total number of collisions on this Ethernet
segment.
Jabbers The total number of packets received 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). Jabber is defined as the condition where
any packet exceeds 20 ms. The allowed range to detect jabber is
between 20 ms and 150 ms.