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Chapter 5 Configuring remote network monitoring (RMON) 93
Using Web-based Management for the BayStack 380-24F Gigabit Switch
2 Click Submit.
The RMON Ethernet Statistics Table is updated with information about the
selected device (Figure 34 on page 92).
Table 36 RMON Ethernet page items
Item Description
Displays statistics as a bar graph.
Displays statistics as a pie chart.
Port The port number that corresponds to the selected switch.
Drop Events The number of events in which packets were dropped by the interface due to a lack of resources.
Octets The number of octets of data (including those in bad packets) received on the network (excluding
framing bits, but including Frame Check Sequence (FCS) octets).
Packets The number of good packets received that were directed to the broadcast address. This does not
include multicast packets.
Broadcast The number of good packets received that were directed to the broadcast address. This does not
include multicast packets.
Multicast The number of good packets received that were directed to the multicast address. This does not
include packets sent to the broadcast address.
CRC Align Errors The number of packets received that had a length (excluding and 1518 octets, inclusive, but had
either a bad Frame FCS with an integral number of octets (FCS errors) with a non-integral
number of octets (alignment error).
Undersize The number of packets received that were less than 64 octets long (excluding framing bits, but
including FCS octets) and were otherwise well-formed.
Oversize The number of packets received that were longer than 1518 octets long (excluding framing bits,
but including FCS octets) and were otherwise well-formed.
Fragments The number of packets received that were less than 64 octets in length (excluding framing bits,
but including FCS octets) and had either a bad 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” number of collisions on this Ethernet segment.
Jabbers The number of packets received that were longer than 1518 octets in length (excluding framing
bits, but including FCS octets), and had either a bad FCS with an integral number of octets (FCS
Error) or a bad FCS with a non-integral number of octets (Alignment Error).
Packets
< = 64 bytes
65-127 bytes
128-255 bytes
256-511 bytes
512-1023 bytes
1024-1518 bytes
The number of octets received (including bad packets) in length (excluding framing bits, but
including FCS octets).