3Com corebuilder 3500 Implementation Manual page 548

548 C 18: D
HAPTER EVICE
M
ONITORING
Number of received broadcast packets
Number of received multicast packets
Number of received packets with CRC or alignment errors
Number of received packets that are undersized but otherwise
well-formed
Number of received packets that are oversized but otherwise
well-formed
Number of received undersized packets with either a CRC or an
alignment error
Number of detected transmit collisions
Byte sizes include the 4-byte FCS, but exclude the framing bits. Table 66
lists the ethernet packet length counters that are implemented in the
RMON-1 statistics group to keep track of the frame sizes that are
encountered.
Table 66 Supported Frame Sizes for Ethernet and FDDI
Ethernet
64
65 – 127
128 – 511
512 – 1023
1024 – 1518 (1024 – 1522 bytes
when tagging is enabled)
History and axFDDIHistory Groups
The history and axFDDIHistory groups record periodic statistical samples
for Ethernet and FDDI interfaces and store them for later retrieval. The
information available per interface for each time interval includes:
Number of received octets
Number of received packets
Number of received broadcast packets
Number of received multicast packets
Number of received packets with CRC or alignment errors
Frame Lengths (Bytes)
FDDI
22 or fewer
23 – 63, 64 – 127
128 – 511
512 – 1023
1024 – 2047, 2048 – 4095