Configuring RMON show rmon stats
11-16 Network Monitoring Configuration
Table 11-3 show rmon stats Output Details
Output... What it displays...
Port Port designation.
Owner Name of the entity that configured this entry. Monitor is default.
Data Source Data source of the statistics being displayed.
Drop Events Total number of times that the switch was forced to discard frames due
to lack of available switch device resources. This does not display the
number of frames dropped, only the number of times the switch was
forced to discard frames.
Collisions Total number of collisions that have occurred on this interface.
Jabbers Total number of frames that were greater than 1518 bytes and had
either a bad FCS or a bad CRC.
Packets Total number of frames (including bad frames, broadcast frames, and
multicast frames) received on this interface.
Broadcast Pkts Total number of good frames that were directed to the broadcast
address. This value does not include multicast frames.
Multicast Pkts Total number of good frames that were directed to the multicast
address. This value does not include broadcast frames.
CRC Errors Number of frames with bad Cyclic Redundancy Checks (CRC)
received from the network. The CRC is a 4-byte field in the data frame
that ensures that the data received is the same as the data that was
originally sent.
Undersize Pkts Number of frames received containing less than the minimum Ethernet
frame size of 64 bytes (not including the preamble) but having a valid
CRC.
Oversize Pkts Number of frames received that exceeded 1518 data bytes (not
including the preamble) but had a valid CRC.
Fragments Number of received frames that are not the minimum number of bytes
in length, or received frames that had a bad or missing Frame Check
Sequence (FCS), were less than 64 bytes in length (excluding framing
bits, but including FCS bytes) and had an invalid CRC. It is normal for
this value to increment since fragments are a normal result of collisions
in a half-duplex network.
Packets Total number of packets, including bad, broadcast and multicast.
Octets Total number of octets (bytes) of data, including those in bad frames,
received on this interface.
0 – 64 Octets Total number of frames, including bad frames, received that were 64
bytes in length (excluding framing bits, but including FCS bytes).
65 – 127 Octets Total number of frames, including bad frames, received that were
between 65 and 127 bytes in length (excluding framing bits, but
including FCS bytes).
128 – 255 Octets Total number of frames, including bad frames, received that were
between 128 and 255 bytes in length (excluding framing bits, but
including FCS bytes).
256 – 511 Octets Total number of frames, including bad frames, received that were
between 256 and 511 bytes in length (excluding framing bits, but
including FCS bytes).