Enterasys Networks 2200 - Manual (Page 235)

RMON Statistics Screen
Device Statistics Menu Screens 10-11
Multicast Pkts
(Read-Only) See the total number of good frames received that were directed to a
multicast address. The value of this field does not include frames
directed to the broadcast address.
CRC Align Errors
(Read-Only) See the 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.
Undersized Pkts
(Read-Only) See the number of frames received whose size was less than the
minimum Ethernet frame size of 64 bytes, not including preamble, but
have a valid CRC.
Oversized Pkts
(Read-Only) See the number of frames received whose size exceeded 1518 data
bytes, not including preamble, but have a valid CRC.
Fragments
(Read-Only) See the 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 have an invalid CRC.
NOTE: It is normal for the Fragments field to increment.
Fragments are a normal result of collisions in a half-duplex
network.
Jabbers
(Read-Only) See the total number of frames that were greater than 1518 bytes and
had either a bad FCS or a bad CRC.
Total Packets
(Read-Only) See the total number of frames (including bad frames, broadcast
frames, and multicast frames) received on this interface.
Total Octets
(Read-Only) See the total number of octets (bytes) of data, including those in bad
frames, received on this interface.
64 Octets
(Read-Only) See the total number of frames, including bad frames, received that
were 64 bytes in length (excluding framing bits, but including FCS
bytes).
Table 10-4 RMON Statistics Screen Field Descriptions (Continued)
Use this field… To…